GENERAL CATALOGUE

CHUBUBIKA CORPORATION

WE CONTEMPLATE FLOW PHENOMENA!

WE EXPLORE MYSTERY OF SOIL!

ASERIES

* Handle is an optional accessory.

RD

D

S

φHφB

C

φA φG

t1t3

Water pressure

* Profile of Model A-200 is different from the photographs.

1

BUNSUISENPlastic product

Model A: BUNSUISEN

Specification

Model A: BUNSUISEN� (Unit:㎜)

Part No. A B C D G H R S t1 t3

A-50 64 56 100 80 65 78 120 145 4.0 12

A-65 81 73 125 110 84 100 155 185 5.0 13

A-75 95 84 128 126 96 117 175 220 4.5 14

A-100 120 111 121 153 125 140 205 265 6.0 18

A-125 149 137 128 184 153 166 245 315 6.0 20

A-150 174 162 128 222 178 202 300 390 6.0 20

A-200 225 213 140 290 230 266 400 510 7.0 25

Features

◦��Vinyl chloride pipe can be attached easily to it without adhesive.◦��It is light, corrosion resistant, watertight and easy to handle.◦��It can adjust amount of water intake easily.

*If it is difficult to open and close the cap owing to the attachment position, use an optional handle (500L, 1000L).

BUNSUISEN is a (Simple slide inlet valve) which is used to irrigate each field from an irrigation channel, It is usefully applied especially in new construction work.

Model AH: BUNSUISEN (Attachment type with lever)Model A: BUNSUISEN (with lever) Model AH: BUNSUISEN (Attachment type)

t1t2

Flush bolt

Water pressure

Handle

S

D

CR

φAφB

65

2019181716151413121110987654321

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

75100125150

7384108137163

115133133133145

Flow rate （Q） ℓ/sec

ValveCategory I.D.

Sketch of measuring device

ValveUnit (mm)

Rectifyer plate L＝15ｍ

Channel with variable slope

90° triangular weir

Base length

Water depth （H） cm

φ65 φ75 φ100 φ125 φ150

■ Valve Q ~ H curve (Reference)

* Socket is not included.* Lever is different for each size.

2

Installation view

Installation

Model AH: BUNSUISEN (Attachment type)� (Unit: ㎜)Part No. A B C D t1 t2 R SAH-50 50 78 130 105 8 12 136 158

AH-65 65 100 140 125 8 18 161 194

AH-75 75 117 160 140 8 18 188 227

AH-100 100 140 180 170 8 18 218 273

AH-125 125 166 195 195 8 19 252 324

AH-150 150 202 230 230 8 19 302 385

AH-200 200 266 300 300 8 25 401 516

AH-250 250 325 350 400 12 37 540 710

AH-300 300 375 400 450 12 42 620 810

AH-350 350 434 450 500 12 48 710 920

❶�Field construction channel - Place concrete after provid-ing a hole that can accommodate the dimension A. After removing the form, install a valve, fix it with mortar or calking compound and then install a specified pipe.

❷�When using a concrete pit - Place concrete after setting a circular blank form. Follow then the steps same as above.

❸�Flume channel without hole - Bore hole at a required posi-tion. Follow then the steps same as above.

■ Measuring methodMeasuring device is set horizontally on a channel with variable slope. Attaching a valve to the leading end of the device, water is drained to a triangular weir tank.Amount of flow is obtained by measuring the water received in a bucket, when the amount is small (approx. 1 litter/sec), or by measuring the depth of water in the triangular weir in the other.

❹�When installing on earth channel - Jacket the valve with a small amount of concrete, and then install a pipe.

❺�When taking bottom water from flume - Install by providing a concrete pit at the flume joint, and then install the valve.

❻�When heights of water intake position and outlet are different largely - Provide a pit on the irrigation channel, use a bent pipe or finely adjust the angle to install the valve and provide a diversion pit at the outlet.

* Regarding the installation of model AH products, refer to the Installation views ❶ to ❹ for the C-Series manual type sluice gate door (Page 16).

ASERIES

Farm road Channel ridge

Irrigation channel

Vinyl chloride pipe

BUNSUISEN with screen

Feeding pipe Conversion socket

Drainage channel

PVC gate or Screw type lock plug

Collecting pipe

3

BUNSUISEN (with screen)Plastic product

Model A: BUNSUISEN with screen

❶�Open the valve and lock plug to pass the water.❷�To enhance the effect, introduce water while the lock is

closed, and open it when water is filled.

❸�Effect may be enhanced further if water is passed regularly.

Operation

Installation view

■Construction method for preventing clogged conduitDraining effect of conduits decreases with progress of time owing to clogging.Jet cleansing, or the like, is employed at some places to prevent clogged conduits. These methods, how-ever, are not only expensive but also complicated in handling, maintenance or control. They are not promul-gated so much also because, for example, they may not be applicable depending on conditions of piping.Cleansing method utilizing valves (Model A) has been introduced to solve such problems. The products have been accepted favorably at areas where they are employed.(This method is recommended because of simplified construction work and readiness for use from the very date of construction.)

4

ASERIES

5

BUNSUISEN (for concrete canal)Plastic product

Model AK: BUNSUISEN (for concrete canal)

Installation

◦��Insert the BUNSUISEN (for concrete canal) in the notch of concrete spout. Connect a water pipe and then backfill with mortar or earth.

Specification

Model AK: BUNSUISEN (for concrete canal)� (Unit: ㎜)

Part No. X1�(X2) Y Z H A B C D E P t1 t2 t3

AK-100Specified dimensions

(See table at right.)

* X2 may not be specified.

120 105 130 155 135 24 8 6 10

AK-125 149 130 134 180 160 24 8 6 10

AK-150 174 152 134 202 182 24 8 6 10

◦��Free adjustment of the amount of intake water by means of the adjustment plate.◦��Simple setting to concrete spout.

(Dimensions need to be specified.)◦��Simple operation, light-weight, corrosion resistant and watertight structure.◦��Where in-place or water pipe is not required, water tightness should be secured

employing a Model AKD product equipped with cut-off rubber.

Features

BUNSUISEN (for concrete canal) have been developed for simplified installation to concrete spouts (joints) for irrigation channels.

Model AKD: BUNSUISEN (for concrete canal)

6

Installation view

14

(Note) Minimum dimension required to fully open the shutter

Channel crest

Waterpressure

(X2)

P

Z

D

φB

X1

EH

Y

t1t3 C

t2φA

BSERIES

* Handle is an optional accessory.

S

R

C

φD

φH

φB φAφE

t1t3

Water pressure

7

BUNSUISEN (Insert type)Plastic product

Model B1: BUNSUISEN (Insert type)

Specification

Features

◦��BUNSUISEN can be used by simply inserting in the water intake opening (Concrete pipe, Hume pipe, vinyl chloride pipe).◦��Amount of intake water can be adjusted finely using the adjustment cap.◦��Amount of intake water can be maximized by removing the valve (B1 type).

BUNSUISEN (Insert type) is used to irrigate each field from an irrigation channel, and is suitable especially to install on in-place pipe (Hume pipe / vinyl chloride pipe).

* U of part No. means it is suitable to VU pipes, P to VP pipes and H to HP pipes.* Profile of B1-125 flange is square.

Model B1: BUNSUISEN (Insert type)� (Unit: ㎜)Part No. A B C D E H R S t1 t3B1-100U

94 71 50 128110

100 157 190 6 13B1-100P 102B1-100H 102B1-125U

120 111 115 153133

140 205 265 6 18B1-125P 126B1-125H 126B1-150U

140 115 85 180157

140 213 270 5 18B1-150P 146B1-150H 159B1-200U

190 165 90 220207

202 280 380 6 19B1-200P 194B1-200H 207B1-250U

225 213 140 290255

266 400 510 7 25B1-250P 242B1-250H 255

Model B2: BUNSUISEN (Insert type large size with lever)Model B1: BUNSUISEN (Insert type with lever) Model B2: BUNSUISEN (Insert type large size)

φB

φA

φQ

Insert ring

Position fixing screw

C

50

70t1

t2R

D

S Water pressure

Handle

8

Installation

Model B2: BUNSUISEN (Insert type large size)� (Unit: ㎜)

Part No. A B C D Q R S t1 t2

B2-300 250 325 350 400 284 540 710 12 37

B2-350 300 375 400 450 346 620 810 12 42

B2-400 350 434 450 500 393 710 920 12 48

◦��Model B1 product should be used by inserting in an in-place pipe. (Note 2)◦��Model B2 product should be used; ① Insert the insert ring section (made of synthetic resin) in an in-place pipe, open the cap fully

and fix provisionally from the inside with the position fixing screw of insert ring (use Allen wrench). ② Fill the clearance between the positioned insert and the pipe with mortar, bond, etc. (Note 3)

◦��Note 1: Adjust the pipe diameter relative to in-place pipe by jacketing with putty, cloth, etc. When installing the valve, clean the in-side of in-place pipe and fix with mortar, bond, etc.

Table of valves applicable to various in-place pipes� (Unit: ㎜)In-place�pipe�(I.D.) Valve

InstallationConcrete pipeHume pipe Vinyl chloride pipe Part No. O.D.

90 (VU-75)83 A-65 81 Note 1: Substituted with A Series.100 (VP-100)100 B1-100P / B1-100H

Use rubber packing Note 2

(VU-100)107 B1-100U125 (VP-125)125 B1-125P / B1-125H

(VU-125)131 B1-125U150 (HP-150)150 B1-150H

(VU-150)154 B1-150U(VP-150)146 B1-150P

200 (VU-200)202 B1-200U / B1-200H(VP-200)194 B1-200P

250 (VU-250)250 B1-250U / B1-250H(VP-250)240 B1-250P

300 (VU-300)298 (VP-300)286 B2-300Use insert ring Note 3350 (VU-350)348 B2-350

400 (VU-400)395 B2-400

Installation view

CSERIES

4-φRprepared hole

Optional

Waterpressure

D

B

φA

H

P

(L)E

φA

4-φRhole

Waterpressure

Pressure reducing lever

D

B

H

E P

I

* Socket is an optional item. * Pressure reducing lever is used only on sizes larger than 400.

Waterpressure

4-φR holeD

A

K

B

H

E

9

HANDY FLASHBOARDPlastic product

Model C2: HANDY FLASHBOARD (for large pipe)

Model CK3: HANDY FLASHBOARD (Lever type)� (Unit: ㎜)

Part No. A B D E H K R

CK3-250 250 530 330 48 540 250 13

CK3-300 300 635 400 52 620 300 13

CK3-350 350 735 470 56 690 350 13

CK3-400 400 840 540 60 770 400 13

CK3-450 450 940 610 60 850 450 13

CK3-500 500 1040 680 60 920 500 13

Model C1: HANDY FLASHBOARD (for small pipe)� (Unit: ㎜)

Part No. A B D E H L P R Applicable�pipe

C1-100 100 310 200 18 310 45 32 7 VP・VU-100

C1-125 125 360 224 18 350 60 33 7 VP・VU-125

C1-150 150 410 250 18 390 76 33 7 VP・VU-150

C1-200 200 510 300 18 460 100 34 7 VP・VU-200

* Joint socket is not included. (Dimension L for optional setting)

* Dimensions B and H for Model CK4 (4-way watertigzht) become longer.

Model CB3: HANDY FLASHBOARD (Lever type)� (Unit: ㎜)Part No. A B D E H K R

CB3-200×150 200 330 280 48 390 150 13CB3-250×175 250 380 330 48 430 175 13CB3-300×200 300 430 380 48 470 200 13CB3-350×235 350 500 430 48 520 235 13CB3-400×260 400 550 500 52 560 260 13CB3-450×295 450 625 550 52 610 295 13CB3-500×320 500 680 620 56 650 320 13CB3-550×355 550 750 670 56 710 355 13CB3-600×380 600 805 740 60 750 380 13CB3-650×415 650 875 790 60 800 415 13

Model C2: HANDY FLASHBOARD (for large pipe)� (Unit: ㎜)Part No. A B D E H I P RC2-250 250 595 370 30 585 165 40 13C2-300 300 705 430 40 670 190 40 13C2-350 350 810 490 40 750 215 40 13C2-400 400 920 580 40 890 240 40 13C2-450 450 1040 650 40 965 285 60 13C2-500 500 1160 700 40 1060 310 60 13

* Joint socket is not included.

* Dimensions B and H for Model CB4 (4-way watertight) become longer.

Specification

Model C1: HANDY FLASHBOARD (for small pipe) Model C2: HANDY FLASHBOARD (for large pipe) Model CK3/CB3: HANDY FLASHBOARD (Lever type)

HANDY FLASHBOARD has a simple structure and made of PVC used for irrigation canal.

3-way watertight and 4-way watertight models are available. (4-way watertight only for Model C2C) * See page 16.

Waterpressure

DA

K/2K

BH

E

4-φR hole

Waterpressure4-φR hole

2-Plunger

D

φAK

I

B

H

E

10

Model C2C: HANDY FLASHBOARD (Chain type)� (Unit: ㎜)

Part No. A B D E H I K R

C2C-200 200 510 310 32 760 150 230 13

C2C-250 250 615 380 34 850 165 280 13

C2C-300 300 720 450 46 925 195 330 13

C2C-350 350 820 500 48 985 235 380 13

C2C-400 400 920 600 50 1060 260 430 13

C2C-450 450 1020 650 50 1135 285 480 13

C2C-500 500 1160 700 50 1250 310 530 13

Model CKC3: HANDY FLASHBOARD (Chain type)� (Unit: ㎜)

Part No. A B D E H K R

CKC3-250 250 530 330 48 790 250 13

CKC3-300 300 635 400 52 870 300 13

CKC3-350 350 735 470 56 945 350 13

CKC3-400 400 840 540 60 1020 400 13

CKC3-450 450 940 610 60 1095 450 13

CKC3-500 500 1040 680 60 1170 500 13

* Dimensions B and H for Model CKC4 (4-way watertight) become larger by 20 mm.

Model CBC3: HANDY FLASHBOARD (Chain type)� (Unit: ㎜)

Part No. A B D E H K R

CBC3-200×150 200 330 280 48 640 150 13

CBC3-250×175 250 380 330 48 680 175 13

CBC3-300×200 300 430 380 48 720 200 13

CBC3-350×235 350 500 430 48 770 235 13

CBC3-400×260 400 550 500 52 805 260 13

CBC3-450×295 450 625 550 52 865 295 13

CBC3-500×320 500 680 620 56 905 320 13

CBC3-550×355 550 750 670 56 955 355 13

CBC3-600×380 600 805 740 60 995 380 13

CBC3-650×415 650 875 790 60 1050 415 13

* Dimensions B and H for Model CBC4 (4-way watertight) become larger by 20 mm.

Specification

Model C1: HANDY FLASHBOARD (for small pipe) Model C2C: HANDY FLASHBOARD (Chain type)Model CK3/CB3: HANDY FLASHBOARD (Lever type)

Model CKC3/CBC3: HANDY FLASHBOARD (Chain type)

Model C2C: HANDY FLASHBOARD (Chain type)

CSERIES

Waterpressure

80

H

B C

φA

Waterpressure

80

H

B C

φA

Waterpressure

B C

H

80

φA

11

HANDY FLASHBOARD (Shutter type)Plastic product

Model C3: HANDY FLASHBOARD (Shutter type)

Model C3A: HANDY FLASHBOARD (Shutter type)� (Unit: ㎜)

Part No. A B C H

C3A-100 114 178 78

Spec

ified d

imen

sions

C3A-125 140 204 82

C3A-150 165 232 82

Model C3B: HANDY FLASHBOARD (Shutter type)� (Unit: ㎜)

Part No. A B C H

C3B-100 114 178 50

Spec

ified d

imen

sions

C3B-125 140 204 52

C3B-150 165 232 52

Model C3C: HANDY FLASHBOARD (Shutter type)� (Unit: ㎜)

Part No. A B C H

C3C-100 114 178 50

Spec

ified d

imen

sions

C3C-125 140 204 52

C3C-150 165 232 52

Specification

Features

◦��There are 3 types of gate according to direction of water pressure.◦��The length of body need to be specified according to the height of channel.◦��It can adjust the length of conduit in tune with canal width. (Main unit VP·VU joint)◦��Door part can be taken apart.◦��Please confirm that the direction of water pressure is defined for each types.◦��Note that It flow over from the top of gate in case of water level become higher than the length of body.

HANDY FLASHBOARD (Shutter type) is versatile and reasonable price gate made of PVC used for inlet port of paddy field.

* Conduit pipe is an optional item. * Contact us in case of other size.

Model C3A: HANDY FLASHBOARD (Shutter type) Model C3B: HANDY FLASHBOARD (Shutter type) Model C3C: HANDY FLASHBOARD (Shutter type)

CSERIES

4-M8Screw anchor

H

L

43

B

DA

50 5018

Waterpressure

12

HANDY FLASHBOARD (Aluminum type)Al alloy and Plastic product

Model CMK3: HANDY FLASHBOARD (Aluminum type)

Specification

Features

◦Light and highly corrosion resistant.◦Parts of frame and handle are made of aluminum alloy while synthetic alloy is used for the cut-off face and the shutter.◦Synthetic resin used for the cut-off section enhances water tightness and provides stable operation.◦Shutter and sliding surface made of synthetic resin reduce the friction resistance, allowing opening and closing effortlessly.◦Height of mounting anchor plate is adjustable.◦Simplified and sturdy structure and operation.◦3-way and 4-way models are provided.

HANDY FLASHBOARD (Aluminum type) is light, sturdy and highly water cutting simple manual hoisting gate, as-sembled with aluminum and synthetic resin.

* 4-way models are also produced.* It may not be used depending on properties of water such as sewage, hot spring water, etc.

Model CMK3: HANDY FLASHBOARD (Aluminum type)� (Unit: ㎜)Part No. A B D L H

CMK3-200 200 200 316 420 470

CMK3-250 250 250 366 520 545

CMK3-300 300 300 416 620 620

CMK3-350 350 350 466 720 695

CMK3-400 400 400 516 820 770

CMK3-450 450 450 566 920 845

CMK3-500 500 500 616 1020 920

Model CMB3: HANDY FLASHBOARD (Aluminum type)� (Unit: ㎜)Part No. A B D L H

CMB3-200×150 200 150 316 320 395

CMB3-250×175 250 175 366 370 432

CMB3-300×200 300 200 416 420 470

CMB3-350×235 350 235 466 490 522

CMB3-400×260 400 260 516 540 560

CMB3-450×295 450 295 566 610 612

CMB3-500×320 500 320 616 660 650

CMB3-550×355 550 355 666 730 702

CMB3-600×380 600 380 716 780 740

CMB3-650×415 650 415 766 850 792 ■ 4-way watertight type* Positive water pressure specification* Dimensions L/H are extended by 20 mm.

■ Chain type* Where a cover or grating is placed over

the pit or channel* 3-way and 4-way watertight models are

available.

CSERIES

E

ｔ

E

L

H

B

A

D

Water pressure

13

HANDY FLASHBOARD (Stainless type)Stainless steel + Reinforced plastic product

Model CH: HANDY FLASHBOARD (Stainless type)

Specification

Features

◦Light and highly corrosion resistant.◦Color and materials are selected taking the matching with scenery into consideration.◦Gate is made mainly of stainless steel. Shutter is made of plastics reinforced with long fiber glass.◦Round handle stopper is employed for free adjustment of shutter hoisting height. (See photograph shown below.)◦Detachable round handle stopper may be employed as an option, to prevent abuse.

HANDY FLASHBOARD (Stainless type) is light and highly corrosion resistant manual hoisting gate with free adjustment of hoist amount.

Model CH3L: HANDY FLASHBOARD (Stainless type)� (Unit: ㎜)

Part No. A B D E Ｌ Ｈ ｔCＨ3Ｌ-200×200 200 200 260 65 480 400 20CＨ3Ｌ-250×250 250 250 310 65 580 450 20CＨ3Ｌ-300×300 300 300 360 65 680 500 20CＨ3Ｌ-350×350 350 350 410 65 780 550 20CＨ3Ｌ-400×400 400 400 460 65 880 610 20CＨ3Ｌ-450×450 450 450 510 65 980 660 20CＨ3Ｌ-500×500 500 500 560 65 1080 710 20CＨ3Ｌ-600×600 600 600 660 75 1280 800 30CＨ3Ｌ-200×150 200 150 260 65 380 350 20CＨ3Ｌ-250×175 250 175 310 65 430 380 20CＨ3Ｌ-300×200 300 200 360 65 480 400 20CＨ3Ｌ-350×235 350 235 410 65 550 440 20CＨ3Ｌ-400×260 400 260 460 65 600 460 20CＨ3Ｌ-450×295 450 295 510 65 670 500 20CＨ3Ｌ-500×320 500 320 560 65 720 520 20CＨ3Ｌ-550×355 550 355 610 65 790 560 20CＨ3Ｌ-600×380 600 380 660 65 840 580 20CＨ3Ｌ-650×415 650 415 710 65 910 620 20

* Contact us for products with sizes other than above or 4-way models.

* Mounting method and gate structure may be changed depending on the conditions at site. Contact us for further details.

Relationship between anchors and part No.

CＨ3Ｌ-XXX……3-way watertight · Screw anchorCＨ39-XXX……3-way watertight · φ9 anchor With pressure reducing device

(4-way watertight, set at higher than 400)

CSERIES

4-M8Screw anchor

OPEN ROCK

Waterpressure

Fixing anchor type（Ａ type）

Length ofhandle:H（Normal）

E

G

F

D

BC

33221

Opening:φＡ

Extensionhandle:700or1000

14

HANDY FLASHBOARD (Wedge type)Stainless steel product

Model CR1-A: HANDY FLASHBOARD (Wedge type)

Specification

◦��Durable gate due to made of stainless steel.◦��Easy to control water-management with one-touch operation of handle.◦��Door is set up on arbitrary height.◦��Adverse water pressure is acceptable. (within 0.5m)◦��Water-stop GUM is replaceable.◦��As for angle type ,It can be installed easily with screw anchors. (CR1-A type)◦��Extension handle is available. (within 1m)◦��Detachable handle type is available. (CR1-C type)

Features

HANDY FLASHBOARD (Wedge type) is simple structure gate made mainly of stainless steel.

* The photograph is for embedding type.

Model CR1-A: HANDY FLASHBOARD (Wedge type)� (Unit: ㎜)

Part No. A B C D E F G H

CR1-100A 100 150 210 72 188 260 495 423

CR1-125A 125 175 235 83 200 283 513 430

CR1-150A 150 195 255 95 220 315 545 450

CR1-200A 200 250 310 120 280 400 670 550

CR1-250A 250 300 360 142 328 470 742 600

CR1-300A 300 350 410 165 375 540 790 625

Locked mode Lock release mode Full-open modeAdjusting mode

CSERIES

A：Effective width

Bore height

Dimension X

B：Effective height

Waterpressure

500

10°

350

15

INSIDE SCREW GATE (Open flap Gate)Stainless steel + Reinforced plastic product

Model CF: INSIDE SCREW GATE (Open flap Gate)

Specification

Features

◦Light and highly resistant to corrosion.◦Frame and spindle are made of stainless steel while shutter is made of plastics reinforced with long glass fibers.◦Handle is detachable to prevent abuse.◦Door can be opened completely thanks to the combination of special spindle structure and chain.◦Where a cover is used (grating, etc.), the spindle will not protrude upward when it is opened completely.

INSIDE SCREW GATE (Open flap Gate) is recommended for applications requiring a larger cross-section of opening in a limited mounting height condition. (Hoisting flap type)

Installation

◦��Weld and fix the product to the foundation concrete tilted by 10°, and pour secondary concrete to cut water off at the sides and lower frames.

❶3-way watertight type.❷��Effective width x dam-up height

Up to 600 mm x 600 mm maximumDimensions A, B and X need to be specified.

Completely opened

Opened by hoistingCompletely closed

Channel bottom

Shutter

Overflow

Water level

Flow

Water level

Flow

Shutter

Doorstop

Conduit

Pit bottom

Sluice gate door

Calking compound

Sluice gate door

Joint filler

A

D

E

J

B

L

E

H

t1（Lower shutter thickness）t2（Upper shutter thickness）

80

Water pressure

Upper shutter heightB/２+10

4-φ13 drill

Lower shutter heightB/２+10

16

HANDY FLASHBOARD (Twin board type)◦��Manual gate with 2-stage shutter, convenient for water

level adjustment.

HANDY FLASHBOARD (Twin board type)� (Unit: ㎜)Part No. A B D E J H L t1 t2 Upper door

adjust allowance

CWK3-200 200 200 340 16 62 405 470 16 12 90CWK3-250 250 250 390 16 62 480 570 16 12 115CWK3-300 300 300 440 16 62 555 670 16 12 140CWK3-350 350 350 490 16 62 630 770 16 12 165CWK3-400 400 400 540 18 66 710 875 18 14 190CWK3-450 450 450 590 18 66 785 975 18 14 215CWK3-500 500 500 640 18 66 860 1075 18 14 240

BF Model: HANDY FLASHBOARD (Twin board type)� (Unit: ㎜)Part No. A B D E J H L t1 t2 Upper door

adjust allowance

CWB3-300×200 300 200 440 16 62 405 470 16 12 90CWB3-350×235 350 235 490 16 62 460 540 16 12 107CWB3-400×260 400 260 540 16 62 495 590 16 12 120CWB3-450×295 450 295 590 16 62 550 660 16 12 137CWB3-500×320 500 320 640 16 62 585 710 16 12 150CWB3-550×355 550 355 690 16 62 640 780 16 12 167CWB3-600×380 600 380 740 18 66 680 835 18 14 180CWB3-650×415 650 415 790 18 66 735 905 18 14 197

Installation

Explanation

3-way watertight structure (Fig. 1)◦��When closed fully, water is stopped at watertight sections at three sides of

shutter (bottom, left and right). Water overflows beyond the shutter.◦��Application example

It is installed at the downstream side of intake from channel to dam up water.

* Concrete anchors are not included. Procure at site referring to the dimension R.

4-way watertight structure (Fig. 2)◦��Since, when closed fully, water is stopped at the watertight sections at

four sides of shutter (top, bottom, left and right), water level may be raised beyond the height of shutter. (Round type model has a 4-way watertight structure because it is watertight over entire circumference.)

◦��Application example It is installed at the entrance of conduit for diversion pit to divert water.

■ Anchor bolt construction (Standard)To install on a concrete wall, drill a little larger holes aligning to the positions of a pair of flash bolts (M6 or M10) provided on the left and right frames of main unit.Pack the drilled holes with mortar, and fix the product by means of strut, etc.After fixing the position of product, fill up the clearance between the concrete wall and the product with motor or calking compound. (Fig. 3)

■ Concrete anchor constructionWhen installing the product with concrete anchors, after drilling anchor holes, make sure to fill rubber type joint filler in the clearance between the product and concrete wall before tightening nuts (Fig. 4).

■ Block-out constructionSet the product in the block-out position and pack mortar or sealing agent.

CSERIES

17

SCREW GATESteel / stainless steel product

Model CS: SCREW GATE

φG

φF

B

A D

E

H

▽GL ▽GL

L

C

Water pressure

Specification

Features

◦Screw gate can be designed and produced according to particular civil engineering structures.◦Frame is made of steel (SS400, painted blue) or stainless steel (SUS304).◦4-way water-tight products are adaptable to positive water pressure only.

SCREW GATE is simplified steel sluice gate equipped with hoisting device (Square).

Model CS: SCREW GATE� (Unit: ㎜)

Part No. A B C D E F G H L(Standard�dimensions)

CS3T-150 150 150 250 75 75 32 350

Spe

cifie

d dimen

sion

s

Spe

cifie

d dimen

sion

s

400

CS3T-200 200 200 300 75 75 32 350 500

CS3T-250 250 250 350 75 75 32 350 600

CS3T-300 300 300 400 75 75 32 350 700

CS3T-350 350 350 450 75 75 32 350 800

CS3T-400 400 400 500 75 75 32 350 900

CS3T-450 450 450 550 75 75 32 350 1000

CS3T-500 500 500 600 75 75 32 350 1100

CS3T-600 600 600 700 75 75 36 500 1300

CS3T-700 700 700 800 75 75 36 500 1500

CS3T-800 800 800 900 75 75 36 500 1700

* Products with sizes other than above may be produced.* Also available are the bevel / rack type hoisting device specification or light weight shutter specification.

* Mounting method and gate structure may be changed depending on the conditions at site. Contact us for further details.

Items and data required for quotation◦Frame / shutter material: SS400 (painted blue) or SUS304.◦Dimension H (channel bottom) or opening bottom to crest.◦Dimension L (Frame length)◦3-way or 4-way watertight (Positive water pressure)◦Spot map

Relationship between materials and Part No.

CS3T-XXX……3-way watertight · SS400CS3S-XXX……3-way watertight · SUS304CS4T-XXX……4-way watertight · SS400CS4S-XXX……4-way watertight · SUS304

CSERIES

18

SCREW GATE (Casting type)Steel / stainless steel product

Model CA: SCREW GATE (Casting type)

Waterpressure

φA

φE

100

L

F

DCB

Specification

Features

◦Shutter and doorstop are made of casting FC200 or SCS13.◦ It can be installed easily using screw anchors.◦Frame is made of steel (SS400, painted blue) or stainless steel (SUS304).◦Water pressure direction is limited to positive only.◦��Inside screw specification is also provided.

SCREW GATE (Casting type) is round sluice gate equipped with hoisting device.

Model CA: SCREW GATE (Casting type)� (Unit: ㎜)

Part No. A B C D E F L

CASS 75 75 160 205 355 350 300

Spe

cifie

d dimen

sion

s

CASS

CAFT

CAFS

100 100 186 230 380 350 300

150 150 236 280 430 350 300

200 200 286 330 480 350 300

250 250 336 380 530 350 300

300 300 386 430 580 350 300

350 350 436 480 630 350 350

400 400 486 530 680 350 400

450 450 536 580 730 350 450

500 500 586 630 780 350 500

600 600 686 760 910 500 600

* CASS / Door·Door-stop:SCS13 frame material: SUS304* CAFT / Door·Door-stop:FC200 frame material: SS400* CAFS / Door·Door-stop:FC200 frame material: SUS304

Installation

❶Stick the attached cut-off rubber to the doorstop.❷Align the bottom of opening on the doorstop to the internal bottom of pipe, and correct the tilt of gate.❸Drive screw anchors in to fix the gate.

CSERIES

（Effective height）

A（Effective width）

D（Frame width）

For weldingφ9 anchor

（Frame height）

Waterpressure （Opening bottom～ Crest）

φG100

L

GL GL

B

E

J

H

19

SCREW GATE (FRP type)Steel / stainless steel + Reinforced plastic product (Light-weigh shutter)

Model CG: SCREW GATE (FRP type)

Specification

Features

◦Screw gate can be designed and produced according to particular civil engineering structures.◦Shutter made of plastics reinforced with long glass fibers can be hoisted lightly.◦Frame is made of steel (SS400, painted blue) or stainless steel (SUS304).◦4-way watertight models are adapted to positive water pressure only.

SCREW GATE (FRP type) is simplified type slide gate equipped with hoisting device and highly durable light-weight shutter.

Model CG: SCREW GATE (FRP type)� (Unit: ㎜)

Part No. A B D E G H J L(Standard�dimensions)

CG3T-150×150 150 150 210 40 350

Spe

cifie

d dimen

sion

s

75

Spe

cifie

d dimen

sion

s

400CG3T-200×200 200 200 260 40 350 75 500CG3T-250×250 250 250 310 40 350 75 600CG3T-300×300 300 300 360 40 350 75 700CG3T-350×350 350 350 410 40 350 75 800CG3T-400×400 400 400 460 40 350 75 900CG3T-450×450 450 450 520 50 350 100 1000CG3T-500×500 500 500 570 50 350 100 1100CG3T-600×600 600 600 670 50 500 100 1300CG3T-700×700 700 700 780 50 500 100 1500CG3T-800×800 800 800 880 50 500 100 1700CG3T-900×900 900 900 1000 65 500 125 1900CG3T-1000×1000 1000 1000 1100 65 500 125 2100

■ ��SCREW GATE(Bevel 2-spindle)

On the 2-spindle type models, spindles will not protrude in the aperture area.

* Products with sizes other than above may be produced.* Contact us for 4-way watertight models.

* Mounting method, gate structure, etc. may be changed depending on the conditions at site. Contact us for further details.

Items and data required for quotation◦Frame material: SS400 (painted blue) or SUS304◦��Light-weight shutter material: Foam plastics reinforced with long

glass fibers.◦Dimension H; Channel bottom or opening bottom ~ crest◦Dimension L (Frame length)◦3-way or 4-way watertight (Positive water pressure)◦Site map

Example of construction

Relationship between materials and Part No.

CG3T-XXX……3-way watertight · SS400CG3S-XXX……3-way watertight · SUS304CG4T-XXX……4-way watertight · SS400CG4S-XXX……4-way watertight · SUS304

CSERIES

B

H

B

L

75

65

76

A

C

D65350

500

Waterpressure

Crest

3-way watertight specification

Optional handle

20

INSIDE SCREW GATEStainless steel product

Model CC: INSIDE SCREW GATE

Specification

Features

◦Simple structure and Low-cost gate.◦Light , compact with Inside screw type, easy to set up anywhere.◦Simple structure and easy for maintenance.◦Stainless steel product (SUS304). (Steel product also available.)◦Handle is detachable to prevent abuse.◦With using optional handle, Spindle does not come out from crest.

INSIDE SCREW GATE is compact and simple stainless gate with Inside screw hoisting device.

Model CC: INSIDE SCREW GATE� (Unit: ㎜)Part No. A B C D L

(Standard�dimensions)

CC3US-150 150 150 222 240

Spe

cifie

d dimen

sion

s

375

CC3US-200 200 200 272 290 475

CC3US-250 250 250 322 340 575

CC3US-300 300 300 372 390 675

CC3US-350 350 350 422 440 775

CC3US-400 400 400 472 490 875

CC3US-450 450 450 522 540 975

CC3US-500 500 500 572 590 1075

CC3US-600 600 600 672 690 1275

* Above specification table is for 3-way watertight type.* 4-way watertight specification and products with sizes other than above are also available.

Items required for quotation◦��Frame material : Standard SUS304

(Steel product also available.)◦Dimension H (channel bottom) or opening bottom to crest.◦Dimension L (Frame length)◦3-way or 4-way watertight (Positive water pressure)

CSERIES

21

INSIDE SCREW GATE (FRP type)Stainless steel + Reinforced plastic product

Model CT1: INSIDE SCREW GATE (FRP type)

Features · Specification

◦��Light and highly corrosion resistant.◦��Color and materials are selected taking

the matching with scenery into consider-ation.

◦��Gate is made mainly of stainless steel. Shutter is made of plastics reinforced with long fiber glass.

◦��Handle is detachable to prevent abuse.◦��Spindle does not come out because of

the inside screw.◦��It is cost effective compared with all-

stainless gate.◦��Lead time for delivery has been reduced

to 1/2. (Compared with our steel gates)

INSIDE SCREW GATE (FRP type) is light, highly corrosion resistant and simple operation gate equipped with a handle-operated hoisting device.

■ Example of construction

Model CT1❶�Provide a block-out where the gate is

installed.❷�Install the gate, and weld and fix anchors

of main unit to joint bars.❸�Place secondary concrete.

*Screw anchor type is available.

Note◦��Do not weld directly onto the main unit.◦��Install in a block-out.

* Auxiliary door shown in the photograph is an optional item.

Installation

Extension handle Cover

GL GL

Secondary concrete

Water pressure

I

J

H

J

I

DE

B（Effective height）

A（Effective width）

Water pressure

Side anchor

Under-anchor

Inside screw type hoisting device

D（Frame width）

E

I

J

B（Effective height）

H（Frame height）

A（Effective width）

N（Shutter height）

Water pressure

Inside screw type hoisting device

Side anchor

Under-anchor

22

Specification

Model CT1: INSIDE SCREW GATE (FRP type)� (Unit: ㎜)Part No. A B D E H I J

CT1-300 300 300 360 30 680 75 60

CT1-350 350 350 410 30 780 75 60

CT1-400 400 400 460 30 880 75 60

CT1-450 450 450 520 35 980 75 75

CT1-500 500 500 570 35 1080 75 75

CT1-600 600 600 670 35 1280 75 75

CT1-700 700 700 780 40 1480 75 80

CT1-800 800 800 880 40 1680 75 80

CT1-900 900 900 1000 50 1880 75 100

CT1-1000 1000 1000 1100 50 2080 75 100

Model CT2: INSIDE SCREW GATE (FRP type)� (Unit: ㎜)Part No. A B D E H I J N

CT2-300 300 300 380 40 760 75 80 340

CT2-350 350 350 430 40 860 75 80 390

CT2-400 400 400 480 40 960 75 80 440

CT2-450 450 450 530 40 1060 75 80 490

CT2-500 500 500 580 40 1160 75 80 540

CT2-600 600 600 680 40 1360 75 80 640

CT2-700 700 700 800 50 1560 75 100 740

CT2-800 800 800 900 50 1760 75 100 840

CT2-900 900 900 1000 50 1960 75 100 940

CT2-1000 1000 1000 1100 50 2160 75 100 1040

■ Example of construction

Extension handle specification (Optional)◦��Extension handle is detachable.◦��When the pit is covered (by grating, etc.), the spindle will not protrude beyond the cover even if the sluice gate is fully opened.

* Products with sizes other than above may be produced.

* Products with sizes other than above may be produced.

CSERIES

4-way watertight specification

Optional handleA（Effective width）

Waterpressure

C

D

L

B

82

56

350

500

125

Crest

（Effective height）

23

INSIDE SCREW GATE (Aluminum type)Aluminum Alloy product

Model CD: INSIDE SCREW GATE (Aluminum type)

Specification

Features

◦ Inside screw gate is made mainly Aluminum Alloy, superior in matching with scenery and compact.◦Light and highly corrosion resistant , Light and smooth hoist operation.◦No need to replace rubber for deterioration because no rubber parts are used.◦��It can be easy to set up in concrete BOX for storage, Because spindle does not move up and down.

(Install for pavement and street is effective)◦Taking on rail structure , Height of mounting anchor plate is adjustable.

INSIDE SCREW GATE (Aluminum type) is compact simplified gate made of Aluminum.

* Recommended water depth is less than 2.0 m.* Products with sizes other than above and 3-way watertight specification are also available.

Model CD: INSIDE SCREW GATE (Aluminum type)� (Unit: ㎜)Part No. A B C D L

(Standard�dimensions)

CDK4-100 100 100 140 216

Spe

cifie

d dimen

sion

s

320

CDK4-150 150 150 190 266 420

CDK4-200 200 200 240 316 520

CDK4-250 250 250 290 366 620

CDK4-300 300 300 340 416 720

CDK4-350 350 350 390 466 820

CDK4-400 400 400 440 516 920

CDK4-450 450 450 490 566 1020

CDK4-500 500 500 540 616 1120

CDK4-600 600 600 640 716 1320

CSERIES

Light-weight shutter

Shutter width：B

Bore diameter：φA

Waterpressure

Screw anchor

Inside screw type hoisting device Detachable handle

Frame width：C

Shutter height：E

F

GL

350

50076

F

500GL

350

76

Shutter height：E

Effective height：A2

Inside screw type hoisting device Detachable handle

Screw anchor Light-weight shutter

Effective width：A1

Frame width：C

Waterpressure

Bore height：A2

24

INSIDE SCREW GATE (PVC type)Stainless steel + PVC product (Light-weight shutter)

Model C: INSIDE SCREW GATE (PVC type)

* Products with sizes other than above and 3-way watertight specification are also available.

Specification

Features

◦Frame is made of stainless steel while shutter and doorstop are made of synthetic resin, in order to maximize advantage of materials.◦Light, highly resistant to corrosion and easy for maintenance and control. It can be operated lightly even by seniors.◦Same water tightness is maintained for a long period of time because no rubber parts are used.◦Handle is detachable to prevent abuse.◦Cross-section of flow is made round or square.◦ It is recommended to use for the depth of water less than 2.0 m.

INSIDE SCREW GATE (PVC type) is simplified type with combined stainless steel and synthetic resin struc-ture and detachable handle-operated hoisting device.

Model C2US: INSIDE SCREW GATE (PVC type)� (Unit: ㎜)Part No. A B C E F

C2US-300 300 344 480 390 790

C2US-350 350 394 530 440 890

C2US-400 400 444 580 490 990

C2US-450 450 494 630 550 1125

C2US-500 500 544 680 600 1225

C2US-600 600 644 780 700 1425

Model CK4US: INSIDE SCREW GATE (PVC type)� (Unit: ㎜)Part No. A1 A2 C E F

CK4US-300×300 300 300 480 390 790

CK4US-350×350 350 350 530 440 890

CK4US-400×400 400 400 580 490 990

CK4US-450×450 450 450 630 550 1125

CK4US-500×500 500 500 680 600 1225

CK4US-600×600 600 600 780 700 1425

DSERIES

A（70）

Ｍ10

B

φD

φＣ

Water pressure

Delivery outlet

Handle

Thread

Rubber packing

Deliveryoutlet

25

OUTLET CONTROL VALVESPlastic product

Model D1: OUTLET CONTROL VALVES

Model D1: OUTLET CONTROL VALVES� (Unit: ㎜)Part No. A B C D

D1-75 77 50 124 89

D1-100 77 50 124 114

D1-125 87 65 151 140

D1-150 105 80 178 165

D1-200 137 106 227 216

* With anchor bolts

Specification

Features

OUTLET CONTROL VALVES allows adjusting amount of water freely at the outlet, when irrigating each field directly from irrigation channel. (For reverse water pressure) Select Model D1 · rotary valve, Model D2C · insert gate or Model D3 · reverse gate depending on the conditions at site.

◦��Use these products when constructing a road utilizing the channel bed or a water amount adjusting device is installed at the outlet out of necessity.

◦��When taking water directly from a deep trunk channel, small basin, farm pond, etc., these products are employed to con-trol water at the outlet of or intermediate position on water pipe.

* Allowable testing strength: Water head at 3 m. Allowable operating strength: Water head at 1.5 m.

Model D1: OUTLET CONTROL VALVES◦��This is installed at the outlet of intake pipe to adjust the amount of

delivery by turning the handle. (Can be disassembled for cleaning.)

Model D2C: HANDY SLUICE PLUG Model D3: HANDY OUTLET GATE

When the channel bed is extended to the road

Road

Water pipe

Road surface drain plug

This product

In case with possible hazards in the channel management

Channel CrestWater pipe

Anti-erosion work

This product

Handle

Screw stopper

Internal cylinder

External cylinder

Rubber plug

Drain pipeCollecting pipe

X

Flow

Water pressure

View X View Ｙ

X Y

LK

H

I

B

D

A

4-φ6

φJφC

Channel

Channel ridge

Water pipe

This product

26

Installation view

Model D2C: HANDY SLUICE PLUG◦��This product is used where the open and close

control is provided at an intermediate position.

Model D3: HANDY OUTLET GATE

Model D3: HANDY OUTLET GATE� (Unit: ㎜)Part No. A B C D H I J K LD3-75 162 265 97 87 268 93 89 64 42

D3-100 187 327 124 96 324 93 114 73 52

D3-125 255 427 151 127 393 93 140 100 78

D3-150 255 427 178 127 393 93 165 100 78

D3-200 305 537 227 152 478 93 216 112 92

Model D2C: HANDY SLUICE PLUG� (Unit: ㎜)Part No. External

cylinderInternalcylinder Water�pipe

D2C-75 VU-75 VP-20 VU-75

D2C-100 VU-100 VP-25 VU-100

D2C-125 VU-125 VP-30 VU-125

D2C-150 VU-150 VP-30 VU-150

* Dimension X should be less than 1,500 mm * Allowable operating strength: Water head at 1.5 m

Model D3: HANDY OUTLET GATE

Model D1: OUTLET CONTROL VALVES Model D2C: HANDY SLUICE PLUG

ESERIES

Drainage channel

Channel ridge Top of Internal cylinderSoil retaining work (Bags with soil)

Paddy field surface

Water level of paddy field

Open-cut after drainage

Winter time drain holeDrain pipe

27

HAISUITOUPlastic product

Model ER: HAISUITOU (ER-type)

Model ER: HAISUITOU (ER-type)� (Unit: ㎜)Part No. A B Application

ER1-150 355 150 Normal type

ER2-150 405 200 Deep-watermanagement type

Specification

Features

Model ER: HAISUITOU (ER-type)◦��Depth of water in paddy field can be adjusted by elevating the internal cylinder.◦��Draining water run off from winter draining hole of external cylinder at winter time.◦��In case of the position for draining at winter time is deep , use Model EA · ER2.

HAISUITOU is a water level adjuster which is used to drain water from the paddy field. There are Model ER · flexible drainage pipe and Model E · standard drainage pipe and Model EA · special drainage pipe, which are selected depending on the conditions at site.

Installation view

φ200High water level

Paddy field level

B

A

10°φ142

(Motion range)

φBInternal cylinder

External cylinder

Closing cap(Winter time draining) Drain pipe

D

X

G

φA

28

❶�Standard sizes for drainage pipe per unit block area are considered to be 100 for 1,000 square meters, 125 per 2,000 square meters and 150 per 3,000 square meters, though it could vary depending on the amount of rainfall, draining time, depth of impound water, or other, at particular area. It is considered also to install the product at two or more places in unit block area.

❷�Since the L shape external cylinder is installed at approx. 100°and an O ring is attached to the joint to drain pipe, it can be installed arbitrarily under ordinary conditions. Where it is installed at a very steep slope, use the drain pipe after cutting obliquely. (Model E)

❸�Install the drainage pipe with its top end at approx. 30 mm below the average height of the surface of paddy field.

❹�When burying the drainage pipe, tread down the ground sufficiently after it is buried.

❺�Since this drainage pipe is buried at the end toe of slope in principle, use a semi circular concrete pipe, short U shape flume, building block, sand bag, etc., as logging for the slope.

❻�When installing the internal cylinder, set it with the triangle mark indicated on the flange oriented to the surface of paddy field. Lock further the internal cylinder with the at-tached O ring. (Model E)

❼�Since the drain hole for winter time is utilized as a draining hole after draining rice farming water or during secondary crop farming, it is opened if it is inserted with the triangle mark oriented to the drainage channel. Cut open the front of the opening to secure a complete draining. (Model E)

Installation

* X (Standard dimension: 400 mm)

FeaturesModel E: HAISUITOU (E-type)◦��Depth of water in paddy field can be adjusted

by elevating the internal cylinder. (Up to 120 mm)◦��After draining water or for draining at winter

time (or secondary crop period), rain water can be drained through the winter draining hole on the external cylinder to dry the paddy field.

Model EA: HAISUITOU (EA-type)◦��Along with the promotion of agricultural

lands to general purpose fields, the posi-tion to install drainage pipes for draining at winter time is becoming so deep that it has become impossible to drain water by standard draining pipes. For such occasions, special drainage pipes of which the draining position in winter time is brought down are provided.

◦��Vinyl chloride tee located at the bottom end of external cylinder allows providing the drain-age hole for winter time at arbitrary positions.

Model E: HAISUITOU (E-type) Model EA: HAISUITOU (EA-type)

Specification

Model E: HAISUITOU (E-type)� (Unit: ㎜)Part No. A B C D F K

E-100 123 80 120 120 320 93

E-125 150 90 120 120 320 118

E-150 187 100 125 120 350 144

Model EA: HAISUITOU (EA-type)� (Unit: ㎜)Part No. A B D G X

EA-100 114 106 150 200

Spe

cifie

ddimen

sion

s

EA-125 140 130 150 200

EA-150 165 153 150 200

φA

φB

φK

D

F

C100°

* The shape of E-100, 125 is different from above

ESERIES

A

B F

E

D

G

H

φC

29

DRAIN BOXPlastic product

Model ET1: DRAIN BOX

Model ET2: DRAIN BOX (ET2-type)

Specification

Features

DRAIN BOX is used to drain water speedily from the paddy field at each field. There are Model ET1 · single crop DRAIN BOX and Model ET2 · general purpose DRAIN BOX.

Model ET1: DRAIN BOX (ET1-type)� (Unit: ㎜)Part No. A B C D E F G H

ET1-100

280 220 150 205 80 50 150

100

ET1-125 127

ET1-150 145

◦��Made of light-weight synthetic resin for convenience of construction work.

◦��For adjustment of water level in paddy field.◦��Although it is designed on the bases of 10% of slope angle,

it can adapt readily to any angles.◦��Sheathing board is made of synthetic resin.◦��If a larger sheathing board is used, it can prevent the slope

face from collapsing.◦��Readily connectible to φ100, 125 and 150 pipes.◦��Select a single crop drain box (ET1) or general purpose

drain box (ET2) depending on purpose of application.

Model ET1: DRAIN BOX (ET1-type)◦��Drain box used mainly for surface drainage.

Model ET2: DRAIN BOX (ET2-type)◦��Adaptable to draining for secondary crop and winter time.◦��It can drain water at the depth of 250 mm to 300 mm under

the surface of paddy field.

φD

AB

EF

G

H

I

L

M

J

C

K

Channel ridge

Drainage channel

Drain pipeDrain Box (ET2)

Sheathing board

30

Model ET1: DRAIN BOX (ET1-type)

❶�Install the drain box aligning to the angle of slope.Model ET1: DRAIN BOX (ET1-type)Install the pipe bottom of drain box at approx. 50 mm below the surface of paddy field. Model ET2: DRAIN BOX (ET2-type)Install the pipe bottom of drain box at approx. 300 mm be-low the surface of paddy field.

❷�When backfilling the drain box after installation, compact around the box and the drain pipe sufficiently.

Installation

Installation view

Specification

Model ET2: DRAIN BOX (ET2-type)� (Unit: ㎜)Part No. A B C D E F G

ET2-100

300 200 335 150 195 230 300ET2-125

ET2-150

Part No. H I J K L M ‐

ET2-100

315 40 315 70 90

100

‐ET2-125 127

ET2-150 145

FSERIES

31

FLAP GATEPVC

FLAP GATE (F1 type)◦��Capable of preventing the backflow of

outside water to inside water, if the outside water level becomes higher than the inside water level at the drain outlet of an agricul-tural field or factory.

◦��Lightweight, highly corrosion resistant, wa-tertight.

◦Applicable to φ75 - 600 drainpipes.◦��Water depth: Within 2.0m (from pipe bot-

tom) *1

FLAP GATE (F2 type)◦��Used to prevent the backflow of drainage

to inland rivers.◦��A simplified flap gate made of synthetic resin.◦��Applicable to usage with a comparatively

small impact on the door.◦��Water depth: Within 2.0m (from pipe bot-

tom) *1

FLAP GATE is prevents backflow in case of flooding or high water.

*1 : Conformable to our simplified water gate design standard.

FLAP GATE (F1 type)

F2 type (900 -1000)

F1 type (400 -600) F2 type (250 -300)

F2 type (350 -800)

Feature

φC

A

φB

2-M6Anchor

E

φA

t

E

A

B t

M10 Anchor

E

A

B t

M10 Anchor

E

A

B t

M10 Anchor

F1-50 ‐ F1-350

F2-100 ‐ F2-200 F2-250,300

F2-350 ‐ F2-800 F2-900,1000

32

* The number of anchors varies according to the size.

FLAP GATE (F1 type)Mount the valve body horizontally or slightly upward.

FLAP GATE (F2 type)Mount on the wall using concrete anchors.Finish the doorstop surface smooth, and tightly adhere the door to the surface.

FLAP GATE (F1 type) (Unit: ㎜)Part No. A B CF1-50 53 67 60F1-75 84 98 89F1-100 104 124 114F1-125 135 151 140F1-150 164 178 165F1-200 215 227 216F1-250 270 280 267F1-300 320 333 318F1-350 350 392 370F1-400 440 446 422F1-450 500 500 472F1-500 560 552 522F1-600 660 670 634

FLAP GATE (F2 type) (Unit: ㎜)Part No. A B E tF2-100 140 75 15

F2-150 210 75 15

F2-200 260 90 20

F2-250 355 310

105

45

F2-300 405 360 45

F2-350 455 410 47

F2-400 505 460 47

F2-450 555 510 50

F2-500 605 560 50

F2-550 655 610 53

F2-600 705 660 53

F2-700 805 760 53

F2-800 905 860 53

F2-900 1045 1000 55

F2-1000 1145 1100 55

Specifications

Installation

FSERIES

A A A

B B B

Hinge Hinge Hinge

400～600

C C C

300～350 700～1000

t

Unequal-sided pipe Unequal-sided pipe Unequal-sided pipe

33

FLAP GATEFRP, Stainless

FLAP GATE (F3 type)

FLAP GATE (F3 type)◦ Applicable to usage with a comparatively large impact

(stress) on the door.◦ Used for a place under a large impact of river water. The

main body is made of square steel pipes and coated with FRP to ensure high rigidity and high corrosion resistance.

◦Doorstop plate is available on option.◦Water depth: Within 2.5m (from pipe bottom) *1

◦ Mount on the wall with concrete anchors. Finish the doorstop surface smooth, and tightly adhere the door to the surface.

*1 : Conformable to our simplified water gate design standard.

FLAP GATE (F3 type)� (Unit: ㎜)Part No. A B C tF3-300 350 350 200 72F3-350 400 400 200 72F3-400 460 460 210 72F3-450 510 510 230 72F3-500 560 560 250 72F3-600 660 660 320 84F3-700 780 780 370 84F3-800 880 880 420 84F3-900 980 980 460 84F3-1000 1080 1080 500 84

F4 type F5 type

Feature

Specifications

FLAP GATE (F3 type) is made of FRP, light and highly corrosion resistant.

M12×100(Anchor)

Hm

C

B

φA

J K

OpeningφA

Ｈｍ

HPφA

C

B

OpeningφA

J K

34

FLAP GATE (F4 type, F5 type)◦ High corrosion resistance and water resistance due to

stainless steel material.◦High pressure resistance due to spherical surface.◦ Smooth opening/closing and high water tightness due to

the 2-fulcrum supporting of the arm.◦Minimizing dust adherence due to a few projections.◦Applicable to drainage gradient up to 5/100.

◦ Fixing with concrete Anchors requiring no blockouts in foundations (F4 type) or the band wound around the hume pipes (F5 type) (saving construction cost).

◦Requiring 100 mm hume pipe extrusion (F5 type).◦Water depth: Within 3.0 - 5.0 m (from pipe bottom) *1

FLAP GATE (F4 type)◦ Mount on the wall with concrete anchors with a rubber piece between the wall and the doorstop plate or provide waterproof treat-

ment to the outer circumference.

FLAP GATE (F5 type)◦ Cover the hume pipe outside with the band of the Flap Gate main body, and adhere the watertight rubber of the door body to

the cross section (wall thickness portion) of the hume pipe. (At this time, the doorstop constitutes the wall thickness portion of the hume pipe.) Then, fasten 2 bolts on the band side to ensure complete fixing.

FLAP GATE (F4 type)� (Unit: ㎜)Part No. A B C J K HF4-100 100 204 250 42 6 5F4-150 150 290 340 55 6 5F4-200 200 340 390 55 6 5F4-250 250 430 450 55 6 5F4-300 300 490 500 60 6 5F4-350 350 550 570 70 6 5F4-400 400 600 620 72 6 5F4-450 450 650 670 77 6 5F4-500 500 700 750 82 9 5F4-600 600 820 870 92 9 5F4-700 700 920 970 110 9 3F4-800 800 1020 1070 120 9 3F4-900 900 1160 1200 130 9 3F4-1000 1000 1260 1300 130 9 3

FLAP GATE (F5 type)� (Unit: ㎜)Part No. A B C J K HF5-200 200 200 220 57 20 5

F5-250 250 225 245 57 20 5

F5-300 300 250 270 62 20 5

F5-350 350 300 290 69 20 5

F5-400 400 350 310 74 20 5

F5-450 450 400 340 79 20 5

F5-500 500 400 400 89 15 5

F5-600 600 450 435 102 15 5

F5-700 700 500 485 112 15 3

F5-800 800 550 535 122 15 3

F5-900 900 780 600 129 15 3

F5-1000 1000 950 650 129 15 3

Installation guide

* For any sizes other than the above or non-fume pipes, consult with us.

*1 : Conformable to our simplified water gate design standard.

Feature

Specifications

FSERIES

I

G

F

A(Effective width)

C

E

H.W.L

2.5m

Wall surface

D

B(Effective height)

L M

35

FLAP GATESteel, stainless, (aluminum)

FLAP GATE (F6 type)

◦Separate into the doorstop and the door body to facilitate construction work (work with a standard open-end wrench).◦Smooth opening/closing and high water tightness due to the 2-fulcrum supporting of the arm.◦The door is available in two materials - steel (SS400) and stainless steel (SUS304).◦For door made of aluminum, consult with us.

FLAP GATE (F6 type) is prevents backflow in case of flooding or high water.

◦After mounting the doorstop on the concrete wall, hoist the door body with a hoisting bolt and fix it.◦�Set the doorstop directly in the blockout in the concrete wall or the form, insert it on welding anchors, and fix it by welding the an-

chors to bars.

◦�F6S : Stainless steel, F6T : Steel * For any sizes other than the above, consult with us.* �Design water depth : Within 2.5 m from pipe bottom (Conformable to our floodgate steep

pipe engineering standard)

FLAP GATE (F6 type)� (Unit: ㎜)

Part No. A B C D E F G H I L M

F6S

F6T

300 300 300 410 410 450 450 137 150 220 56 75

350 350 350 460 460 500 500 137 150 240 56 75

400 400 400 510 510 550 550 137 150 260 56 75

450 450 450 560 560 600 600 137 150 300 56 75

500 500 500 610 610 650 650 170 150 340 71 75

550 550 550 660 660 700 700 170 150 380 71 75

600 600 600 710 710 750 750 170 150 420 71 75

700 700 700 810 810 850 850 170 150 500 81 75

800 800 800 910 910 950 950 170 150 560 81 75

900 900 900 1010 1010 1050 1050 170 150 630 81 75

1000 1000 1000 1110 1110 1150 1150 170 150 690 81 75

Installation guide

Feature

Specifications

FSERIES

H

D

F

J

100～450 500～600

D

G18

4-φ13 anchor holeM10 Anchor

Water depth: Within 2.5 m 6-φ13 anchor holeM10 Anchor

Opening dia.:φA

Door body.:φB

Opening dia.:φA

Door body.:φ

B

Opening dia.:φA

Doorstop width:C

Waterproof rubber

DJ

H

F G18

Water depth: Within 2.5 mP-φ13 anchor holeM10 Anchor

Doorstop width:C

Doorstop width:B

Opening width: A

Opening height: ADoor body height: B

Waterproof rubber

Opening height: A

36

FLAP GATEAluminum, stainless, steel

FLAP GATE (F8 type)

F8 type (Square) F8 type (Without Doorstop)

◦ Simplified Flap Gate made of stainless steel, alumi-num or steel (round type, square type).

◦�High corrosion resistance (Aluminum and steel: Bak-ing finishing).

◦ Smooth opening/closing due to the 2-fulcrum support-ing of the arm.

◦Easy mounting with Anchor.◦Water depth: Within 2.5 m.◦Specifications without doorstop available on option.

FLAP GATE (F8 type/Circle)� (Unit: ㎜)Part No. A B C D F G H J

F8

MAMSMT

100 100 160 200 295 6 6 100 195150 150 210 250 345 6 6 125 220200 200 260 300 395 6 6 150 245250 250 310 350 445 6 6 175 270300 300 360 400 495 6 6 200 295

MA 350 350 410 450 545 8 6 225 320MS/MT 6 6MA 400 400 460 500 595 8 6 250 345MS/MT 6 6MA 450 450 510 550 645 10 6 275 370MS/MT 6 6MA 500 500 560 714 752 10 6 357 395MS/MT 6 6MA

600 600 660 830 86012 7

415 445MS 7 7MT 9 8

FLAP GATE (F8 type/Square)� (Unit: ㎜)Part No. A B C D F G H J P

F8

KAKSKT

100 100 160 260 310 6 6 125 185 4150 150 210 310 375 6 6 150 225 4200 200 260 360 425 6 6 175 250 4250 250 310 410 475 6 6 200 275 4300 300 360 460 525 6 6 225 300 4350 350 410 520 575 8 6 250 325 4

KA 400 400 460 570 625 8 6 275 350 4KS/KT 6 6KA 450 450 510 620 675 10 6 300 375 4KS/KT 6 6KA 500 500 560 670 725 10 6 325 400 6KS/KT 6 6KA

600 600 660 770 82512 7

375 450 6KS 7 7KT 9 8

* 700 - 1000 mm available on option.

* 700 - 1000 mm available on option.

Specifications

Feature

FSERIES

H

C

F

G

φA φJ

Water depth: Within 2.5 m

HP or the like

Door body.:φB

H.W.LC

F G

E

Water depth: Within 2.5 m

Opening dia.:φA

Door body.:φB

M10 All Anchor

37

FLAP GATEFLAP GATE (F9 type)

F10 type

FLAP GATE (F9 type)� (Unit: ㎜)Part No. A B C F G H J

F9M

AST

150 150 210 125 128 24 30 202200 200 260 175 164 24 30 254250 250 310 200 174 24 30 306300 300 360 225 194 24 30 360

A350 350 410 270 200

24 32414S 24 32

T 26 30A

400 400 460 295 22024 32

470S 24 34T 26 30A

450 450 510 320 23424 34

526S 24 34T 28 30A

500 500 560 345 24424 34

584S 24 34T 28 30A

600 600 660 395 28825 35

700S 27 33T 30 30

FLAP GATE (F10 type)� (Unit: ㎜)Part No. A B C E F G

F10MFN

75 75 160 200 195 6 18100 100 160 200 195 6 18150 150 210 210 220 6 18200 200 260 220 245 6 18250 250 310 230 270 6 18300 300 360 250 295 6 18350 350 410 255 320 8 18400 400 460 275 345 8 18450 450 510 290 370 10 18500 500 560 300 395 10 18600 600 660 350 445 12 18

FLAP GATE (F9 type)◦Fixing by wrapping the band directly around the extruded pipe.◦Requiring 110 mm or more pipe extrusion.◦Door body made of aluminum, stainless steel or steel.◦Water depth: Within 2.5 m

FLAP GATE (F10 type)◦Lightweight, corrosion-resistant door body made of FRP.◦Simplified type without doorstop, fixable directly to the concrete wall with anchors.◦Water depth: Within 2.5 m.

* Specify the pipe type. * 700 - 1000 mm available on option.

* Square type available on option. * 700 - 1000 mm available on option.

Specifications

Feature

Aluminum, stainless, steel

FSERIES

A

φC

φB

Existing PVC pipe

38

FLAP GATEPVC

FLAP GATE (FU type)

FLAP GATE (FU type)� (Unit: ㎜)Part No. A B C

FU-50U 67 70 56

FU-65U 75 76 71

FU-75U 86 93 83

FU-100U 100 128 107

FU-125U 140 155 131

FU-150U 160 170 154

FU-200U 210 220 202

FLAP GATE (FU type)� (Unit: ㎜)Part No. A B C

FU-50P 73 70 51

FU-65P 77 79 67

FU-75P 93 93 77

FU-100P 107 118 100

FU-125P 97 128 125

FU-150P 135 170 146

FU-200P 210 221 194

◦Capable of preventing the backflow in sewage pipes and rainwater pipes due to localized concentrated heavy rain.◦ Insertion into existing PVC pipes and adhesive fixing.◦Lightweight and high corrosion resistance.◦Also applicable as an odor backflow preventive valve.

* The specifications vary according to the size. * For any size other than the above, consult with us. * The specifications vary according to the size.��* For any size other than the above, consult with us.

Specifications

Feature

39

FLAP GATE (FA type)

FLAP GATE (F6A type)

FLAP GATE (F7 type) Fully openedFLAP GATE (F7 type) Fully closed

(Unit: ㎜)Part No. SizeFA 100 ～1000

(Unit: ㎜)Part No. Door body material SizeF6AT SS400

300 ～ 1000F6AS SUS304

FLAP GATE (FA type)◦Fixing with Anchors requiring no blockouts in foundations.◦Lightweight door body and doorstop made of aluminum.◦ Smooth opening/closing and high water tightness due to the

2-fulcrum supporting of the arm.

FLAP GATE (F7 type)◦ Lateral opening of natural (hydraulic) opening/closing type to

prevent backflow.◦The door body is available in two materials: steel and stainless steel.◦ To be designed and manufactured according to the on-site

conditions.

* For any size other than the above, consult with us.

* For any size or water depth other than the above, consult with us.

Other Gates

FLAP GATE (F6A type)◦Fixing with Anchors requiring no blockouts in foundations.◦The door body is available in two materials: steel and stainless steel.◦ Smooth opening/closing and high water tightness due to the

2-fulcrum supporting of the hoisting metal link.◦Design water depth: 2.5 m from pipe bottom.

40

GSERIES

For G-125 ‒ G-150 screw

Valve seat

Rubber valve

Socket

φB

E

L(Wall thickness)

φBφB

φCφD

E

◦Main�body

◦Valve

41

WEEP HOLEWEEP HOLE

WEEP HOLE� (Unit: ㎜)Part No. B C D E L

G-30 38 43 51 20

Size to your

specification

G-40 48 56 60 22

G-50 60 67 74 25

G-65 76 83 89 35

G-75 89 100 106 40

G-100 114 125 134 50

G-125 140 151 ― 65

G-150 165 178 ― 80

◦Applicable to both side wall and bottom.◦The valve of add-on type facilitates the construction of the main body.◦ The length of the main body (using VP pipe) is adjustable to

the wall thickness.◦ The socket of the main body is ribbed, providing excellence

in fitting in concrete and waterproofness.◦ The steel plate contained in the rubber valve prevents the valve

body from being warped and maintains the waterproof effect.

◦No trouble in the valve due to its simply structure.◦ High resistance to heat, cold and corrosion due to synthetic

rubber used for the valve body.◦ The valve can be easily detachable from the valve body. It

can be replaced effortlessly in case of breakage.◦Easy fabrication of a gradient cover according to the wall gradient.

* For Weep Hole for Existing Pipes, refer to P. 45.

WEEP HOLE is used to reduce uplift pressure in rivers, reservoirs and water channels.Generally, removal of seepage water or subsurface water around concrete channel would be required, otherwise channel would be floated by the water uplift pressure causing cracks to the structure.WEEP HOLE effectively discharges seepage water or subsurface water without underground soil into the channel, on the other hand, when the channel water level rises, rubber valve of WEEP HOLE closes by cause of water pres-sure preventing channel water from seeping in underground.There are various types of WEEP HOLE (G, GD, GI, GS, GP, GH and GT) depending on the condition being ap-plied at the side wall or bottom of the water channel.

Specifications

Feature

Sidedrain

Cap Filter

Catchment filterUnderdrain

Weep Hole

Weep Hole with gradient cover

Gradient cover

Filter with synthetic sheet

Water depth cm

G-100

G-75

G-50

G-40

■ Drainage volume test values

GQF�Weep�Hole�with�Filter

Specifications�of�gradient�coverCross-section�view�of�GQF

Weep�hole�for�side�slop�is�also�available�on�option

42

Q1 type Cap Filter Q6F type Fiber Cap (Flat type) Q4 type Catchment Filter Q7A type Wave Filter

❶�Water channel with concrete cast on site - Hoist the main body by a separator and work it into the form. Cast concrete in the frame, and then fit in the valve.

❷�Water channel as a secondary concrete product - Cast the main body together with the concrete product at the factory, or make a hole larger than the main body outside diameter at the factory, and mount the main body by mortar caulking and fit in the valve on site.

❸ Block lining (stone masonry) - Mount the main body to the block taking the depth as the main body length, and then fit in the valve.

Installation guide

Installation

Using the filter parts for the side opposite to valve of Weep-Hole would be recommended.

GSERIES

Valve screwFor GD-125 ‒ GD-150

Valve seat

Ribbed socketRubber valve

φAφC

φD

E

F

43

WEEP HOLEWEEP HOLE (GD type)

WEEP HOLE (GDL type)

WEEP HOLE (GD type)� (Unit: ㎜)Part No. A C D E F

GD-30 36 43 51 20 43

GD-40 42 56 60 22 47

GD-50 55 67 74 25 53

GD-65 73 83 ― 35 73

GD-75 83 100 106 40 84

GD-100 106 125 134 50 104

GD-125 131 151 ― 65 134

GD-150 154 178 ― 80 164

If subsurface water level is high, concrete water channels and reservoirs may be floated by the water uplift pressure of the subsurface water, causing cracks or float to the concrete portion. This is where the underdrain construction method or the sidedrain construction method is employed, and WEEP HOLE is used to prevent backflow at the drain outlet. WEEP HOLE is available in two types: GD and GDL.

◦No trouble in the valve due to its simply structure.◦Synthetic rubber make free from rusting allows semi-permanent usage.◦�The steel plate contained in the rubber valve prevents the valve

body from being warped and maintains the waterproof effect.◦No damage to the valve that is fit in after construction.◦Easy repair of the rubber valve.◦Easy construction work.◦ Set the valve screw on the upstream side when use for bottom

(GD type).◦ Stainless steel specifications available on option for the elbow

of the GDL Weep hole main body.

* Ribbed socket is not available to GD-65, 125 or 150.

Specifications

Feature

Elbow

φBφC

K

Rubber valve

Valve seat

φAφB

φC

For GDL-125 ‒ GDL-150

Water flow

Filter with synthetic sheet

Water flow

Water depth cm

GD-100

GD-75

■ Drainage volume test values

WEEP�HOLE�(GD�type) WEEP�HOLE�(GDL�type)

44

WEEP HOLE (GDL type)� (Unit: ㎜)

Part No. A B C K

GDL-40 42 48 54 49

GDL-50 55 60 67 58

GDL-65 73 76 83 77

GDL-75 83 89 97 88

GDL-100 106 114 124 112

GDL-125 131 140 151 140

GDL-150 154 165 178 168

Decide the mounting interval of Weep hole in relation to the suction pipe according to the gradient of the suction pipe. Also, decide the diameters of the pipe and Weep hole accord-ing to the seepage water volume. Provide an adequate perme-able layer of sand, gravel around the suction pipe.

❶�Attach a PVC T-tube to the specified location of the suction pipe, and attach Weep hole by using a PVC short tube.

❷�Reinforce GDL with concrete for protection. (This is not required for stainless steel GDL.)

Installation guide

Installation

GSERIES

φA

Existing PVC tube

L

φC

with synthetic sheet

Weep Hole for Inserts

Existing PVC tube Filter Q6F

GIU

45

WEEP HOLE (Insert type)WEEP HOLE (Insert type)

WEEP HOLE (Insert type)� (Unit: ㎜)Part No. A C L Applicable pipe

GIP-40 36 40 20 VP-40

GIU-40 36 44 20 VU-40

GIP-50 42 51 25 VP-50

GIU-50 42 56 25 VU-50

GIP-65 55 67 28 VP-65

GIU-65 55 71 28 VU-65

GIP-75 74 78 41 VP-75

GIU-75 55 83 28 VU-75

GIP-100 83 100 44 VP-100

GIU-100 83 107 55 VU-100

WEEP HOLE (Insert type) is applicable to existing drainage pipes.

◦Easy mounting in existing drainage pipes (by way of adhesion).◦No trouble in the valve due to its simply structure.◦High resistance to heat, cold and corrosion due to synthetic rubber used for the valve body.◦The steel plate contained in the rubber valve prevents the valve body from being warped and maintains the waterproof effect.

* The specifications vary according to the size.

Specifications and Installation

Feature

GSERIES

Z ZRubber valve

L

φA

φB

Filter B

Filter A

Screen filter Z-Z

tube withperforationHard PVC tube Hard PVC tube

Water flow Water flow

Water channel Water channel Secondary concrete Secondary concrete

Q6F filter

Type 1 Type 2

Weep Hole with ScreenWeep Hole with Screen

46

WEEP HOLE (with Screen)WEEP HOLE (with Screen)

WEEP HOLE (with Screen)� (Unit: ㎜)

Part No. A B L

GF-40 60 48 98

GF-50 76 60 110

GF-75 106 89 173

GF-100 134 114 212

GF-125 151 140 282

GF-150 178 165 342

◦Three-layer discrete type filter structurally insusceptible to sand and dirt.◦Replaceable filter.◦Best suited to bottom on which mud quickly deposits in water channel.◦Easy cleaning of water channels due to a few projections from bottom.

WEEP HOLE with Screen reduces the uplift pressure of subsurface water in water channels and balancing reservoirs. WEEP HOLE with Screen can efficiently discharge seepage water and spring water to prevent the float of the sheets of concrete water channels and balancing reservoirs. If the internal water level rises, the rubber valve closes under water pressure to prevent seep-ing into subsurface. WEEP HOLE with Screen can also effectively prevent the back side from being scoured.

* The specifications vary according to the size.

Specifications

Feature

Construction ExampleInstallation

GSERIES

Rubber valve Filter pipe Pile end cap

φAφD

F

L1(Wall thickness) L2(Perforation)

L

47

WEEP HOLE (for Concrete wall) GH1 type

WEEP HOLE (for Concrete wall) GH1-50・75

WEEP HOLE (for Concrete wall) GH1 type� (Unit: ㎜)

Part No. A D FL

L1(Wall thickness)

L2(Porous length)

GH1-40 42 60 47

Siz

e to

you

r sp

ecifi

catio

n

140

GH1-50 55 76 53 140

GH1-75 83 106 84 200

If existing water channels are cracked or may be floated due to seepage water from the back side, Piling type WEEP HOLE is intensively used to solve this problem.

◦ Simple construction only by piling the pointed top into water channel bottom (side wall).

◦Using the filter pipe *(1) for the catchment section.◦ The steel plate contained in the rubber valve prevents the valve

body from being warped and maintains the waterproof effect.◦No damage to the valve that is fit in after construction.◦Easy replacement and repair of the valve.

*(1) Filter pipe is made of synthetic fiber (common to GH1 and GH2).

Specifications

Feature

WEEP HOLE (for Concrete wall)WEEP HOLE (for Sheet piling)

Pile end cap

φAφJ

F L2(Perforation)L

φK

E

Hook boltSheet pileCaulking

Rubber valve

Main body

Filter pipe

Concrete wall Sheet pile

GH1 GH2

48

Installation

WEEP HOLE (for Sheet piling) GH2 type� (Unit: ㎜)

Part No. A E J KL

F L2

GH2-40 42 6 110 140 55 140

GH2-50 55 6 110 140 55 140

GH2-75 83 40 150 180 84 200

WEEP HOLE (for Sheet piling) GH2 type WEEP HOLE (for Sheet piling) GH type

■ Set up for concreteDetermine the mounting position, or drill a hole.Pile the main body, and fill the space with concrete or mortar.Clean the socket, and fit in the valve.

* “φJ” indicates the dimensions of hole making in steel sheet pile.

■ Set up for sheet pileDetermine the mounting position, drill a hole, and remove burrs.Pile the main body, fasten the nut so that the main body plate can adhere to the steel sheet pipe, and provide caulking.Clean the socket, and fit in the valve.

Installation guide

GSERIES

φAφB φC φD

F H

E

Stainless steel cover

Presser ring Nut

Rubber valve

Valve seat

GP-50 with sheet □500

49

WEEP HOLE (for Sheet)WEEP HOLE (for Sheet)

WEEP HOLE (for Sheet) GP type� (Unit: ㎜)

Part No. A B C D E F H

GP-50 48 53 75 100 33.5 13 6

Seepage control sheets (soft PVC, rubber) are frequently used for river banks, storage reservoirs and balancing res-ervoirs. However, a problem is how to eliminate uplift pressure due to subsurface water, spring water or remaining air. To solve this problem, we have newly developed WEEP HOLE for Sheet.WEEP HOLE for Sheet is composed of a stainless steel cover, a presser ring, a rubber valve and a screw type main body (synthetic resin). Since the structure is so simple, WEEP HOLE for Sheet is robust free from trouble. Also, WEEP HOLE for Sheet is so small and light, it can be mounted directly on sheets. When WEEP HOLE for Sheet is used together with a drain pipe or an air vent valve, safety can be furthered. For the amount of “weight” for prevent-ing the float of sheets, refer to the calculation formula described later. Thus, WEEP HOLE for Sheet ensures the safety of bank bodies, and substantially reduces the construction labor and cost.

◦No trouble in the valve due to its simply structure. ◦Can be mounted on seepage control sheets of up to 10mm thick.◦ Unnoticeable contour after mounting on seepage control

sheets in storage reservoirs due to the thinness.◦ Easy mounting on seepage control sheets without using nay

special mechanical tools.◦Durable semi-permanently due to synthetic rubber and stainless steel.

* Specify the sheet material.

Specifications

Feature

Weep Hole for Sheets

Seepage control sheet Crushed stones

Revetment blocks

Weep Hole for Sheets

Main sheetWelding/bonding plane

Adhesion sheetBond

Subsurface water or air

Ground

Weep Hole for Sheets

Crushed stones

Revetment blocks

Crushed stones

Seepage control sheet

Weep Hole for Sheets

Bank

Weep Hole for Sheets

Slope top

Sheets

Weight

Weep Hole for Sheets

Crushed stones

PumpPressure gauge

Weep Hole

Right triangle dam

Right triangle dam

B

D

h

Water head H (m)

Dra

inag

e flo

w ra

te (Q

/min

)

90°

140

130

120

110

100

90

80

70

60

50

40

30

20

10

70 1 2 3 4 5 6 8 9 10 11

■ Drainage volume test value (Aichi Agricultural Research Center)

◦Hydraulic characteristics of Weep Hole for Sheets

Slope

Storage reservoir, balancing reservoir

Detail

Detail

50

Installation

❶�Make a hole of approx. φ54 in the sheet, apply bond to between the upper and lower presser rings and the sheet, and fasten the resin nut.

❷�After construction with existing sheet or new sheet, cut off the sheet by approx. □300, pave crushed stones there, and mount GP-50 with sheet □500.

Installation guide

GSERIES

Caulking Sheet Piles

SUS hook bolt

Rubber valve

Filter

φAφJφK

EF

51

WEEP HOLE (for Sheet piling)WEEP HOLE (for Sheet piling)

WEEP HOLE (for Sheet piling)� (Unit: ㎜)

Part No. A E F J K Supplementary note

GS-40 42 6 55 110 140

For o

ther

dim

ensio

ns,

refe

r to

the

spec

ificat

ions

of G

type

.

GS-50 55 6 55 110 140

GS-75 83 40 84 150 180

GS-100 106 50 104 180 225

Recently, the sheet pile construction method has been increasingly utilized for water channel revetment, etc. in the soft ground area. However, WEEP HOLEs and drain pipes used for this method have not yet been popularly used, and the back pressure is left unmitigated. When water treatment is provided to this backland, the back pressure can be mitigated, and the ground can be stabilized. In order to prevent disaster due to the moistening phenomena at the backland, we have developed WEEP HOLE for Sheet Piling.

◦Easy mounting from the front side of sheet piles.◦Stabilizing structural objects and preventing disasters.◦Easy construction, saving machine use.◦Requiring an extremely small drilled area for construction.

◦ The steel plate contained in the rubber valve prevents the valve body from being warped and maintains the waterproof effect.

◦Easy replacement and repair of the valve.

◦Drill a hole to the approximately φJ in the sheet pile.◦Refine the drilled portion on the water channel side.◦ Apply bond or caulking agent to the joint surface between the

sheet pile and the main body plate, orient the mark on the hook bolt head to the outside, and fasten the butterfly nuts for fixing.

Specifications

Feature

Installation guide

GSERIES

φA φB

φCFilter pipewater swell seal PVC pipeO-ring CapConnect socket

F:Lining length (Wall thickness) L:Filter length

φA φB

φCFilter pipePVC pipeO-ringbackflow preventive valve CapConnect socket

φC

F:Lining length (Wall thickness) L:Filter length

φA φB

φCFilter pipeConnect socketPVC pipeO-ring

F:Lining length (Wall thickness) L:Filter length

Cap

Weep Hole for Tunnels◦Installation

◦Standard�specifications

◦Specifications�of�with�backflow�preventive�valve

◦Optional�specifications(with�water�swell�seal)

(Valve�attached)

52

WEEP HOLE (for Tunnel)WEEP HOLE (for Tunnel)

WEEP HOLE (for Tunnel)� (Unit: ㎜)

Part No. A B C F L

GT-25 32 32 40 As specified 460

Since the outside hydraulic pressure working on tunnels has a critical impact over the stability of their structures, it should be alleviated upon occurrence. For this purpose, WEEP HOLE for Tunnel (without valve) is mounted in the tunnel arch portion. For mounting WEEP HOLE under the design water surface in tunnels, WEEP HOLE for Tunnel (with valve) is used.

◦�Weep Hole for Tunnel (without valve) is integrally consists of a water permeable pipe filter having an inside diameter of 26 mm and an outside diameter of 32 mm and a PVC pipe VP25 (Q = lining length).

◦�Weep Hole for Tunnels is inserted into a wall hole pre-bored to approx. 50 mm, made water-tight with an O-ring, and filled with a sealing agent at the surface area for finishing. *Specify the lining length in your order sheet.

Feature

Specifications

* On-site mounting work can be saved.

JSERIES

One Touch Joint

Water pressuredirection

Wall thickness

Drain basin

14°

Pipe insertingdirection

Drainage channel

Channel ridge

Concrete wall construction Drain basin construction

PVC pipe, φ150

Drain pipeDrain pipe

One Touch Joint

D (6)

Cross section ofstandard item

Cross section ofoptional attachment

L (Wall thickness)

Pipeinsertingdirection

Rubber packing

Rubber spacerMain body Adjustment pipe

φAφA

φCφB

53

ONE TOUCH JOINTModel JA: ONE TOUCH JOINT

Plastic product

If the ONE TOUCH JOINT is installed in a concrete wall, it can be connected easily to PVC pipe. It also provides better water cutoff and adaptability to sloped drainage.

Structure of JA-150

◦One touch joint saves time and labor because the work is finished just by inserting it, without secondary processing by motor, etc.◦Special form of rubber packing provides better water cutoff and allows connecting to sloped PVC pipe. (Max. drain slope: Up to approx. 14°)◦ Thickness of main body can be adjusted to thickness of various concrete walls of waterway, pit, etc.

Installation view

Model JA: ONE TOUCH JOINT� (Unit: ㎜)Part No. A B C D

JA-150 216 174 152 52

Part No. L�(Optional) Applicable�pipe�(PVC�pipe)

JA-150 Specifieddimensions VP・VU-150

Example of construction

Example of construction

Features

Specification

JSERIES

φAφB φC

D

(L)

54

Model JD: CAP FOR STEER BAR

CAP FOR STEER BARPVC product

CAP FOR STEER BAR is used as casing pipes for reinforcement steel at expansion/contraction joints in the trans-verse direction of concrete structure.

Model JD: CAP FOR STEER BAR� (Unit: ㎜)Part No. A B C D L Adaptive�steel�bar

JD-16 29 22 16 33

Spe

cifie

d dimen

sion

s

D-13・RB-13

JD-20 33 26 20 38 D-16・RB-16

JD-25 40 32 25 44 D-19、22・RB-19、22

JD-30 46 38 31 48 D-22、25・RB-22、25

JD-40 57 48 40 59 D-28、32・RB-29、32

* Thick wall main pipe and cap are used.* Reinforcement steel is excluded.

Specification

KSERIES

Handle

Screw stopper

Internal cylinder

External cylinder

Drain pipe

Rubber plug

Collecting pipe

X (Standard dimension: 1,500)

X

Flow

55

UNDERDRAIN PLUG (K1C type)

UNDERDRAIN PLUGPlastic product

UNDERDRAIN PLUG (K1C type) have been developed for adaptation to local requirements, purposes, etc. during construction of culvert drainage.

UNDERDRAIN PLUG (K2 type)SCREW CAP VALVE for polyethylene pipe (K4P type)Model K1CJS: Conversion socket for polyethylene pipe HANDY ROTARY VALVE (K3 type)

SCREW CAP VALVE for polyethylene pipe (K4 type)

◦Light, resistant to corrosion and watertight structure.◦��Select a product depending on place of application.◦ Lock pipes capable of adjusting the groundwater level free-

ly are also produced in order to provide optimum ground-water for crops.

UNDERDRAIN PLUG (K1C type)� (Unit: ㎜)

Part No. External�cylinder Internal�cylinder Collecting�pipeDrain�pipe

External�cylinder�length�X

K1C-50VU-65 VP-30

VU-50～

VU-65

Spe

cifie

d dimen

sion

s

K1C-65

K1C-75 VU-75 VP-30 VU-75

K1C-100 VU-100 VP-30 VU-100

K1C-125 VU-125VP-30

VU-125

K1C-150 VU-150 VU-150

UNDERDRAIN PLUG (K1C type)◦��Underdrain plug is used where the level difference is relatively small be-

tween the drainage channel and the surface of paddy field and the drain outlet is located deep in the ground.

Conversion socket for polyethylene pipe��Model K1CJS (for straight pipe) Size　50·60·65·75·100·125·150Model K1CJW (for double pipe) Size　50·65·75·100·150

Specification

Features

Screw stopper

External cylinder

Internal cylinder

X (Standard dimension: 1,400)

Upstreamculvert pipe

X

Y Downstreamculvert pipe

Collapsible lever

Side face

Socket

Delivery outlet

E

B C B D

φA

Cross sectionBore Thumbscrew

Discharge outlet of external cylinder

Square outlet of internal cylinderLength is 1/4 of circumference.

φA

９０°

ChainRubber packing

A

E

φＦφＤφＣφＢ

56

UNDERDRAIN PLUG (K2 type)� (Unit: ㎜)

Part No. Externalcylinder

Internalcylinder Drain�pipe Min.�

fall�head�YExternal�cylinder�

length�X,�Y

K2-50 VU-50 SU38×42 VU-50 90

Spec

ified

dim

ension

s

K2-75 VU-75 VU-50 VU-75 140

K2-100 VU-100 VU-65 VU-100 180

UNDERDRAIN PLUG (K2 type)◦��Level of groundwater can be elevated as required, at a field where levels

are different among respective cultivating blocks.◦��It is used where there is a large difference in the levels of drainage chan-

nel and surface of paddy field.

HANDY ROTARY VALVE (K3 type)� (Unit: ㎜)

Part No. A B C D E Bore�cross�section Note

K3-50 88 10 30 43 50 2250Standard of this product is 75. Any other is connected

using a unique socket.

K3-65 88 10 30 43 50 2250

K3-75 88 10 30 43 50 2250

SCREW CAP VALVE (K4 type)� (Unit: ㎜)

Part No. A B C D E F

K4-50 50 67 60 50 16 75

K4-65 63 84 76 67 18 91

K4-75 76 97 89 78 20 107

K4-100 90 124 114 101 22 136

K4-125 112 152 141 125 25 166

K4-150 132 180 166 146 28 192

K4-200 243 238 217 194 32 245

VALVE◦��Valve is used to drain groundwater or fill surface water in cultivating

blocks at an expanded farmland after a rain.◦��Valve has been developed particularly for use within one’s reach at a

shallow water channel.◦��There are the following two types of plug.

■ HANDY ROTARY VALVE◦��Handy rotary valve adjusts the delivery outlet area of main body continu-

ously by means of external cylinder like a band.◦��It can be connected easily to a collecting pipe owing to its socket structure.

■ SCREW CAP VALVE◦��Screw cap valve can be fully opened or closed by turning the cap in-

stalled at the end of collecting pipe.◦��Cap is connected with a chain not to lose.◦��K4P type is a conversion use for polyethylene pipe. (50-150)

NSERIES

4-φ11 hole (Exclude N-250)

EＤ

φＡ

φＣ

φＢ

(3-φ11 hole, N-50)

Stainless steel chain

Stainless steel anchor

57

Model N: TAMEIKE-SEN (water intake plug)

TAMEIKE-SEN (water intake plug)Bronze product

TAMEIKE-SEN (water intake plug) is used to take water from agricultural basin, reservoir, regulating reservoir, etc.

◦Trouble-free simple structure for easy opening and closing.◦Service life is semi-permanent because it is made of bronze.

◦��It is connected to steel pipe via flange.(Exclude N-250)

Model N: TAMEIKE-SEN (water intake plug)� (Unit: ㎜)

Part No. A B C D E

N-50 50 64 122 40 48

N-75 75 93 177 40 48

N-100 100 118 196 40 48

N-125 125 145 224 50 60

N-150 150 168 246 60 75

N-200 200 218 284 70 80

N-250 250 269 320 80 90

* It has a 1.5 m stainless steel chain and an anchor.* C shows the max. O.D.* A parts of shape is different on size

Features

Specification

Sediment discharge door

Stairs

Sloped gutter

Intake plug

Operating chain

Vent

Stairs Old dike

Planned dike

Retaining wall

Drain pipe

Cutoff wall Bottom gutter

H・W・L

A-A

B-B

B

B

A

A

58

Installation

Installation view

◦��Install it oriented upward and along the angle of slope face, and line the gate sheet section (by approx. half) with concrete.

OSERIES

A

B

59

Model O: HOLE COVER

HOLE COVERPlastic product

HOLE COVER hides the drain pipe hole on the retaining wall and also serves as drain pipe, without spoiling scenic beauty.

Before construction After construction

◦��Hole cover prevents mischief such as disposal of stones, empty cans or bottles.

◦��It suppresses growth of weeds even if sediment accumu-lates in the pipe.

◦��Service life is semi-permanent because it is made of syn-thetic resin.

◦��It can be installed even after construction.◦��It can be attached easily with bond.

◦Bore area is larger than 1/3 of the cross section of pipe.

Model O: HOLE COVER� (Unit: ㎜)Part No. A B Applicable�pipe

O-75 70 37 VP・VU-75

* Color may be specified if the lot of order is 3,000 pieces or more.

Specification

Features

PSERIES

Connecting pipe

PIT VALVE

Connecting pipe

Pit (Hand hole or common conduit)

(Specified dimensions)L

C

φA

φB

60

PIT VALVEModel PA: PIT VALVE

Plastic product

PIT VALVE permeates water coming in the pit embedded in the ground (hand hole for information BOX, common conduit, etc) into the ground, and prevents intrusion of groundwater or sediment.

◦��Pit valve prevents reverse flow into the pit even when the level of groundwater is higher.

◦ Intrusion of sediment, or other, is prevented by a filter.◦��Length of main body is adaptive to the wall thickness of pit.

◦��Ribbed socket section of main body provides better fit to concrete and excellent cutoff property.

◦��It can be installed even after construction.◦��It can be covered in an emergency with the attached cutoff cap.

Model PA: PIT VALVE� (Unit: ㎜)Part No. A B C L

PA-50 74 68 60(Specified dimensions)

PA-75 106 96 90

* It may not be able to permeate into the ground depending on the level of groundwater.

Features

Specification

61

FILTER (Q1 type)

FILTERPlastic product

FILTER (Q1~Q6 type) prevent clogging in drain pipes on concrete retaining wall, block stoning or stone masonry, and maintain the draining function effectively.

FILTER (Q6 type)

FILTER (Q3 type)

FILTER (Q6F type)

FILTER (Q4 type)

◦��Optimum filters may be selected depending on require-ments, such as soil property, coefficient of permeability, conditions of hinterland, etc.

◦��Prevents clogging at the water absorbing sections, assuring effective maintenance of draining effect and prevention of effluence of earth particles.

◦��It can be installed just by inserting in a pipe.◦��It has a form to ensure an excellent withstanding strength

against earth pressure.

Q6F-40~100products are

made of recycled materials.

Features

●Ｑ6Ｆ-40～100

●Ｑ6Ｆ-30/125/150

Ｔ(Unwoven fabric)

Ｔ(Unwoven fabric)

φA

φA

Ｂ

Ｂ

φAφC

B

φD φC

B A

φD φC

B A

φAφC

B

Production range covers φ125-250. (Profiles may vary because they are hand-made.)

62

Q6F-40~100 products are made of recycled materials.

FILTER (Q1 type)� (Unit: ㎜)Part No. A B C Applicable�pipe

Q1-40 52 25 37 VP・VU-40

Q1-50 65 30 48 VP・VU-50

Q1-65 81 34 63 VP・VU-65

Q1-75 96 38 72 VP・VU-75

Q1-100 123 45 94 VP・VU-100

FILTER (Q6F type)� (Unit: ㎜)Part No. A B T Applicable�pipe

Q6F-30 35 23 20 VP-30

Q6F-40 54 37 10 VP・VU-40

Q6F-50 68 37 10 VP・VU-50

Q6F-65 78 49 20 VP・VU-65

Q6F-75 96 47 10 VP・VU-75

Q6F-100 125 47 10 VP・VU-100

Q6F-125U 137 28 20 VU-125

P 135 47 20 VP-125

Q6F-150U 166 47 20 VU-150

P 156 47 20 VP-150

FILTER (Q3 type)� (Unit: ㎜)Part No. A B C D Applicable�pipe Note

Q3-40 80 40 60 39-44 VP・VU-40

Q3-50 80 40 71 51-56 VP・VU-50

Q3-75 120 40 120 77-83 VP・VU-75

Q3-100 120 40 120 100-107 VP・VU-100

FILTER (Q6 type)� (Unit: ㎜)Part No. A B C Applicable�pipe Note

Q6-40 52 25 37 VP・VU-40

Q6-50 65 30 48 VP・VU-50

Q6-65 81 34 63 VP・VU-65

Q6-75 96 38 72 VP・VU-75

Q6-100 123 45 94 VP・VU-100

Unwo

ven fabric

is us

edUnw

oven

fabric is

use

d

● For the table of adaptive conditions for each filter (Reference), soil property and coefficient of permeability, see Page 64.

FILTER (Q4 type)� (Unit: ㎜)Part No. A B C D Applicable�pipe

Q4-40 80 40 60 39-44 VP・VU-40

Q4-50 80 40 71 51-56 VP・VU-50

Q4-75 120 40 120 77-83 VP・VU-75

Q4-100 120 40 120 100-107 VP・VU-100

Specification

ＱIP-50

L

φＡ

Insert socket

Unwoven fabricDrain trap

Existing PVC pipe

φＢφＣ

* Profile may vary depending on sizes.

63

FILTER (Insert type)

FILTER (Insert type)Plastic product

FILTER (Insert type) prevents washout of sediment through drain pipes on concrete retaining wall after local severe rain, or other. This is a retro-fit type filtering material attachable to existing PVC pipes.

◦��Its water cutoff effect is magnificent.◦��To install, apply bond to the main body and insert it in the

pipe. It is easy to insert and assures reliable installation.

◦��Excellent pressure withstanding strength.◦��Unwoven fabric made of synthetic fiber is used for the filter.

Example of installation

Model QI: FILTER (Insert type)� (Unit: ㎜)Part No. A B C D Applicable�pipeQIP-40 36 40 ― 20 VP-40

QIU-40 36 40 44 20 VU-40

QIP-50 42 48 51 25 VP-50

QIU-50 42 48 56 25 VU-50

QIP-65 55 60 67 24 VP-65

QIU-65 55 60 71 27 VU-65

QIP-75 55 60 77 28 VP-75

QIU-75 55 60 83 28 VU-75

QIP-100 83 89 100 39 VP-100

QIU-100 83 89 107 51 VU-100

Specification

Features

64

Adaptive conditions (Reference): Soil property and coefficient of permeability

Coefficient of permeability

K (cm/sec)102 101 0 10-1 10-2 10-3 10-4 10-5 10-6 10-7 10-8 10-9 Note

Coefficient of property Very good Good Not good Very bad

State of soil property Clean gravel

Clean sand,Sand mixedwith gravel

Fine sand, organic and inorganic silt, mixture of

sand and silt clay, clayey deposited soil

Imper-meable

soil,Deep clay layer

Impermeable layer endured the growth ofplants and weathering

(1) The soil property and the coeffi-cient of permeability are quoted from the “Method for Lowering Groundwater Level”, reported by Messrs. Matsuo and Kono.

(2) It should be noted that ap-plicable filters are determined based on the stability of struc-ture (walls, mainly) and miscella-neous conditions of back-face.

Type Spring water amount Optimum soil property Soil property adequate to

some extent Back-slope environment

FILTER (Q1 type) Less Silt,　fine sand,　clay layerPermeable layer is produced using crushed stones, etc.

FILTER (Q3 type) Much Clean sand,clean gravel, sand Silt layer, fine sand, clay layer

FILTER (Q4 type) Much Silt layer, fine sand, clay layerPermeable layer is produced using crushed stones, etc.

FILTER (Q6 type) Less Clean sand, clean gravel, sand Silt layer, fine sand, clay layer

■ Record of the strength of FILTER (Q1 type) ■ Record of the strength of FILTER (Q7 type)

◦Reference data of Q series filters

F

DG C B

φE φA

Wave sheetCenter cap Unwoven fabric Joint

* Slope is MAX 1: N.

65

FILTER (Q7A type)

FILTER (Q7 type)Plastic product

FILTER (Q7 type) is a sheet type draining material which can be installed easily. It drains groundwater smoothly and stabilizes structures such as concrete retaining wall, water channel, etc.

◦��Installation is simple and reliable.◦��It processes draining from back-face excellently.◦��Water is drained quickly owing to its larger collection area.◦��It has a higher compressive strength of 25 tf/m2.

◦��It can be attached easily to drain pipe firmly, even in sloped condition . (Refer to N value.)

◦��Core is made totally of recycled material (PP).

FILTER (Q7A type)� (Unit: ㎜)Part No. A B C D E F G N Applicable�pipe

Q7A-40 52 3720 16 149 300 300

0.5 VP・VU-40

Q7A-50 63 38 0.5 VP・VU-50

FILTER (Q7A type)� (Unit: ㎜)Part No. A B C D E F G N Applicable�pipe

Q7A-6593 38 20 16 149 300 300

0.3 VP・VU-65

Q7A-75 0.5 VP・VU-75

* Sizes other than 300 are available for the dimension G.

Features

Specification

Detail of mounting section and water flow

Drain pipe VP, VU

Wave filter

MAX 1 : N

Concrete retaining wall

Installation on sloped face

DG C B

φA

Wave sheetCenter cap Unwoven fabric Joint

φEF

* Slope is MAX 1: N.

Filter made of unwoven fabric

Filter made of unwoven fabric

Pored (Q7A)

Polypropylene

66

Installation view

Manufacturing structure

Structure of FILTER (Q7 type) Cross section of wave sheet

FILTER (Q7C type)� (Unit: ㎜)Part No. A B C D E F G N Applicable�pipe

Q7C-40 52 3720 16 149 300 2000

0.5 VP・VU-40

Q7C-50 63 38 0.5 VP・VU-50

FILTER (Q7C type)� (Unit: ㎜)Part No. A B C D E F G N Applicable�pipe

Q7C-6593 38 20 16 149 300 2000

0.3 VP・VU-65

Q7C-75 0.5 VP・VU-75

* Sizes other than 2,000 are available for the dimension G.

RSERIES

φ200 pored pipe

Roof Drain FilterRoof Drain Filter

Elevated bridge Elevated bridge

Elevated railway bridge

φCφD

φE

A

B

Roof Drain Filter

φCφD

A

B

67

Model R100: ROOF DRAIN FILTER

ROOF DRAIN FILTERPlastic product

Model R150: ROOF DRAIN FILTER

Rainwater fell on elevated bridge is drained through PVC down-pipes, which are provided at both side of bridge, to the ground. ROOF DRAIN FILTER has been developed to prevent floating objects from entering or clogging the drain outlets or to be used as the roof drain.

Installation view

◦��Roof drain filter has excellent resistance to corrosion because it is made of synthetic resin.

◦��Simplified installation.◦ This product has been developed for better cost performance.◦ The drain shows excellent sturdiness against external pressure ow-

ing to its arched profile at the top.◦ It is formed to keep away fallen leaves, torn pieces of vinyl sheet, etc.◦ It can be connected easily also to pipes made of PVC, polyethyl-

ene, steel, etc.

Model R100: ROOF DRAIN FILTER� (Unit: ㎜)Part No. A B C D E Applicable�pipe

R-100 48 44 140 90 99 VP・VU-100Polyethylene pipe, steel pipe, etc.

Model R150: ROOF DRAIN FILTER� (Unit: ㎜)Part No. A B C D Applicable�pipe

R-150 63 45 140 165 VP・VU-150Polyethylene pipe, steel pipe, etc.

Specification

Features

SSERIES

Channel ridge

SHISUI-HEKI (for draining)

SHISUI-HEKI (for culvert)

Drainage channel

Screw type lock plug

Drain pipe

Drain Box（ET2）

Culvert pipe

φAφFB

E

t

C

68

SHISUI-HEKI (Slope protection on pipe)Model S1: SHISUI-HEKI (Slope protection on pipe)

Plastic product

When water is drained through PVC or polyethylene pipe from DRAIN BOX (stop-log), water could leak from around the pipe where it crosses the channel ridge (water path), collapsing the face of slope. To prevent such collapse, a SHISUI-HEKI is installed at the middle of PVC pipe (polyethylene pipe). This construction method allows installing a SHISUI-HEKI (Slope protection on pipe) on newly installed or existing pipe, without cutting the pipe.

Installation view

◦��Light, highly resistant to corrosion and easy for mainte-nance and control.

◦��Installation is simplified because it can be connected to a pipe quite easily.

A- For newly installed pipes

B- For existing pipes

Model S1: SHISUI-HEKI (Slope protection on pipe)� (Unit: ㎜)Part No. A B C E F t Applicable�pipe

S1-100A

114 400 500 30 120 3 VP・VU-100B

S1-125A

140 400 500 30 147 3 VP・VU-125B

S1-150A

165 400 500 30 172 3 VP・VU-150B

A: For newly installed pipe, B: For existing pipe* Products for culvert and polyethylene pipe are also produced. (Please specify the diameter.)

Features

Specification

TSERIES

6-M8SUS anchor

4-M8SUS anchor

4-M8SUS anchor

Inner wall of manhole

Secondary concrete

45°

ＦＦＦ

Ｇ

Ｅ

Ｂ

Ａ

ＪＣ

Ｅ

Ｂ

Ａ

ＪＣ

Ｅ

Ｂ

Ａ

ＪＣ Inner wall of manhole

With sliding inspection hole

Inner wall of manhole

BAFFLE PLATETA

BAFFLE PLATETB

BAFFLE PLATETC

69

Model TA: BAFFLE PLATE

BAFFLE PLATEHard PVC product

BAFFLE PLATE is a compact product that can cope with larger fall heads, for use in place of internal/external drop pipes of sewerage construction specification.

◦��BAFFLE PLATE is so constructed that it will not to affect the cross section of inner space as much as possible. Mainte-nance after installation is also simplified.

◦��Light and highly durable.◦��It can be fixed with anchor for simplified installation.

◦��Dimensions can be adjusted easily to requirements at site.◦��Some products have no inspection hole.◦��It may be adjusted to the manhole I.D. (Please specify the I.D.)◦��When the fall head is larger, the concrete floor can be pro-

tected by using Model TC product.

Model TA: BAFFLE PLATE� (Unit: ㎜)Part No. A B C Ｅ Ｆ Ｇ Ｊ（No.3～No.0） Applicable pipe diameter Remark

TA-100(With inspection hole) 150 210 50 43 550 20050-58 φ75 ・ φ100

Molded product

50 mm in the dimension F isfor the overlap margin.

TB-100/TC-100 150 210 50 43 550 ―

TA-200(With inspection hole) 265 375 50 77 550 200100-126 φ150 ・ φ200

TB-200/TC-200 265 375 50 77 550 ―

TA-250(With inspection hole) 270 395 60 134 500 250160-190 φ250

Processed productTB-250/TC-250 270 395 60 134 500 ―

TA-300(With inspection hole) 307 460 60 134 500 250169-213 φ300

TB-300/TC-300 307 460 60 134 500 ―

* Part of processed product is different in profile. * Dimension J varies depending on the manhole size (No.).* For pipe diameters or manhole sizes (Nos.) other than the above, please consult us. * Stainless steel products are also produced.

Features

Specification

TA

Downstreamof main pipe

Downstreamof main pipe

Secondaryconcrete

Upstreamof main pipe

Upstreamof main pipe

Manhole Manhole

TB

TB

Construction methods of TA and TB Construction methods of TA, TB and TC

TA

TB

TC

◦ No. 1 manhole

◦ A1 manhole ◦ Installed at 2 places ◦ Model TC: Invert-finish

◦ No. 2 manhole

70

Installation view

Example of installation

Inspection hole lock specification (Standard)

TSERIES

6-M8SUS anchor

Inspection door

STAINLESS BAFFLE PLATE TAS

EA

F

K

K

H2

B C

6-M8SUS anchor

EA

F

B C

STAINLESS BAFFLE PLATE TBS

71

Model TAS, Model TBS: STAINLESS BAFFLE PLATE

STAINLESS BAFFLE PLATEStainless steel product

STAINLESS BAFFLE PLATE has been added to conventional ones (Plastic product).

◦��Stainless baffle plate is so constructed that it will not to af-fect the cross section of inner space as much as possible. Maintenance after installation is also simplified.

◦��It is highly durable because it is made of stainless steel.

◦��It can be fixed with anchor for simplified installation.◦��It can be produced according to the fall head at site and

manhole I.D. (Please specify the I.D.)◦��Some products have no inspection hole.

Model T: STAINLESS BAFFLE PLATE (Stainless steel product, t-1.5)� (Unit: ㎜)Part No. A B C Ｅ K H2 F Applicable manhole Applicable pipe diameter

TAS-100(With inspection hole) 150 210 50 43 100 250

Spe

cifie

d dimen

sion

sSta

ndard size

is 1,00

0

No.0-No.4 φ75 ・ φ100TBS-100 150 210 50 43 ― ―

TAS-200(With inspection hole) 265 373 50 77 200 350No.0-No.4 φ150 ・ φ200

TBS-200 265 373 50 77 ― ―

TAS-250(With inspection hole) 270 395 60 134 200 400No.2-No.4 φ250

TBS-250 270 395 60 134 ― ―

TAS-300(With inspection hole) 307 462 60 134 200 450No.2-No.4 φ300

TBS-300 307 462 60 134 ― ―

TAS-400(With inspection hole) 370 532 60 182 200 550No.3-No.4 φ350 ・ φ400

TBS-400 370 532 60 182 ― ―

* When the fall head is more than1 m, a connecting band (TDS type) is required separately.

Features

Specification

72

USERIES

D

P

C

N pieces

G

AB

30°

UA type (Steel product)◦��Simplified installation.◦��Dirt floating in water can be collected easily because it is

gathered at the top of screen.◦Sediment accumulated in the screen tray can be removed.

UB type (Steel product)◦��Simplified installation.◦��The screen can be fixed with the adjust screw.◦��Since the main body rotates, collected dirt can be removed

easily.

UC type◦��UCS … Made of stainless steel◦��UCT … Made of steel◦Simplified installation.◦��The screen is fixed to the wall surface with concrete anchor.

UD type (Synthetic resin product)◦��Insert type for PVC/hume pipe.◦��It is possible to maintain and clean up due to rotation of

grating.◦��Avoid trash and small animals penetration.

73

SCREEN (UA type)

SCREENSteel/Stainless steel/Plastic product

SCREEN has been developed UA type screen that pushes dirt upward to assure smooth flow of water, and UB type screen that allows removing dirt easily by rotating the main body, UC type for mounting on the wall, UD type for PVC pipe and hume pipe.

Installation

◦��It is installed at the inlet of catch basin, in front of house gate or upstream side of “U” gutter cover at the gate of parking lot. (UA, UB type only)

◦��It is installed at the inlet of catch basin at golf course to keep away golf balls, fallen leaves or turf. (UA, UB type only)

◦��It is installed at the inlet of culvert waterway.◦��It is adapted for PVC pipe from 75 dia ~250 dia, up to hume

pipe 250 dia.◦��Some products have no inspection hole.

SCREEN (UA type)� (Unit: ㎜)

Part No. A B C D G N P

UA-180 380 360 250 124 100 3 46

UA-240 500 480 330 182 150 4 50

UA-300 630 600 380 232 200 5 50

Features

Specification

DφC

t L

Screen type

Type A Type B Type C

N pieces

D

D

B

A

C

PRNumber of anchors

D

P

N pieces

E

A

B

L

UA type UC typeUB type UD type

74

Installation view

SCREEN (UB type)� (Unit: ㎜)

Part No. A B D E L N P

UB-180 234 180 149 100 230 4 47

UB-240 294 240 200 100 305 5 48

UB-300 354 300 243 100 360 6 47

SCREEN (UC type)� (Unit: ㎜)Part No. A B C D N P R

UCSUCT

300 350 350 450 75 4 75 4

350 400 400 500 75 4 75 4

400 450 450 550 75 5 75 4

450 500 500 600 75 6 75 4

500 550 550 700 75 6 75 4

550 600 600 750 75 7 75 4

600 650 650 800 75 8 75 4

700 750 750 900 75 9 75 4

800 850 850 1000 75 10 75 4

900 900 900 1100 100 8 100 6

1000 1000 1000 1200 100 9 100 6

SCREEN (UD type)� (Unit: ㎜)Part No. C D L t Applicable�pipe Screen�

type

UD-75P 80□ 80 100 12

VP75A

UD-75U 86 VU75

UD-100P/H 102φ128 50 14

VP100/HP100A

UD-100U 110 VU100

UD-125P/H 126□ 153 121 14

VP125/HP125B

UD-125U 133 VU125

UD-150P 146

φ180 85 13

VP150

BUD-150H 159 HP150

UD-150U 157 VU150

UD-200P 194φ220 90 14

VP200C

UD-200U/H 207 VU200/HP200

UD-250U/H 255φ290 140 15

VU250/HP250C

UD-250P 242 VP250

VSERIES

φA

F G

BC

φE

Specified dimensions(Concrete thickness)

φH

H

φA

F G

BC

φE

Specified dimensions(Concrete thickness)

75

Model V1-50, Model V1-75: ROAD DRAIN FILTER

ROAD DRAIN FILTERPlastic product

ROAD DRAIN FILTER is used to drain rainwater smoothly from road surfaces at elevated concrete structure, floor board of bridge, etc.

◦��Simplified installation and higher safety level.◦��Sturdy and resistant to corrosion.

◦��It can be made to adapt to thickness of slab.◦��Location of use is as shown in the installation view.

Model V1-50: ROAD DRAIN FILTER� (Unit: ㎜)Part No. A B C E F G H Applicable�pipe

V1-50 89 20 40 60 9 8 75 VU-50

Model V1-75: ROAD DRAIN FILTER� (Unit: ㎜)Part No. A B C E F G H Applicable�pipe

V1-75 107 40 84 89 14.5 3.5 89 VU-75

Features

Specification

Culvert Pool-side

Bridge Projecting bridge

76

Installation view Installation

Record of strength (Japanese)

V1-50 type V1-75 type

◦��Cut the length of main body a little shorter than the thick-ness of floor board. Fix it on a reinforcing steel and line with concrete.

* Excellent load withstanding capacity.

YSERIES

Main body: Synthetic rubber, t = 1.0

Adhesive

Release paper

77

Model YA: PROTECTION SHEET

PROTECTION SHEETSynthetic rubber product

PROTECTION SHEET is a temporary protective sheet to protect the surface of iron cover of manhole or hand-hole from soiling or adhesion of paving materials (asphalt, etc) during road construction work.

◦ Protection sheet protects the surface of iron cover during repairs or overlay work on the pavement associated with the installation of man-hole or hand-hole.

◦ It can be used both on road way and pavement.◦ It is a thin and special sealing material which fits well in the relief on the surface of iron cover, with some slip-proof effect. (Slip-proof

effect is limited. It may be necessary to take safety measures depending on the conditions at site.)◦ It is a product of seal specification, which can be used easily. Adhesive will not left over on the surface of iron cover after it is removed.◦��It can withstand the heat at asphalt pavement work. Approximate withstanding temperature is 150°C. Paving material should be removed

immediately after finishing the paving. (If it is heated for a long period of time, the adhesive material may be transferred. Care should be taken particularly in case of colored cover.)

◦��Letters, measuring point, etc. can be written on the surface.◦��Service life is approx. 3 months. (It varies widely depending on the conditions of traffic, climate, etc. Please contact us particularly for appli-

cations at trunk road or in cold region.)

◦��Clean the surface of iron cover. Removing the release paper, attach the Protection sheet to the iron cover.

◦��Lightly tap with a plastic hammer, or the like, from above to adhere it firmly. (Attach it always under ordinary temperature. Otherwise, it may not attach firmly.)

◦ After attaching to the Protection sheet, apply light oil over the iron cover protective sheet, to facilitate removal of paving material.

◦Always store it at a cool place, avoiding exposure to direct sunlight.

Installation

Model YA: PROTECTION SHEET� (Unit: ㎜)Form Part No. Dimensional�designation

Round type YA-XD X: Outside dimension

Square type YA-A×B A: Longitudinal dimensionB: Lateral dimension

* For any form other than the above, please contact us.

Features

Specification

78

◦Specification table of PVC pipeStandard (VP pipe): General purpose� (Unit: ㎜)

Nominal diameterO.D. Minimum

dimension of thickness

Allowance of thickness

Approximate I.D.

LengthReference

weight(㎏/m)Basic dimension

Allowance of average O.D.

VP-13 18 ± 0.2 2.2 ＋0.6 13

4,000

0.174

VP-16 22 ± 0.2 2.7 ＋0.6 16 0.256

VP-20 26 ± 0.2 2.7 ＋0.6 20 0.310

VP-25 32 ± 0.2 3.1 ＋0.8 25 0.448

VP-30 38 ± 0.2 3.1 ＋0.8 31 0.542

VP-40 48 ± 0.2 3.6 ＋0.8 40 0.791

VP-50 60 ± 0.2 4.1 ＋0.8 51 1.122

VP-65 76 ± 0.3 4.1 ＋0.8 67 1.445

VP-75 89 ± 0.3 5.5 ＋0.8 77 2.202

VP-100 114 ± 0.4 6.6 ＋1.0 100 3.409

VP-125 140 ± 0.5 7.0 ＋1.0 125 4.464

VP-150 165 ± 0.5 8.9 ＋1.4 146 6.701

VP-200 216 ± 0.7 10.3 ＋1.4 194 10.129

VP-250 267 ± 0.9 12.7 ＋1.8 240 15.481

VP-300 318 ± 1.0 15.1 ＋2.2 286 21.962

Standard (VU pipe): Thin walled pipe� (Unit: ㎜)

Nominal diameterO.D. Minimum

dimension of thickness

Allowance of thickness

Approximate I.D.

LengthReference

weight(㎏/m)Basic dimension

Allowance of average O.D.

VU-40 48 ± 0.2 1.8 ＋0.4 44

4,000

0.413

VU-50 60 ± 0.2 1.8 ＋0.4 56 0.521

VU-60 76 ± 0.3 2.2 ＋0.6 71 0.825

VU-75 89 ± 0.3 2.7 ＋0.6 83 1.159

VU-100 114 ± 0.4 3.1 ＋0.8 107 1.737

VU-125 140 ± 0.5 4.1 ＋0.8 131 2.739

VU-150 165 ± 0.5 5.1 ＋0.8 154 3.941

VU-200 216 ± 0.7 6.5 ＋1.0 202 6.572

VU-250 267 ± 0.9 7.8 ＋1.2 250 9.758

VU-300 318 ± 1.0 9.2 ＋1.4 298 13.701

VU-350 370 ± 1.2 10.5 ＋1.4 348 18.051

VU-400 420 ± 1.3 11.8 ＋1.6 395 23.059

VU-450 470 ± 1.5 13.2 ＋1.8 442 28.875

VU-500 520 ± 1.6 14.6 ＋2.0 489 35.346

VU-600 630 ± 3.2 17.8 ＋2.8 592 52.679

* Caution: 1. Allowance of length is ±10 mm.2. Reference weight is calculated, taking 1.43 for specific gravity. It is for reference purpose only and not a part of the standard.

* Caution: 1. Allowance of length is ±10 mm.2. Reference weight is calculated, taking 1.43 for specific gravity. It is for reference purpose only and not a part of the standard.

WE CONTEMPLATE FLOW PHENOMENA! WE EXPLORE MYSTERY OF SOIL!

CHUBUBIKA CORPORATIONHead office : 97,Annaku,Shippo-cho Okinoshima,Ama,

Aichi 497‐0001,JAPANURL : http://www.chububika.co.jpE-mail : info@chububika.co.jp