SteamSteamS a f e t y V a l v e

Safety

Valve

Safety

Valve

7-3, Futano-cho, Mizuho-ku, Nagoya, 467-0861, Japan Phone: 81-52-881-7199 Fax: 81-52-881-7201www.yoshitake.jp

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Full bore type Lever type Ductile iron

HH1

Lφ Di

ti

AF-2Features1. Lift safety valve, designed in compliance with JIS B 8210 "Springloaded safety valves for steam boilers and pressure vessels".2. Larger discharge capacity than lift type.3. Due to lift lever mechanism a discharge inspection can be manuallyperformed at more than 75% of the opening pressure.4. Blowdown pressure can be adjusted with a back pressure throttlevalve.5. A material of excellent quality is used for the trim parts. Highperformance is maintained by precision processing and heattreatment.

SpecificationsStructureApplicationWorking pressureMaximum temperature

ConnectionMaterial Valve caseSpring caseValve, valve seat

Open type with a leverSteam0.18-1.6 MPa220˚CDuctile cast ironDuctile cast ironStainless steelInlet: JIS B 8210 10K RF flanged *Outlet: JIS B 2239 10K FF flanged

Dimensions and WeightsNominal size

65A80A

Inlet diameter x Throat diameterx Outlet diameter

65 x 49 x 90 75 x 57 x 100 1884.72550.7 11.113.0

LiftR (mm)

Dimension (mm) Connection (mm)Inlet: JIS B 8210 10KDi Ci gi ti fi ni x hi200210 160170 105125 3032 22 8 x 238 x 23 100A

L H1 H150165 142160

Weight(kg)50.062.3

Outlet630682

Flow areaーdt2 (mm2)π4

* JIS B 8210 20K RF flanged when working pressure is more than 1.0 MPa.

Certified Capacity Table●For steam (saturation temperature) <Pressure vessel structure standard> (kg/h)

Pressure MPa

Nominal size65A80A 24673339 33134484 41715645 49996766 58217878 66368981 744410074 825311170 906712271 987713368 1068414460 1148815547 1230016647 1309817727 13907188210.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6

<Boiler structure standard> (kg/h)Pressure MPa

Nominal size65A80A 24293287 31984328 39785385 47356409 55057451 62698484 70339518 778410535 854711567 930612595 1006313619 1081614638 1157815669 1233816698 13096177250.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6

･ Please contact us for the calculation procedure for nominal size selection.

P136_安全 2011.3.10 1:05 PM ページ 1

S a f e t y R e l i e f V a l v e

Safety

Relief V

alveSaf

ety Rel

ief Valve

7-3, Futano-cho, Mizuho-ku, Nagoya, 467-0861, Japan Phone: 81-52-881-7199 Fax: 81-52-881-7201www.yoshitake.jp

137

安全-00

FeatureModel

Picture

Application

Relief valve / Diaphragm typeAL-24

Cold and hot water

Material

Lift type / Closed typeAL-150

Steam, Air, Cold and hot water, Oil,Other non-dangerous fluids0.05-1.0 MPa220˚C *JIS Rc screwedCast bronzeStainless steel (SCS14A)Stainless steel (SCS14A)15A-50A

0.1-0.7 MPa *160˚CJIS Rc screwedCast bronze *2NBR *3Stainless steelNBR(heat-resistant nylon contained)15A-25A

Working pressureMax. temperature Connection

Valve caseValve Valve seatDiaphragm

Size

Others

FeatureModel

Picture

Application

Material

Working pressureMax. temperature Connection Spring caseValveValve seatSizeOthers

AL-150L Lift type / Lever type

Steam, Air220˚CJIS Rc screwedCast bronzeStainless steel (SCS14A)Stainless steel (SCS14A)15A-50A－

0.05-1.0 MPa

Full bore / SCPHAF-6H Full bore / SCSAF-6HS

Air, Other non-dangerous fluids0.1-1.96 MPa250˚C *1Inlet: JIS 20K RF flangedOutlet: JIS 10K FF flanged *2

Stellite overlaid stainless steelStellite overlaid stainless steel－

25A-100A

Cast stainless steelCast carbon steel

AF-6H

AL-150HL

1.0-1.6 MPa

*1 Available with working pressure between 0.05 MPa and 0.1 MPa. *2 Available with NPb-treated. *3 Available with FKM (AL-24F).

*1 It may change depending on fluid and pressure. *2 The inlet flange is thicker than JIS standard value.

* The maximum temperature is 150˚C when using for water, oil or other liquids.

AL-150L

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