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Type WA41C Safety Valve

Safety Valves, angle type

Low lift safety valve

Metal to metal seated

Flanged connection acc. to ANSI B16.5

Balance bellows safety valve

Applications:

Provided as safety device for protection against excessive pressure in pressure vessels.

Approved for gases, vapours and fluids.

Working temperatures:

-29°C up to +200°C

Standards Compliance:

Design and Manufacture: API RP 520

Face to Face(end to end): API 526

Test and Inspection: API 527


Main property specifiecation

Mormal PressurePN1503006009001500
Body strengthPs(Mpa)3.07.51522.537.5
Set pressurePk(Mpa)0.1-21.6-53.2-108-2510-25
Seal pressurePm(Mpa)90%Pk
Reseation pressurePh(Mpa)≥90%Pk
Relieving PressurePp(Mpa)≤1.1Pk
Lift heightH(mm)≥1/20 d0
Appropriate                 temp.≤200℃
Appropriate       MediumC (WCB)                                                      P, R (SS304, SS316)Gas, Liquid                                                    Nitric Acetic Acid, Gas, Liquid







Code of throat diameter





CodeDiameterCodeDiameter
D10L20
E13M55
F16N60
G20.5P72
H26Q96
J33R115
K40T148


Main Dimensions

WA41C150, WA41C150P, WA41C150R
Nominal Diameter (in)Dimensions(mm)  Inlet flange 150Lb
d0DD1D2btZ-ΦdDN'D'D1'D2'b't'Z'-Φd'LL1H
1/2" x 1/2"D8960.5351254-15158960.535121.64-159090260
3/4" x 1"D9870431454-152510879.551151.64-159692280
1" x 1"D10879.5511554-152510879.551151.64-15100100290
1" x 2"E10819.5511554-1550152120.592181.64-19115105290
11/2" x1 1/2"G12798.5731854-154012798.573181.64-15121124330
11/2" x2"G12798.5731854-1550152120.592181.64-19121124330
2" x 3"J152120.5921854-1980190152.5127221.64-19124130350

Remark: 150Lb for outlet flange


WA41C300, WA41C300P, WA41C300R
Nominal Diameter (in)Dimensions(mm)  Inlet flange  300Lb
d0DD1D2btZ-ΦdDN'D'D1'D2'b't'Z'-Φd'LL1H
1/2" x 1/2"D9566.5351564-15158960.535121.64-159090320
3/4" x 1"D11782.54316104-192510879.551151.64-159692330
1" x 1"D12489511864-192510879.551151.64-15100100350
1" x 2"E12489511864-1950152120.592181.64-19115105350
11/2" x1 1/2"G156114.5732094-224012798.573181.64-15121124370
11/2" x2"G156114.5732094-2250152120.592181.64-19121124370
2" x 3"J165127922288-1980190152.5127221.64-19124130390

Remark: 150Lb for outlet flange

WA41C1500
Nominal Diameter (in)Dimensions(mm)  Inlet flange 1500Lb
d0DD1D2btZ-ΦdDN'D'D1'D2'b't'Z'-Φd'LL1H
1" x 1"D150101.65129104-262512489511.81.64-19125125360

Remark: 300Lb for outlet flange


Materials for main parts

NOName of partMaterials WA41H-CMaterials WA41Y-PMaterials WA41Y-R
1BodyWCB304316
2Nozzle2Cr13/ 304304316
3Adjusting Ring2Cr13/ 304304316
4Disc2Cr13/ 304304316
5Disc Holder2Cr13304316
6Bellows340304316
7Guide sleeve2Cr13/ 304304316
8BonnetZG230-450ZG230-450ZG230-450
9Spring50CrVA50CrVA coated teflon50CrVA coated teflon
Sealing surface of material "H" depositing D507,  "Y" depositing stellite

Essential:

Valves are delivered at a set pressure, therefore when ordering 

please confirm set pressure, medium and temperature

TS

Safety accessory and Safety protection device 

Manufacture License of Special Equipment, People's republic of China


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WA41C

Vented bonnet with cap, Low Lift