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Type A42C Safety Valve

Safety Valves, angle type


Full lift safety valve

Standard safety valve for fluids

Metal to metal seated

Flanged connection acc. to ANSI B16.5

Balance bellow 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 PressurePN150300600900150
Body strengthPs(Mpa)3.07.51522.538
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)≥1/4 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


Remark: 150Lb for outlet flange

WA41C600, WA41C600P, WA41C600R
Nominal Diameter (in)Dimensions(mm) Inlet flange  600Lb
d0DD1D2btZ-ΦdDN'D'D1'D2'b'tZ'-Φd'LL1H
3/4" x 1"D11782.5431674-192510879.551151.64-159692330
1" x 2"D12489511974-1950152120.592181.64-19115105340
11/2" x 2"F156114.5732274-2250152120.592181.64-19152124360
11/2" x 21/2"F156114.5732274-2265178139.5105201.64-19152124380
11/2" x3"F156114.5732274-2280190152.5127221.64-19152124380
2" x21/2"H165127922678-1965178139.5105201.64-19162154390
2" x 3"H165127922678-1980190152.5127221.64-19162154390
21/2" x 4"K1901491002978-22100229190.5157241.68-19143165390
3" x 4"K21016812732108-22100229190.5157241.68-19162155460
4" x 6"N27321615738108-25150279241.5216261.68-22210200540
6" x 8"P356292216461012-29200343298.5270291.68-22241240780

Remark: 150Lb for outlet flange


Materials for main parts

NOName of partMaterials WA42H-CMaterials WA42Y-PMaterials WA42Y-R
1BodyWCB304316
2Nozzle2Cr13/ 304304316
3Adjusting Ring2Cr13/ 304304316
4Disc2Cr13/ 304304316
5Guide sleeve2Cr13/ 304304316
6BonnetZG230-450ZG230-450ZG230-450
7Spring50CrVA50CrVA coated teflon50CrVA coated teflon
8Stem2Cr13304316
9Adjusting bolt452Cr132Cr13
10CapZG200-400ZG200-400ZG200-400
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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WA42C

Vented bonnet with cap