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High Temperature High Pressure Welded Safety Valve

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

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High Temperature High Pressure Welded Safety Valve


Safety Valves/pressure safety valves, angle type

Full lift safety valve
Standard safety valve for boiler, open bonnet,
metal to metal seated, with plain type lifting device,
Inlet: Welded connection acc. to ASME B 16.25
Outlet: Flanged connection acc. to ANSI B16.5/DIN EN1092


Applications

Provided as safety device for protection against excessive pressure in pressure vessels.
Approved for gases, vapours and fluids
Working temperatures: ≤ 594°C


Standards Compliance

Design and Manufacture: API 520 ASME Ⅷ
centre to Face: API 526
Test and Inspection: API 527

 

 

Main property specifiecation

Mormal Pressure PN 900 1500 2500
Body strength Ps(Mpa) 22.5 39 63
Set pressure Pk(Mpa) 8-15 10-26 16-40
Seal pressure Pm(Mpa) 90%Pk
Reseation pressure Ph(Mpa) ≥90%Pk
Relieving Pressure Pp(Mpa) ≤1.03Pk
Lift height H(mm) ≥1/4 d0
Appropriate  temp. ≤594℃
Appropriate Medium Fluids, Steam,superheat Steam

 

Code of throat diameter

Code Diameter Code Diameter
D 10 L 50
E 13 M 55
F 16 N 60
G 20.5 P 72
H 26 Q 96
J 33 R 115
K 40 T 148

 

Materials for main parts

NO Name of part Materials A68Y-C Materials A68Y-C6 Materials A68Y-C9
1 Body WCB WC6 WC9
2 Nozzle 2Cr13/ 304 F11+STL F22+STL
3 Adjusting Ring 2Cr13/ 304 304 304
4 Disc 2Cr13/ 304 F11+STL F22+STL
5 Guide sleeve 2Cr13/ 304 304 304
6 Bonnet ZG230-450 WCB WC6
7 Spring 50CrVA 30W4Cr2VA 30W4Cr2VA
8 Stem 2Cr13 F11 F22
9 Adjusting bolt 45 420 420
10 Cap WCB WCB WCB
Sealing surface of material "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


Main Dimensions 


L、L1 also can according to customer's requirement







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