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Type A21W ST.ST Safety Relief Valve

low lift safety relief valve, cap type metal to metal seated/soft seal connection end acc. to NPT/BSP thread

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Safety Relief Valves, angle type


low lift safety relief valve, cap type

metal to metal seated/soft seal

connection end acc. to NPT/BSP thread


Applications:

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

Approved for gases, vapours and fluids.
Working temperatures: -196℃~290℃

Working pressure: 0.3-25 bar


Standards Compliance:

Design and Manufacture: GB/T 12241-2005, GB/T 12243-2005

Face to Face(end to end): JB/T 2203-1999

Test and Inspection: GB/T 12243-2005



Material for main parts

NO

Name of part

Material

1

Cap

SS304

2

Sprindle

SS304

3

Adjust Screw

SS304

4

Nut

SS304

5

Gasket

PTFE

6

Body

SS304

7

Spring

50CrVA

8

Spring Seat

Brass

9

Disc

SS304

10

Valve Seat

SS304


Main Dimension




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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