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Pipeline Safety Valve A21F-25

Features

Applicable to gas or liquid ammonia pipelines. When the medium pressure in the pipeline rises to the set pressure value, the valve automatically opens to release the pressure and protect the safe operation of the equipment.

Technical Parameters


Technical parameters:

Nominal pressure Mpa 2.5 4.0
Shell test pressure Mpa 3.75 6.0
Sealing test pressure Mpa 2.75 4.4
Set pressure Mpa User confirmed
Applicable temperature -29℃-+80℃
Applicable media Liquefied petroleum gas, liquid ammonia, etc.
Manufacturing standards GB/T12243-2005

Main parts materials

Valve body Valve stem Valve disc Valve Seat spring Gasket
WCB 20Cr13 ZG20Cr13 ZG20Cr13 50CrVA PTFE

Pipeline safety valve A21F nominal pressure PN2.5MPa dimensions and connection dimensions

DN Rp D L H1 D0 D1 D2 H
15 1/2 30 35 75 12 15 20 70
20 3/4 34 40 81 16 20 25 74
25 1 42 50 89 20 25 31 106