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Built-in safety valve NA42F-25

Features

Applicable to tank trucks of liquefied gas, liquid oxygen, etc. When the medium pressure in the tank rises to the set pressure value, the valve automatically opens and discharges the full amount. When the medium pressure drops to another specified value,

Technical Parameters


Technical Parameters


Nominal pressure Mpa 2.5
Shell test pressure Mpa 3.75
Opening pressure level Mpa 1.0、1.8、2.2
Applicable media -40℃-+80℃
Applicable temperature Liquefied gas, ammonia, liquid ammonia, etc.

Main parts materials

Main parts materials Bracket Valve disc Valve stem Upper guide sleeve spring Gasket
WCB WCB WCB 20Cr13 ZG20Cr13 50CrVA PTFE

Built-in safety valve NA42F nominal pressure PN2.5MPa dimensions and connection dimensions

DN D0 D D1 D2 D3 b f Z-φd H H1
50 35 160 125 99 68 20 3 4-φ18 407 113
80 52 235 190 149 105 25 5 8-φ22 532 145