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Metric thread pressure relief valves with NPT thread valve holder

Allows the replacement of a valve without prior degassing of the tank. The valve and valve holder have metric threads. The seal between the valve and the plug is achieved by a sealing ring. The assembly is mounted on a female NPT threaded boss.


Valve with cylindrical thread M36 and M45.

These valves can only be mounted on a suitable valve holder with M36 or M45 thread

  • Connection of the valve to the tank: Male NPT thread 1’’1/4 and 2’’
  • Connection of the valve on the poppet: Thread M36 or M45
  • Sealing valve on poppet: BS sealing ring
  • Materials: brass

CE PED 2014/68/EU compliant.

Metric thread pressure relief valves with NPT thread valve holder