Pressure gauge and instrument valves

Pressure gauge valves are installed in the piping to function as shut-off valves for a pressure gauge. It is very typical that also a water seal pipe will be installed in the piping before the pressure gauge valve.

Inspection flange

There are different pressure gauge valves but usually they will be delivered either with an inspection flange or without it. A model fitted with an inspection flange, a so-called engineer valve, is designed for applications where a third party inspector should be able with his/her own pressure gauge to quickly check the line pressure of the location.


  • 1/4
  • PN 100-630
  • Threaded
  • Brass, C 22.8, AISI 316

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