Medical Gas Master Valve, meeting ASTM B819 (clean for oxygen use) and NFPA99.


  • 1-body brass injection made, 3/4 “NPT threaded ports.
  • Brass needle type closure.
  • Brass handle made.


  • 3,000 PSI working pressures

Allowed flows:

  • Approximate 1,933.17 scfm @ 3,000 PSI.


  • Main or Master Valve to cylinder headers installation 3,000 PSI working pressure.
  • Medical Gas Only.
  • Inlet-outlet diameters: 3/4 “NPT.
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