MVA Series

MVA Series
MVA Series
MVA Series

NPT Female x Female
O’Ring Seal Union
Vacuum (29 inHg) – 5500 Psig (380 Bar)


The Series MVA Pneumatically Actuated High Pressure Gas Control Valve is optimized for the demanding requirements of Automated Gas Cylinder Fill Plants, Manifold, and Piping System applications. The High Pressure Oxygen Service Valve Configuration (Seal Option C) was third party tested per ISO 7291 (O2 Surge) and ASTM G175 (Promoted Ignition). The valve is also available with a PCTFE seal (Seal Option K) for positive sealing in non-oxygen applications. Series MVA valves can be specified Normally Open (-NO) or Normally Closed (-NC) and are available in a variety of porting configurations. Normally closed version seals bubble-tight up to an inlet pressure of 5500 PSI with only 85 PSI required to open valve to full orifice.


  • Oxygen Safe: Copper Valve (Seal Option C) Configuration Third Party Tested per ISO 7291 (O2 Surge) and ASTM G175 (Promoted Ignition)
  • Low Actuation Pressure: 85 Psig Required to Actuate Valve
  • Flow Control: Unique Valve Geometry Allows User to Meter Flow on Initial Opening and Minimizes Initial Pressure Surges
  • Long Service Life: Extensive Life Cycle Testing Performed to Ensure Reliable Performance
  • High Flow: Large Orifices and Internal Flow Paths for Maximum Flow Efficiency
  • Field Re-Buildable: All Seat / Seal Configurations Fully Field Re-Buildable

Technical Data

  • Valve Operating Pressure: Vacuum to 5500 Psig (380 Bar) @ 70°F (MAWP Rating per ASME BPVC Section VIII Division 1)
    • Note: Valves with NPSM Connections (1” – 11.5 NPSM) are de-rated to 3500 Psig (242 bar) due to this connection’s maximum pressure rating.
  • Cylinder Operating Pressure: 85-125 Psig
  • Operating Temperature Rating: -40° to 165°F (-40° to 74°C)
  • Flow Coefficient: Cv is 2.5 for all valve configurations
  • Valves are 100% Factory Tested for Internal and External Leakage

Click here to download product literature