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 Copper (C) configuration was third-party tested per ISO 7291 (O₂ Surge) and ASTM G175 (Promoted Ignition) for Oxygen service.
Available in Normally Closed (-NC) or Normally Open (-NO) configurations. The NC version seals bubble-tight to 5500 PSI with only 85 PSI required to open to full orifice. Fully field re-buildable. Vacuum to 5500 PSIG.
- Oxygen Safe: Copper (C) Configuration Third-Party Tested per ISO 7291 (O₂ Surge) and ASTM G175 (Promoted Ignition)
- Low Actuation Pressure: Only 85 PSI Required to Actuate Valve
- Flow Control: Unique Valve Geometry Allows Metering on Initial Opening — Minimizes Initial Pressure Surges
- Normally Closed or Normally Open: Specify -NC or -NO to suit your system design
- High Flow: Large Orifices and Internal Flow Paths for Maximum Flow Efficiency — Cv 2.5 for All Configurations
- Long Service Life: Extensive Life Cycle Testing Performed to Ensure Reliable Performance
- Field Re-Buildable: All Seat / Seal Configurations Fully Field Re-Buildable
- 100% Factory Tested for Internal and External Leakage
- Valve Operating Pressure: Vacuum (29 inHg) to 5500 PSIG (380 bar) @ 70°F — MAWP per ASME BPVC Section VIII Division 1
- Note: NPSM Connections (1" 11.5 NPSM) de-rated to 3500 PSIG (242 bar) due to connection's maximum pressure rating
- Cylinder Operating Pressure: 85–125 PSIG (1/4" NPT actuation port)
- Operating Temperature Range: -40°F to 165°F (-40°C to 74°C)
- Flow Coefficient (Cv): 2.5 for all valve configurations
- Orifice: 0.406" (10.3 mm)
- Leakage: No bubbles visible for 10 seconds with N₂ gas at 2500 PSI
- Copper (C) configuration: Copper poppet insert, Monel® 400 seat and stem
- PCTFE (K) configuration: PCTFE poppet insert, 303 SS seat and stem
- Note: Generant does not recommend PCTFE (K) in Oxygen Service
- Caution: Valve actuators are spring loaded devices — extremely dangerous if improperly disassembled