Generant High Pressure Gas Control Valve, Series MVA
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Series MVA High Pressure Gas Control Valve

Brand: Generant Inc
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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 psi: 5,500 (kPa: 37,921, bar: 379.2) with only psi: 85 (kPa: 586.1, bar: 5.861) required to open valve to full orifice.
Features
  • Oxygen safe: Copper valve (seal option C) configuration third party tested per ISO 7291 (O2 Surge) and ASTM G175 (Promoted Ignition)
  • Low actuation pressure: psi: 85 (kPa: 586.1, bar: 5.861) 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

Specifications

Brand

Bonnet Material

  • Inner: Brass, ASTM B16

Electrical Contacts

  • Normally Closed
  • Normally Open

Enclosure, Body Material

  • Brass

Flow Capacity

  • Flow Coefficient: 2.5 Cv for All Valve Configurations

Materials of Construction

  • Mounting Bracket: A500 Structural Steel
  • Poppet, Washer: Brass, ASTM B16
  • Replaceable Seat Crush Washer: Copper, ASTM B152
  • Seal Washer: PTFE, ASTM D1710
  • Valve Actuator: Anodized Aluminum
  • Valve Actuator: Stainless Steel
  • Valve Adapter (Non-Wetted): 303 Stainless Steel, ASTM A582
  • Washer, Mounting Bracket: Zinc-Plated Steel

NPS Connection

  • 1” NPSM Male

NPT Connection

  • 1/2” NPT Female
  • 3/4” NPT Female

Nut & Bolt Material

  • Mounting Nut: Zinc-Plated Steel
  • Panel Nut: Brass, ASTM B16

O-Ring Material

  • FKM

Operating Pressure

  • Cylinder - psig: 85 to 125 (kPa: 586.1 to 861.8, bar: 5.861 to 8.618)
  • Valve - Vaccum to psig: 5,500 (kPa: 38,000, bar: 380) at 21.1° C (70° F)

Operating Temperature

  • -40° to 74° C (-40° to 165° F)

Orifice Size

  • Valve: 0.406” (10.3 mm)

Pressure Rating

  • psig: 3,500 (kPa: 24,200, bar: 242) - Max.

Ring Material

  • Back-Up Ring: PTFE, ASTM D1710

Seat / Seal Material

  • Poppet Insert (Seal): Copper, ASTM B152
  • Poppet Insert (Seal): PCTFE, ASTM D1430
  • Replaceable Seat: 303 Stainless Steel for PCTFE Seat Material
  • Replaceable Seat: Monel 400 for Copper Seat Material
  • Stem Seal: FKM for Copper Seat Material
  • Stem Seal: Molythane for PCTFE Seat Material
  • Valve Actuator (Seal): Nitrile

Stem Material

  • Replaceable Stem: 303 Stainless Steel for PCTFE Seat Material
  • Replaceable Stem: Monel 400 for Copper Seat Material

Documentation

Data Sheets

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