Stainless Steel Specialty Valves


Quick Exhaust Valve Documents toggle

Quick Exhaust ValvesSIGMA VALVES product line of Quick Exhaust Valves (QEV) are available for Pneumatic and Hydraulic applications in a wide range of port sizes and port types, working pressures, flow range, and temperature compatibility. As with all Sigma products, the construction is all 316SS for durability and long-term dependability.

Sigma QEV are designed to provide fast closure of actuators or subsurface safety valves from remote mounted safety controls which decreases cost of installations, by allowing smaller tubing runs and fittings, while reducing the actuator closing time.

The range of features includes:

  • Port sizes: 1/4" NPT to 1.0" NPT
  • Port types: NPT, SAE, BSPP
  • Pressures: 150 psi to 10000 psi
  • Melting Temperatures available:
  • Spring assist (for certain actuator applications where hydrostatic supply pressure may be present for low force type valves)
  • Standard, H2S and Arctic Service

Specialty applications are also available with additional port connections, valve or exhaust, alternate port types.

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