The Generant Series APRV is a spring reference over pressure protection device for applications requiring constant set pressure independent of changes in ambient pressure (altitude). Developed primarily for use with liquid helium dewars and extensively tested to verify performance in extreme cold environments.
Set pressures range from 15.0 to 24.0 PSIA — factory preset and permanently locked. Available in vent-to-atmosphere (APRVA-250) or inline dual ferrule tube (APRV-8T) configurations. Oxygen service cleaning available as an option.
- Supplied Factory Preset — 100% Factory Tested for Leakage, Crack and Reseat Performance
- Minimal Set Pressure Drift due to change in ambient pressure (altitude independent)
- Qualified for Extreme Low Temperature applications — developed for liquid helium dewars
- High Flow Capacity and Excellent Reseat Performance
- Discharge to Atmosphere (APRVA-250) or Inline Piping (APRV-8T) configurations
- Optional Cleaned and Packaged for Oxygen Service (-X suffix)
- Set Pressure Range: 15.0 to 24.0 PSIA (1.02 to 1.65 bar) — Absolute Pressure
- Factory Set Tolerance: ±0.5 PSI
- Reseat: 92% of Set Pressure in PSIA
- Temperature Rating: -80°F to 350°F (-62°C to 176°C)
- Seal Material: Fluorosilicone (standard)
- Configurations:
- APRVA-250 – Vent to Atmosphere, 1/4" NPT Inlet Port
- APRV-8T – Inline, 1/2" Bi-Lok Dual Ferrule Tube Inlet & Outlet
- Oxygen Service: Optional, specify -X suffix
- Note: For other port configurations and seal materials, consult factory
