The Generant Series RVA is a spring reference over pressure protection device that meets the safety relief valve requirements of ASME BPVC Section XIII — carrying the ASME UV and NB Stamp as standard. Designed for use on piping systems or liquid cylinders when an ASME Coded relief valve is required.
Factory preset from 20 to 550 PSIG and permanently locked. Available in brass or 316 stainless steel, with or without drain hole. Supplied cleaned and packaged for oxygen service per CGA G-4.1. Color-coded labels for easy set pressure identification.
- High Flow, ASME Rated & NB Certified: ASME UV and NB Stamp standard — industry leading flow capacity
- High Performance Seal: State-of-the-art sealing technology ensures durability and reliability
- Locked Setpoint: Factory preset and permanently locked
- Configurable: Multiple port options and optional drain hole
- 100% Factory Tested: Crack and reseat performance guaranteed
- Oxygen Service Compatible: Cleaned and packaged for Oxygen Service per CGA G-4.1
- Color Coded Labels: Easily identify relief valve set pressure
- Available in Brass or 316 Stainless Steel
- Nominal Set Pressure Range: 20 to 550 PSIG (1.37 to 37.92 bar)
- Factory Set Tolerance:
- Set Pressure 20 – 48 PSI: ± 1.45 PSI
- Set Pressure ≥ 49 PSI: ± 3%
- Reseat: >90% of Nominal Set Pressure
- Zero Leakage to 95% of Set Pressure
- Full Rated Flow @ 110% of Set Pressure
- Unaffected by up to 10% Back Pressure
- Temperature Rating: -320° to 392°F (-196° to 200°C) based on seal material
- Orifice Area: 0.062 in² (40 mm²)
- Derated Kd Value: 0.667
- Seal Materials:
- FS – Fluorosilicone: 20–149 PSI, -85° to 392°F, Rated Slope 0.693
- CT – 25% Carbon-Filled PTFE: 150–550 PSI, -320° to 200°F, Rated Slope 0.764
- Certifications: ASME BPVC Section XIII, ASME UV Stamp, NB Certified
- Tolerances per EN ISO 4126-1
Note: Rated for Gas Service Only. If used for cryogenic media, valve must be installed with vapor barrier piping upstream (candy cane).
