High Pressure Relief Valve
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Product details
The HPRV series by Generant is a direct-acting high-pressure relief valve designed for overpressure protection in gas and liquid systems up to 3700 PSIG. The valve is factory preset and tamper-resistant, featuring excellent reseal performance and a high-flow internal design. The seal is encapsulated in the poppet to prevent cold flow or extrusion under severe pressure conditions. Available in inline and vent-to-atmosphere configurations, including models with manual override.
Key Features
- Direct-acting design
- Factory preset – tamper-resistant
- Excellent reseating performance
- 100% factory tested (leak, crack, reseat)
- Encapsulated seal for cold flow prevention
- High-flow internal construction
- Multiple configurations including manual override
Models
- HPRV – Inline (Male x Female)
- HPRVA – Vent to Atmosphere
- HPRVM – Vent to Atmosphere with Manual Override
Connections
- Inlet/Outlet
- 1/8” to 3/4” NPT
- ANSI/ASME B1.20.1 standard
- SAE and JIC available on request
Pressure Ranges
- Set Pressure
- 10 – 2400 PSIG
- Set Tolerance
- ±5%
- Reseat Pressure
- 90–95% of set pressure
- Operating Pressure
- up to 3700 PSIG (inline)
- Burst Pressure
- >5000 PSIG
Temperature Range
- −320°F to +400°F (−220°C to +204°C depending on seal)
Materials
- Body, Cap, Spring Chamber
- Brass, 303SS, or 316SS
- Poppet
- 303SS
- Spring
- 302SS or 17-7PH
- Locking screw
- 18-8 Stainless Steel
- Lubricant
- Krytox™
Seal Material Options
- Viton™ seal (−20°F to 400°F / −29°C to 204°C)
- Buna-N seal (−40°F to 250°F / −40°C to 121°C)
- Neoprene seal (−40°F to 300°F / −40°C to 148°C)
- EPDM seal (−65°F to 300°F / −54°C to 148°C)
- Silicone seal (−70°F to 400°F / −56°C to 204°C)
- Teflon™ seal (−320°F to 400°F / −220°C to 204°C)
Flow Capacity
- Flow capacity depends on size and model; consult factory for exact SCFM ratings
Documentation
No drawing
Specifications
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