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Description
Generant Series Brass CRV Cryogenic Relief Valve | USA Lab
The Generant Series Brass CRV Cryogenic Relief Valve is a spring reference over-pressure protection device designed for cryogenic systems, blocked line safety, and demanding gas service applications. Built with a compact brass body and factory preset relief pressure, this valve delivers reliable pressure protection where field adjustment is not permitted.
The CRV incorporates Generant’s exclusive Dirt Guard feature, which helps improve tolerance to particulate contamination and supports long-term valve reliability. Seat and poppet geometry, combined with optimized spring ranges, provide high flow capacity with minimum pressure accumulation and excellent reseat performance.
Each Generant Series Brass CRV Cryogenic Relief Valve is 100% factory tested for leakage, crack, and reseal performance, then cleaned and packaged for oxygen service. Discharge can be routed to atmosphere or to a downstream connection depending on the selected configuration.
Relief pressure is factory preset and cannot be altered or adjusted in the field. Valve selection depends on required set pressure, seal material, and inlet/outlet configuration.
Cryogenic Relief Valve Factory Preset Oxygen Service Cleaned Brass Construction
Set Pressure: 10–750 PSIG — factory preset and non-adjustable.
Temperature Range: -320°F to 350°F based on seal material.
Service: Cleaned and packaged for oxygen service.
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Why this Generant Series Brass CRV Cryogenic Relief Valve?
- Cryogenic system protection — ideal for use as blocked line safety in cryogenic piping and equipment.
- Dirt Guard reliability — exclusive poppet design incorporates a screen to help tolerate particulate contamination.
- Factory preset safety — supplied preset and permanently locked for tamper-proof service.
- High flow performance — seat, poppet, and spring design provide high flow rates with minimum pressure accumulation.
- Flexible discharge options — discharge to atmosphere or connect to a variety of inline piping configurations.
Talk to an expert
Get sizing help, set pressure selection support, and compatibility guidance for your cryogenic system.
Technical Specifications
| Model | Generant Series Brass CRV Cryogenic Relief Valve |
|---|---|
| Nominal Set Pressure Range | 10–750 PSIG (0.7–51.7 Bar), not adjustable |
| Factory Set Tolerance | ≤ 28.90 PSIG: ±5%; 29.00–48.30 PSIG: ±1.45 PSIG; ≥ 48.40 PSIG: ±3% |
| Zero Leakage | To 95% of set pressure |
| Full Rated Flow | At 110% of set pressure |
| Back Pressure | Unaffected by up to 10% back pressure |
| Materials of Construction | Brass body construction |
| Reseat | 90% of set pressure; 85% for PCTFE seal set below 100 PSIG (6.9 Bar) |
| Temperature Rating | -320°F to 350°F (-196°C to 176°C), based on seal material |
| Seal Material | Fluorosilicone for 10–49 PSIG; PCTFE for 50–750 PSIG |
| Lubricant | Krytox® |
| Testing | 100% factory tested for leakage, crack, and reseal |
| Compliance Option | Available CE marked in accordance with PED requirements |
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FAQ
What is the Generant Series Brass CRV Cryogenic Relief Valve used for?
The Generant Series Brass CRV Cryogenic Relief Valve is used for over-pressure protection in cryogenic systems and is ideally suited for blocked line safety applications.
Can the Generant Series Brass CRV Cryogenic Relief Valve be adjusted in the field?
No. The Generant Series Brass CRV Cryogenic Relief Valve is factory preset and permanently locked. The relief pressure cannot be altered or adjusted in the field.
Is the Generant Series Brass CRV Cryogenic Relief Valve cleaned for oxygen service?
Yes. The Generant Series Brass CRV Cryogenic Relief Valve is supplied cleaned and packaged for oxygen service.
What seal materials are used in the Generant Series Brass CRV Cryogenic Relief Valve?
The Generant Series Brass CRV Cryogenic Relief Valve uses Fluorosilicone seals for 10–49 PSIG set pressures and PCTFE seals for set pressures greater than 50–750 PSIG.
Important Shipping Notice!
DISCLAIMER:
All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.
Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.
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