Pressure relief valves (PRVs) play a vital role in hydrogen production, acting as frontline defense that protect systems from dangerous overpressure conditions. Whether during production, storage, or transportation, PRVs are engineered to automatically release excess pressure, helping to prevent equipment failure, hazardous leaks, or catastrophic explosions. With hydrogen’s high flammability and volatility production, selecting and maintaining your PRVs are critical to ensuring operational safety.
Pressure Relief Valves for the Hydrogen Value Chain
Production & Liquefaction
Customer Challenges
- Safety valves for packaged Original Equipment Manufacturer (OEM) manufacturers, such as electrolyzers, purification systems, compressors, storage tanks, etc.
- Conventional service conditions (up to 50barg, 150°C) Compressor 250barg
- Liquid Hydrogen (LH₂) valves for cryogenic service (Storage tank, Pump) service conditions (up to 20barg, -253°C)
Emerson Solutions
- Crosbyâ„¢ OMNI, J-Series Valves, Type 81, HPP
- Anderson Greenwoodâ„¢ Type 81, J Series valves for LHâ‚‚ valve
- All conventional and LHâ‚‚ applications are tested for standard and cryogenic test benches, respectively, at the Emerson facility to demonstrate
Complete Solution for Hydrogen Eco System
Operational Risks & Safety Demands
Maintaining fast, accurate pressure relief to prevent equipment damage and ensure safety during overpressure events.
Preventing hydrogen leakage to reduce product loss and mitigate fire and explosion risks.
Ensuring reliably under extreme pressure and cryogenic temperatures to ensure consistent system integrity.
Emerson’s Technical Response
American Society of Mechanical Engineers (ASME)-certified for high-pressure applications up to 22,000 psig, ensuring regulatory compliance and operational confidence.
Advanced cartridge design with concentric, self-aligning trim and premium materials for consistent seat tightness and optimal performance.
Rigorous high-pressure and cryogenic testing for H₂ and LH₂ applications at Emerson’s QingPu facility, ensuring reliability in extreme conditions.
Performance Outcomes
Ensures compliance with global safety and quality standards through ASME certification.
Provides fast and reliable overpressure protection at high pressures and cryogenic temperatures to enhance system safety.
Delivers premium performance with consistent seat tightness and minimal blowdown to reduce product loss and operational costs.
Simplifies maintenance with a user-friendly cartridge assembly to minimize downtime.
Demonstrates proven reliability with a strong track record and trusted references across industries.
Type 84: Engineered for Hydrogen Safety
The Anderson Greenwoodâ„¢ Type 84 Pressure Relief Valve delivers exceptional leak-tight performance for hydrogen gas applications, ensuring safe and reliable operation from storage through to dispensing at refueling stations. With the highest flow capacity in its class, Type 84 enables rapid pressure relief during overpressure events, making it a trusted solution for critical hydrogen infrastructure.
Frequently Asked Questions About Hydrogen
Valves used for hydrogen service must withstand high pressure, prevent leakage, and ensure material compatibility to avoid embrittlement.
Hydrogen leaks are critical because hydrogen is:
- Highly flammable and forms explosive mixtures in air at low concentrations
- Odorless and colorless, making leaks difficult to detect
- Lightweight, which allows leaks to disperse quickly but also accumulate in enclosed spaces
The Anderson Greenwood Type 84 PRV is designed to minimize leak risks, ensuring reliable performance in high-pressure hydrogen systems.
