Solutions for Hydrogen

Protection for the most demanding hydrogen applications

Hydrogen Fuelling

Safety Valves - The essential safety component for hydrogen refueling

Hydrogen Generation

Protection for the most demanding hydrogen applications


For carbon-free hydrogen production

Hydrogen Storage

Safety Valves are your last line of defense

Safety in the Hydrogen Industry

Hydrogen is a versatile and clean energy source that has the potential to play a major role in the transition to a net-zero future. However, it is also a highly flammable gas, so safety is paramount when working with hydrogen. One of the most important safety devices in any hydrogen system is a safety valve.

Safety valves are designed to relieve excess pressure from a system, preventing equipment damage and catastrophic failure.  They are particularly important in hydrogen applications, where sudden pressure spikes can occur due to malfunctions or other causes.  Safety valves for hydrogen applications must be made of materials that are resistant to hydrogen embrittlement, a process that can weaken metals and make them more susceptible to failure.  Austenitic stainless steels and nickel-based alloys are commonly used for this purpose.




The Seetru range of valves for Hydrogen Applications

Quick Links:  Safety Relief Valves  |  Change-Over Valves  |  Hydrogen Enquiry Form

Seetru supplies safety relief valves suitable for a wide range of hydrogen applications, including hydrogen generation, fuel cells, compressors and pumps, fuelling systems, storage, pressure vessels, piping systems, and transportation.

These valves can withstand set pressures up to 1100 bar, making them ideal for use in even the most demanding hydrogen applications.  Seetru’s valves are designed to open quickly and reliably when the system pressure exceeds the set pressure, allowing excess gas to escape safely.  This helps to prevent damage to the system and protect personnel from injury.

Seetru’s safety relief valves are manufactured in accordance with the highest international standards and are available in a variety of materials and configurations to meet the specific needs of each application.


Supporting the full range of hydrogen applications:
  • Generation
  • Chemical and process industries
  • Compression
  • Storage and transmission (pressure vessels, receivers, and piping)
  • Fuelling systems
  • Power generation systems

Product Showcase

The Seetru High Pressure Safety Valve

The Type 94605/946H5/95605/956H5 features a compact and space-saving design, making it ideal for use in tight spaces.  It is also designed and built for repeatable operation, ensuring consistent performance over time.

Advanced sealing technology with a super-lapped hard-faced seat and disc provides robust high-performance sealing.  The product has a simple and robust design with three moving parts, making it easy to maintain.  It is also all wrought construction with no castings, for added durability.

Designed with Hydrogen embrittlement resistant materials (H2 option), making it suitable for use in harsh environments.

Product Description:
4.6mm Nominal Bore Enclosed Discharge Safety Relief Valve for Compressed Air & Gases – Including Hydrogen

Stainless Steel construction with metal or ceramic disc seal

Inlet connection options:
• BSP (male) max 515 bar
• BSPT (male) max 515 bar
• NPT (male) max 1034 bar
• Cone & Thread (female) max 1100 bar

View Technical Information for the Type 94605/946H5/95605/956H5

Safety Relief Valves for Hydrogen

Protect your pressurised systems with Seetru pressure relief valves

Seetru Safety Relief Valves

Safety Relief Valves

Seetru safety relief valves are now supplied UKCA-approved and marked

Change-Over Valves for Hydrogen

Find information about Seetru’s range of Change-Over Valves for Hydrogen

Change-Over Valves

Change-Over Valves

This valve is used if a plant shutdown is impossible or undesirable for process engineering or commercial reasons. With change-over valves, it is possible to switch over between parallel safety valves without interrupting operation, so that maintenance work can be carried out on each safety valve in turn.

Flanged inlet connections are also available on request.
Typically used in the refrigeration industry, however, they are used elsewhere and are suitable for wide industrial applications.

Find your relevant download

View or download information about Seetru products
for the Hydrogen Industry…


View or Download the Seetru Hydrogen Brochure

Find all the information you need about Seetru valves for hydrogen

View our range of useful downloads

The Seetru range of safety valves for compressed air and gas are compact, highly efficient, and incorporate the exclusive Tutchtite– -seal technology for repeatable bubble-tight sealing performance: designed for applications including air/gas compressors, specialist gas plants, chemical equipment and piping, pressure vessels, thermal relief and medical gases etc.
View or download the Seetru hydrogen product brochure by clicking the link below.

View Our Brochures & Catalogues View Or Download Hydrogen Brochure

Send us your Hydrogen Enquiry

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