Seetru Very High-Pressure

We are delighted to announce that Seetru has received approval for our Very High-Pressure (VHP) safety valve type 956H5 for pressures up to 1100 bar. This valve has been specially designed with a focus on hydrogen applications, but is also well-suited for use with air and other gases. Notably, it is approved for operating temperatures ranging from -196°C to 300°C, making it an ideal choice for high-pressure cryogenic applications.

The Seetru range of safety valves for hydrogen have been designed to be compact and highly efficient, offering repeatable performance protection for a wide range of systems and processes, and are suitable for all H2 applications, including ultra-pure hydrogen.

Key Features of the VHP Valve Type 956H5:
- Pressure Approval for up to 1100 bar
- Temperature Range from -196°C to 300°C
- Incorporates Seetru Tutchtite-seal technology for repeatable bubble-tight sealing performance.
- Ideal for air/gas compressors, specialist gas plants, chemical equipment and piping, pressure vessels, thermal relief, medical gases, and more.


Seetru supplies Safety Relief Valves suitable for the following hydrogen applications:
- Hydrogen generation – electrolysers.
- Hydrogen fuel cells
- Hydrogen compressors and pumps
- Hydrogen fueling systems
- Hydrogen storage
- Pressure vessels, receivers, and piping systems containing hydrogen
- Hydrogen transportation

View the detailed specifications in our VHP valve type 956H5 datasheet:

View Type 956H5 datasheet

For our complete range of valves designed for hydrogen:

View Range

Our valves are designed to protect, ensuring the integrity and reliability of your systems and operations. With a legacy spanning over 70 years, Seetru has built a reputation for excellence and trust. You can rely on our experience and expertise to safeguard your high-pressure systems, offering peace of mind in an ever-evolving landscape.

Stay tuned for more updates and innovations from Seetru!