Enclosed Discharge Safety Relief Valves for Hydrogen - Type 646/641

Seetru Limited

  • Temperature: -40°C to +200°C (depending on seal material)
  • Pressure Range: 0.32 to 55.2 Bar (depending on bore size)
  • Available with a range of bore sizes, material options, and connection types
  • Certified for a wide range of temperatures & pressures
  • Can be customized according to customer requirements

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Enclosed Discharge Safety Relief Valves for Hydrogen - Type 646/641

  • 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 prioritises rigorous testing and analysis, ensuring exceptional valve performance across diverse applications. Their keen understanding of various industries allows us to tailor valves to specific needs. By combining cutting-edge design, unparalleled expertise, and application-specific solutions, we have established ourselves as a leader in the safety valve industry. 
  • Safety Valves with Stainless Steel Body.
  • Enclosed Discharge Valve with Threaded Connections.
  • Enclosed Discharge Safety Relief Valve for Compressed Air & Gases also.

Key features

  • Reliable and safe across a wide range of industrial applications.
  • Safety valves available with a range of bore sizes, material options, and connection types.
  • Safety valves are approved for a wide range of temperatures & pressures
  • Sealing materials FFKM also available

Technical Specifications

  • Available with 10, 13, 18, 20 or 25mm Nominal Bore
  • Inlet connections: 3/8” to 1 1/2” (depending on bore size)
  • Temperature: -30°C to +200°C 
  • Pressure range: 6.6 to 55.2 bar (depending on bore size) 
  • Designed in accordance with BS EN ISO-4126-1 & -7
    • PED 2014/68/EU (CE)
    • PE(S)R UK SI 2016 No. 1105 (UKCA)
    • ASME BPVC VIII.1 & XIII (UV)
    • CRN
    • EAC

Application areas

  • Hydrogen generation
  • Fuel cells
  • Compressors and pumps
  • Fuelling systems
  • Hydrogen storage
  • Pressure vessels
  • Piping systems
  • Transportation

Contact us

  • By combining cutting-edge design, unparalleled expertise, and application-specific solutions, Seetru has established themselves as a leader in the safety valve industry. Interested? Please contact the Vendor directly by filling in the contact form. 
Brand Seetru
Max Pressure (in bar) 55.2
Min Pressure (in bar) 0.32
Manufacturing Readiness (MRL) 10
Technology Readiness (TRL) 9
Max Ambient Temperature (in °C) 200
Min Ambient Temperature (in °C) -40
Seetru Limited

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.

99% of all inquiries get answered within 5 days. Your inquiry will be sent immediately to the right person within the vendor organisation.

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By ticking the checkbox, you consent to the collection and storage of the data you have provided for the purpose of contacting and answering your request in accordance with our Privacy Policy. You can revoke your consent at any time by sending an email to bye-bye@hyfindr.com.

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