Check Valves H-400 Series

UCT Fluid Solutions

  • Bar-stock 316 St.St. or brass construction options
  • Pressure rating of up to 6000 psi (410 bar)
  • The check valves H-400 series have a compact design.
  • Variable fixed cracking-pressure springs
  • LET-LOK®, Male & Female NPT, and HTC® Face-Seal Bead Ends.

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Check Valves H-400 Series

  • The check valves H-400 series is a compact design for instrumentation. H-400 valves are normally closed. When differential pressure between the inlet and outlet is higher than the set pressure of the spring, poppet opens to enable a free passage of flow through the valve.
  • For vacuum applications please select H-400HP series.
  • Every H-400 series check valve is cleaned in accordance with Standard Cleaning and Packaging (procedure 8184). Oxygen Clean & Lubricant-Free Cleaning and Packaging, in accordance with Special Cleaning and Packaging (procedure 8185), is available as an option.
  • The H-400 valve designs have been tested for pressure and burst. Every H-400 valve is factory tested for proper assembly with nitrogen at 1000 psig (68 bar) for 10 seconds. Every H-400 valve is factory tested for functionality at the relevant cracking pressure, 5 cycles each. No detectable leakage is allowed during shell test.

Key features

  • The H-400 Series includes compact design check valves for instrumentation panels and systems, which provides an accurate operating point. H-400 valves are normally closed. When differential pressure between the inlet and outlet is higher than the set pressure of the spring, the loaded poppet will move backward and enables a free passage of flow through the valve.
  • At UCT Fluid Solutions we have 6 series of check valves with different features
    • H-400 General purpose fixed cracking pressure check valve (MAWP 3000 psig)
    • H-400 HP High-performance fixed cracking pressure check valve (MAWP 6000 psig)
    • H-400 CNG ECE R110 Approved for the CNG / NGV fixed cracking pressure check valve (MAWP 3770 psig)
    • H-400 OP Compact one-piece fixed cracking pressure check valve (MAWP 3000 psigs)
    • H-400 OPA One-piece adjustable cracking pressure check valve (MAWP 3000 psig)
    • H-400 A Adjustable cracking pressure check valve (MAWP 3000 psig)

Product variants

UCT Check Valves H-400 series 1

Application areas

  • Electrolysis
  • Hydrogen storage
  • Fuel cell stations
  • Process system control and shut-off

Contact us

  • Please see the technical datasheet under downloads for mounting configuration of the screwed bonnet needle valve (H-300U series). Fill out the contact vendor form to contact us today.
Brand UCT Fluid
Manufacturing Readiness (MRL) 0
Technology Readiness (TRL) 0
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