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HAM-LET H400 CHECK VALVES |
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To download a PDF of the Ham-Let H400 Check Valves section (115 kb) please click on the PDF icon - >
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FEATURES
- 316 St.St. End Brass Construction
- Moderate Pressure Characteristics (up to 3000 psi)
- Compact Design
- Interchangeable Parts
- Variable fixed cracking-pressure springs
- HAM-LET LET-LOK®, Male & Female NPT, and HTC® Face-Seal Bead Ends
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GENERAL
The H400 Series is a compact design for instumentation panels and systems, and provides an accurate operating point. H400 valves are normally closed. When differential pressure between inlet and outlet is higher than the set pressure of the spring, the loaded poppet will move backwards and will provide a free passage of flow through the valve.
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| HAM-LET H400 CHECK VALVES |
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| HAM-LET H400 CHECK VALVES PRESSURES AND DIMENSIONS |
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CRACKING PRESSURE
The differential pressure between inlet and outlet, at which an initial flow is passing through the valve.
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RESEAL PRESSURE
The differential pressure between outlet and inlet, at which no flow is passing through the valve.
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| HAM-LET H400 CHECK VALVES ORDERING INFORMATION |
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CLEANING & PACKAGING
HAM-LET H400 valves are treated with HAM-LET Passivation, Cleaning and Packaging (Procedure 8075). HAM-LET H400 Valves with face seal end connections are treated with HAM-LET Oxygen Cleaning and Packaging (Procedure 8055). Oxygen cleaning and packaging for other end connections are available as an option.
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TESTING
The H400 valve designs have been tested for Proof and Burst. Every H400 valve is factory tested for proper assembly, by leakage detection at 1000 psig (68 bar) for 10 seconds. Every H400 valve is factory tested for functionality at the relevant cracking pressure, 5 cycles each.
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To download a PDF of the Ham-Let H400 Check Valves section (115 kb) please click on the PDF icon - >
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