HAM‑LET LET‑LOK Fittings, Male NPT, and HTC® Face Seal Bead
The H‑400A Series is a compact design for moderate‑pressure (up to 3000 psi) instrumentation panels and systems, which provides an accurate and adjustable operating point. H‑400A valves are normally closed. When the differential pressure between the inlet and the outlet is higher than the set pressure of the spring, the loaded poppet will move backwards and provide a free passage for flow through the valve.
