HAM‑LET H‑900 series relief valves are designed to automatically protect your systems from overpressure by opening at a pre‑set pressure and resealing once the pressure drops back to a safe level. Constructed from 316 stainless steel and available with NPT/BSPT pipe threads and Let‑Lok compression connections, H‑900 low‑pressure models cover set pressures from 10 to 225 psig, while H‑900HP high‑pressure versions extend the set pressure range up to 6000 psig for more demanding applications. These compact relief valves are suitable for gas and liquid duties in instrumentation and process systems where pressure excursions could cause process issues, equipment damage, or safety risks.
On this page you can explore our HAM‑LET H‑900 and H‑900HP relief valves, review available set‑pressure ranges, materials, end connections, and certifications, and select the right overpressure protection solution for your instrumentation and process installations.