HAM‑LET H‑400 series check valves provide automatic, one‑direction flow control to protect your instrumentation and process lines from reverse flow and system backpressure. Featuring a compact design with 316 stainless steel or brass body construction, these fixed cracking‑pressure check valves offer moderate‑ to high‑pressure capability up 3000 psi for H‑400 and up to 6000 psi for H‑400HP high‑performance models. With a choice of Let‑Lok tube fittings, male and female NPT, and HTC face‑seal bead end connections, H‑400 series check valves are well suited to panel and system installation in demanding industrial, gas, and fluid handling applications.
On this page you can explore our range of HAM‑LET H‑400 series check valves, review available cracking pressures, materials, and end connections, and select the right valve to safeguard your instrumentation and process systems against unwanted reverse flow.