Stop Check Valve for Prevents Reverse Flow, Maintenance Or Isolation

The Stop Check Valve combines the positive shut‑off capability of a globe valve with the non‑return function of a check valve, all in a single compact unit. Its precision‑machined body—typically cast carbon steel, stainless steel, or bronze—houses a spring‑loaded disc that automatically prevents reverse flow but can also be manually closed via a handwheel or actuator for maintenance or isolation. Available in sizes from ½″ to 12″ (DN15–DN300) and pressure ratings up to ANSI Class 600, it offers tight sealing against back‑pressure and minimal leakage. End connections include flanged, threaded, or butt‑weld to suit piping systems, while the replaceable soft or metal seats ensure long service life. Ideal for steam, water, oil, and gas applications, the stop check valve simplifies install footprint and reduces potential leak points by integrating two valve functions in one.