200 WOG Check Valve

A 200 WOG check valve is an automatic non-return valve engineered for low-to-medium pressure fluid lines where "WOG" designates its maximum rating of 200 psi for Water, Oil, or Gas service at ambient temperatures. Usually cast from durable brass, bronze, or ductile iron, it utilizes a swing disc or lift plug mechanism that permits forward flow and instantly closes under backpressure to protect upstream pumps and meters. Conforming to standards like MSS SP-80 or ASME B16.34, this economical valve is a standard specification across municipal plumbing, light industrial utility lines, and civil water distribution manifolds. Piping layout contractors and building service engineers can safeguard pumping systems against low-pressure backflow by importing certified 200 WOG check valves directly from premier manufacturers in China via our advanced B2B commercial platform.