300 PSI Gate Valve

A 300 PSI gate valve is a multi-turn, linear-motion isolation valve designed, constructed, and certified to handle a maximum cold working pressure (CWP) of 300 PSI (approximately 20.7 bar). Typically cast from ductile iron or bronze, this valve uses a solid or flexible wedge driven perpendicular to the fluid flow to achieve a tight shut-off with zero pressure drop and minimal flow resistance when fully open. Commonly specified in commercial and municipal installations where working pressures exceed the standard 150 PSI utility ratings, it is widely utilized in fire protection systems (often in an Outside Screw and Yoke / OS&Y configuration), municipal water treatment lines, and high-rise commercial plumbing. Municipal contractors and building developers can secure high-pressure water mains by importing certified 300 PSI gate valves directly from leading manufacturers in China via our advanced B2B commercial platform.