Class 900 LB Check Valve is designed to operate within pressure ratings of up to 900 LB (approximately PN150). Acting as a one-way valve, it facilitates fluid flow in a single direction while preventing the reverse flow of fluid to maintain system efficiency and protect equipment integrity. These valves are commonly employed in various industrial applications, including refineries, petrochemical plants, and water treatment facilities, where they serve to regulate fluid flow and prevent backflow in high-pressure environments.

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