Check valves

Spirax Sarco check valves help keep steam, condensate, water and process systems flowing in one direction only, protecting lines and connected equipment from reverse flow. Used correctly, they can help protect flowmeters, control valves and other sensitive plant hardware while also reducing upset conditions that shorten equipment life. Typical design drivers include reducing hydraulic shock and waterhammer, preventing flooding during shutdown or gravity drain-down, relieving vacuum conditions and lowering cross-contamination risk in process applications. The range includes compact disc, guided-disc, lift and sanitary check valve designs so the installation can be matched to fluid type, orientation, pressure conditions and hygiene requirements. These valves are used widely across pharmaceuticals, food and beverage, shipbuilding, power generation, institutions, pulp and paper and textile processes where dependable non-return protection is part of normal plant reliability. In practice, check valve choice usually sits alongside upstream strainers, downstream isolation and application-specific line protection rather than as an isolated component decision.