Pilot Operated Check Valve for Pump Discharge Water Pipelines

For water supply, pump outlets, and industrial pipelines, swing or resilient seated check valves are recommended. Consider flow velocity, pressure rating (PN10/PN16), and installation orientation. For applications needing slow closure to prevent water hammer, choose slow-closing or damped check valves.

Check valves prevent backflow and protect pumps from reverse rotation in fire protection and pump stations. They close automatically when forward flow stops, ensuring system safety and maintaining pressure. Resilient seated or double-door check valves are popular for their reliable sealing and low pressure drop.

Standard check valves operate automatically with flow direction. For systems with frequent flow changes, silent or spring-loaded check valves are ideal as they close swiftly and quietly, reducing water hammer. High-quality designs with proper damping can manage demanding conditions well.

Check valves are essential in HVAC and chilled water systems for preventing reverse flow and safeguarding equipment like pumps and chillers. They offer low cracking pressure, tight shutoff, and minimal pressure loss while open. Their compact design and reliability maintain system efficiency and protect sensitive components from backflow damage.