Q:Why Install a Dual Plate Check Valve?
The primary purpose of installing a dual plate check valve is to prevent reverse flow and protect system components. When fluid flows in the forward direction, the plates open automatically; when reverse flow occurs, the spring-loaded plates close quickly to stop backflow.
Compared with traditional swing or lift-type check valves, the dual plate check valve offers a compact design, lightweight structure, low pressure drop, quick closure, and excellent water hammer prevention. These advantages make it ideal for both horizontal and vertical installations in systems such as cooling water systems, water supply and drainage, petrochemical plants, seawater desalination, marine pipelines, and HVAC systems.
Installing a dual plate check valve enhances system efficiency and safety, extends equipment life, and reduces maintenance costs—making it one of the most economical and reliable backflow prevention solutions in modern piping systems.
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