One check valve still acts even if the other is jammed wide open. Also, the closure of one valve reduces the pressure differential across the other, which allows a more reliable seal and avoiding even minor …

Designed for use in non-health hazard cross-connections and continuous pressure applications subject to backpressure or backsiphonage incidents, such as lawn sprinklers, fire sprinkler lines, commercial …

Sep 10, 2025 · A double check valve consists of two independent check valves in series, providing redundant backflow prevention. During forward flow, both valves open sequentially. If backflow …

A double check valve is an essential backflow prevention device designed to safeguard your water supply from contamination. These valves consist of two separate check valves assembled in a way …

May 27, 2025 · What is a double check valve? A double check valve assembly is a plumbing device that includes two check valves in series, serving the critical purpose of preventing backflow and …

Jan 29, 2025 · A double check valve assembly consists of two independently acting check valves installed in series. These check valves are spring-loaded, allowing water to flow in only one direction …

A double check valve is a mechanical backflow protection device. Comprising of two single check valves in series, a double check valve permits water to flow from upstream to downstream but not in the …

For maximum protection from system contamination, these valves have two integral check valves with a vent between them. If the primary check valve fails to close when flow stops or reverses, overflow is …

Depending on the type of Dual Check valve, the intended applications range from residential water systems at the service entrance, fire sprinkler systems and beverage machines.

Jan 22, 2025 · What is a Double Check Valve? A double check valve is a type of backflow prevention device designed to prevent contaminated water from entering a potable water supply. It consists of …