The HC41X silent check valve is designed for automatic reverse-flow protection in water and pump systems. Its closing arrangement helps the valve respond as forward flow falls, reducing the abrupt closing action associated with conventional check valves.
The model shown has a cast iron body with brass disc and seat components. Flanged connections make it suitable for installation in water supply and circulation pipework.
HC41X Silent Check Valve Flanged - Cast Iron
Valve Body: cast iron
Bonnet: cast iron
Disc Material: brass
Seat: brass
Nominal Diameter DN: 40-400mm
Closing Response in Pump Systems
Pump shutdown changes both the velocity and direction of flow. A silent check design responds as forward flow decreases, helping limit the noise and pressure disturbance caused by abrupt closure.
The HC41X is intended for this type of non-return duty in water systems. Valve sizing and the behaviour of the wider pipe network remain important where pressure surges are a concern.
Farpro supplies HC41X silent check valves for water supply and pump installations. Contact us with the required size and pipeline specification for a quotation.