Single and Double Check Valves permit flow in only one direction and close automatically if flow reverses. They are suitable for domestic and commercial water systems. Spring assistance enables the valve to be installed in horizontal or vertical pipework, while simultaneously preventing backflow.
The Swing Check Valves are entirely automatic in action, depending upon pressure and velocity of flow within the line to perform their functions of opening and closing. A disc inside the valve allows the liquid to flow comfortably, but shuts when the liquid attempts to change direction, thus preventing backflow.