Butterfly Double Flap Check Valve
Butterfly double-flap check valve depends on the flow of the medium itself and automatically open and close the valve flap, used to prevent the medium backflow and water hammer effect.
The two flaps rotate around the center valve axis, like two sliding doors, and at the same time is equipped with a spring, boosting the two flaps to the direction of the valve closure movement.
Butterfly check valve has a simple structure, can only be installed in the horizontal pipeline, and the sealing is relatively poor, the use of its sealing requirements are not high;
Applicable to urban, industrial and high-rise building water supply and drainage pipeline network, the structure length is shorter than the rotary check valve, installation is more convenient.