QH-8002

size:

1/2" 3/4"
1" 1 ¹ 4"
1 ¹ 2"
twenty two ¹ /2
3" 4"

The check valve is a valve that automatically opens and closes the valve flap depending on the flow of the medium itself, and is used to prevent the backflow of the medium, also known as wafer check valve, wafer check valve, reverse flow valve, and back pressure valve. The check valve is an automatic valve whose main function is to prevent the backflow of the medium, the reverse rotation of the pump and the drive motor, and the release of the medium in the container.