What Does Check Valve Do - A check valve is a type of valve that automatically prevents backflow. A clapper hangs from a hinge, clapper.
A clapper hangs from a hinge, clapper. A check valve is a type of valve that automatically prevents backflow.
What Does Check Valve Do - A check valve is a type of valve that automatically prevents backflow. A clapper hangs from a hinge, clapper.
A clapper hangs from a hinge, clapper. A check valve is a type of valve that automatically prevents backflow.