butterfly check valve

The butterfly check valve is able to prevent medium from backflow. It is often used to stop medium backflow in pipeline for industries such as petroleum, chemical, hydraulic power generation. Features 1.The check valve can prevent medium from backflow. 2.Automatic Operation Mode :when the medium flows forward, the valve disc will be opened under the fluid pressure, when it flows backward, the disc will be closed under the action of fluid pressure and disc’s weight 3.The