Operating Principle of H76J-16Q Butterfly Rubber Lined Check Valve

Operating Principle of H76J-16Q Butterfly Rubber Lined Check Valve

Butterfly rubber lined check valve is also known as rubber lined wafer check valve. In the wafer rubber lined check valve, the two valve clacks rotate around the middle valve shaft, like two sliding doors, and are equipped with springs to push the two valve clacks to move in the direction of valve closure. Butterfly rubber lined check valve automatically opens and closes the valve clacks depending on the flow of the media itself, to prevent the backflow of media and the hammer effect of aquatic products, The rubber lined butterfly check valve has a simple structure and can only be installed on the horizontal pipeline. Moreover, its sealing performance is relatively poor, and its sealing performance is not required in use.

Butterfly rubber lined wafer check valve - Shanghai Yonglong Valve Factory

   H76J-16Q Butterfly rubber lined check valve The main function of this type of valve is to prevent the medium from flowing back and the pump and drive motor from reversing and damaging the equipment. The function of this type of valve is to allow the medium to flow in one direction only and prevent the flow in the opposite direction. The wafer lined butterfly double flap check valve is suitable for chemical, industrial, power, water supply and drainage pipe networks. Its structural length is shorter than that of swing check valve, and its installation is more convenient.

Wafer butterfly rubber lined check valve - Shanghai Yonglong Valve Factory

Operating principle of H76J-16Q butterfly rubber lined check valve:

Butterfly double disc check valve is composed of valve body, valve disc, valve stem, pressure spring and other parts. The valve disc can be made of metal or wrapped with rubber, depending on the requirements of service performance, and the clamp connection mode is adopted. When the medium flows in the forward direction, the medium pressure overcomes the elastic force of the torsion spring, and the valve disc rotates and opens. When the medium flows in the reverse direction, the valve disc closes under the combined action of the pressure of the reverse medium and the elastic force of the torsion spring. Because the valve disc is disc shaped and rotates around the rotating shaft of the valve seat channel, because the channel inside the valve is streamline, the flow resistance is smaller than that of the lift check valve, the closing stroke of the valve disc is short, and there is spring loading, which can significantly reduce the water hammer phenomenon.