Valve pipe before there media, such as improper operation will cause pump impeller Rewind

Reducing structural characteristics of the design check valve check valve is to rely on the media selected energy afloat turned off automatically when backflow valve. Petrochemical  Valve manifolds  the installation of the pump outlet check valve, the past is the main and standby pumps were equipped with a check valve, are installed in horizontal pipelines, far away from the pump, check there before the pipeline medium, such as improper operation, will cause pump impeller reversed. According to  High pressure ball valve  & Chemical Corporation, the industry standard requirements, each pump check valve must be installed, and require as close to the pump, mounted on the front of the pump outlet valve. Click here to claim  Compression fitting , structure, length is too long, resulting in the pump outlet valve height is too high, causing inconvenience to the operation and maintenance; simultaneously swing check valve is easy to produce water hammer pressure drop Japanese have not any position installation disadvantages. To reduce the height of the outlet valve in the structure, so preventing water hammer, lower pressure drop, with the domestic pump characteristics and process requirements, the development of a new type of valve, the valve diameter.