1, the short length of the structure, the structure length of only the traditional flange check valve 1/4 to 1/82, small size, light weight, its weight is only the traditional flange check valve 1/4 to 1/203, valve valve closed fast, small water hammer pressure of 4, horizontal pipe or vertical pipe can be used, easy installation 5, flow smooth, fluid resistance 6, sensitive, good sealing performance 7, the valve stroke is short, close little impact 8 , the overall structure is simple and compact, attractive appearance 9, long life, reliable performance check valve, also known as a one-way valve or check valve, its role is to prevent the line of medium back. Pump water off the end of the valve also belongs to check class. Opening and closing pieces by medium flow and forces to open or closed to prevent the media back check valve called. Check valves are automatic valves, silent check valve, mainly used for one-way flow of media channels, only allowing media to flow in one direction, in order to prevent accidents. Typically, the fluid under pressure so that the valve opening of the valve, and flows from the inlet side of the outlet side. When the inlet side of the pressure lower than the export side, the check valve, the valve automatically shut down the channel under the action of gravity of the fluid pressure in and of itself, prevent fluid backflow. Press the valve movement in different ways, mainly divided valve lift, swing and butterfly three categories. Lift check valve and shut-off valve body much like its larger fluid resistance. Such small-diameter high pressure valve, often using spherical valve. Swing check valve for fluid resistance is small, the check valve pictures manufacturers generally applies to small and medium-caliber, low-pressure large-diameter pipe, often providing a plurality of the valve on the valve channel separator become Orange Peel. Butterfly valve similar to the shape of the butterfly. It is simple, small fluid resistance. Check valves closed too quickly could cause liquid hammer in the liquid pipeline, noise, and even cause damage to the valve parts. To avoid this, a buffer can be used if desired check valve function to extend the closing time. The check valve, Dingrui air conditioning (certification), the check valve is provided by wucheng Dingrui Air Conditioning Equipment Co., Ltd .. Wucheng Dingrui Air Conditioning Equipment Co., Ltd. (www.wcdrkt.com) (www.wcdrkt.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , the maximum meet customer needs. In Dingrui air conditioning leadership with the staff warmly welcome all inquiries negotiations to create Dingrui air conditioning better future.