Valve is one of the most common open and close the valve, the use of the gate (ie, valve opening and closing parts outlets, opening and closing pieces in ram called gate or gates, sluice gate called Block Block) to turn ( full) or truncated (fully closed) line of medium. It does not allow use as a closure, use should be avoided in the gate open trace Wafer Check Valve, because high-speed flow of medium erosion will accelerate damage the sealing surfaces. German double gate perpendicular to the centerline of the channel gate seat as one-sided movement at the same disconnect the line as the gate dielectric, it is called the gate. 1, selected materials, in line with domestic and international standards valve, high overall quality of the material. 2, in line with the requirements of domestic and foreign advanced standards, reliable sealing, excellent performance, attractive appearance. 3. Sealing pair advanced and reasonable, gate and seat sealing surface with different hardness Stellite (Stellite) cobalt-based alloy cladding made of reliable sealing, high hardness, wear resistance, high temperature resistance, corrosion resistance good anti-abrasion performance and long life. 4, stem quenched and surface nitriding treatment, good corrosion resistance, scratch resistance and abrasion resistance. 5, the use of flexible wedge gate valve structure manufacturers, medium and large caliber set of thrust bearings, friction force is small, and with a strike manually open and close with ease. 6, can be a variety of standard pipe flanges and flange sealing surface forms to meet various project needs and user requirements. Lift check _ British electromechanical (certified) _ check provided by City Electrical Equipment Co., Ltd. of England. England City Electrical Equipment Co., Ltd. (www.gdyinglun.com) is a leader in Dongguan, Guangdong, hydraulic machinery and parts, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In England electromechanical leadership with the staff warmly welcome all inquiries negotiations to create a better future for the British electrical and mechanical.