A21F, A21H-C type spring inching valve internal thread dimensions and connecting dimensions Valve Co., Ltd. is located in Shandong, China Everbright International Kite WEIFANG A21FA21H safety valve price, Jinan-Qingdao, Lai Wei-speed, Jinan Railway running through the urban A21FA21H valve manufacturers, transportation is very convenient. The company specializes in producing valve manufacturer, welcome new and old customers to order our products! When the equipment or pipeline pressure or temperature exceeds the set pressure relief valve, pressure relief or cooling Shandong automatically open the valve to ensure that equipment and piping within the medium pressure (temperature) in the set pressure (temperature) below the safety valve, protective equipment and pipe work, to prevent accidents and reduce losses. Valve Co., Ltd. Shandong Everbright valve manufacturer specializing in the production, welcome new and old customers to order our products! Safety valve opening and closing pieces by the external force is normally closed state, when the media pressure equipment or piping inside rises above a predetermined value, through the media outside of the system to prevent special valve discharge pipe or equipment exceeds the value of the medium pressure . Safety valves are automatic valves, mainly for boilers, pressure vessels and piping, control pressure does not exceed the value of personal safety and equipment operation plays an important protective role. A21FA21H inching valve | Everbright valve (certified) | safety valve provided by Shandong China Everbright Limited valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) Shandong Weifang, ball leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Everbright valve leadership with the staff warmly welcome all inquiries negotiations to create a better future for China Everbright valve.