Valve general form of the structure is divided into spring safety valve and lever safety valve, pulse valve, where the most common spring safety valve; press connection into threaded flange valve and safety valve. Valve diameter are generally not large, the most common are between DN15mm-DN80mm than 150mm generally called large-diameter valve. Shandong Everbright Valve Co., Ltd. specializes in producing valve manufacturer cast steel valves, welcome new and old customers to order our products! Valve play a security role in the system. When the pressure exceeds a predetermined value, the valve is opened, the system portion of the gas / fluid into the atmosphere / pipe outside, so that the system pressure does not exceed the allowable value, in order to ensure the system is not due to excessive pressure and accidents. Shandong Everbright Valve Co., Ltd. specializes in producing valve manufacturer valve sales, welcomed the new and old customers call to order our products! Safety valve opening and closing pieces by the external force is normally closed position of the valve, when the media pressure equipment or pipeline inside rises above a predetermined value, through to the outside of the system to prevent the discharge medium medium pressure piping or equipment exceeds the value of the special valve. Safety valves are automatic valves, mainly used in boilers, pressure vessels and piping, control pressure does not exceed a predetermined value, for personal safety and equipment operation plays an important protective role. Shandong wholesale valve, the valve, the valve is provided by Shandong Everbright Everbright Valve Co., Ltd., Shandong. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) strong, credible, Shandong Weifang ball industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Everbright valve into the brilliant and you work for a better future!