Back seat pressure: After the discharge valve to re-engage with the valve seat, that is, the opening height becomes zero in inlet pressure. Blowdown: opening pressure and differential pressure of the back seat, usually expressed as a percentage of the back seat pressure and opening pressure only when using the pressure difference between the two to represent the low opening pressure. Shandong Everbright Valve Co., Ltd. specializes in producing steel valve valve manufacturer prices, welcomed the new and old customers to order our products! Discharge pressure: the valve inlet pressure reaches a predetermined height when open. The upper limit discharge pressure required to obey the requirements of the relevant standards or specifications country. Over pressure: discharge pressure and valve opening pressure difference between the steel supplier, usually expressed as a percentage opening pressure. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Valve general form of the structure is divided into spring safety valve and lever safety valve, pulse valve cast steel valves vendors, including the most common spring safety valve; press connection into threaded flange valve and valve . Valve diameter are generally not large cast steel valves, commonly used in DN15mm-DN80mm between more than 150mm generally called large-diameter valve. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Cast steel valves | Shandong Everbright valves | cast steel valves manufacturer in Shandong, China Everbright Ltd provided by the valve. 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!