Back pressure: the pressure relief valve outlet. Rated discharge pressure: standard discharge pressure upper limit. Sealing test pressure: inlet pressure seal test, in which pressure is measured by the leakage rate of the sealing surface of the closure member. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the 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, the stainless steel valves, 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. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Safety valve is the valve of a special branch of the family, valves, safety valves because of its particularity is different from the other merely acts as a switch valve, valve manufacturers, more importantly protect the safety of the device. With the rapid development of China's economic construction, the project works with a pressure control equipment is increasing. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Shandong Everbright valve (Figure), stainless steel valves, valve by valve Shandong China Everbright Limited. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) located in Weifang City, Shandong Province, Cravens District Bao Tong Street North Makers Industrial Park. Scraps and development in the wave of market economy, the current Everbright valve has a high profile in the ball, and enjoys a good reputation. Everbright valve made whole network business alliance certification, marking our service and management level has reached a new height. Everbright valve staff willing to work with all people of insight and common development, for a better future.