Valve structure are two major categories: spring and leveraged. Spring means sealing valve and valve seat by spring force. Leveraged rely on leverage and weight force. With the large capacity needs, but also a pulsed valve safety valve in Weifang, Shandong Province, also known as pilot safety valve A27H inching valve springs from the main valve and auxiliary valve. Valve Co., Ltd. Shandong Everbright Shandong factory specializing in the production valve valve, welcome new and old customers to order our products! Opening pressure adjustment: ① former factory valve safety valve should be adjusted by one of its opening pressure to the setting value of user requirements. If the user make spring working pressure level, the lower limit should apply general level of the factory adjustment pressures. ② users before the safety valve is installed on the protected equipment or before the installation, you must re-adjusted at the installation site, in order to ensure the safety valve set pressure value to meet the requirements. Everbright valve type valve _ _ Ltd. Shandong A27H safety valve provided by Shandong Everbright valve. Valve Co., Ltd. Shandong China Everbright (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!