Valve installation and maintenance should note the following construction, installation points 1), the installation location, height, and export orientation must meet the design requirements, note the direction of media flow valve should be consistent with the direction of the arrow mark, the connection should be firmly tight. 2), must be visually checked before Weifang valve valve installation, the valve plate should comply with the provisions of the current national standard GB 12220 "Universal Valve logo." For working pressure greater than 1.0 MPa and the role played off the main pipe valves should be installed before the strength and rigorous performance tests, passing behind the prospective use. Strength test, the test pressure is 1.5 times the nominal duration of not less than 5min, the valve housing, packing should be no leakage as qualified. Tightness test, the test pressure for the nominal pressure of 1.1 times; the test duration in line with the requirements of GB 50243 1. All kinds of safety valve should be installed vertically. During normal use of the valve and verify, due to the design, manufacture or improper use can cause a variety of failures. These failures are not promptly removed, will affect the efficacy and safety valve life, serious but also endanger the lives and safety of the user. 1, the valve leaks. Exceed the allowable level of leakage, causes and solutions occur valves and valve seat sealing surface: a, leakage because of stolen goods Shandong with radiator spring safety valve between the valve and seat sealing surface, can be washed down several times to open the valve on the line. b, Shandong valve sealing surface damage, the extent of damage can be repaired using abrasive grinding or turning method. c, curved stem, tilt Den. Should be re-assembly or replacement valve is a limited special equipment (boilers, pressure vessels, pressure piping, etc.) on the pressure relief plays an important role in the security annex. General safety valve mounted directly on the special equipment, his design, manufacture, installation, use, testing, and other special equipment must comply with the relevant requirements, because it moves the reliability and performance is directly related to the equipment and personal security, and is closely related to energy conservation and environmental protection. Safety valve, safety valve, the valve models with radiator springs Everbright Ltd. Shandong Everbright provided by the 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!