Safety valve discharge pipe to be fixed so as not to cause excessive valve additional stress or vibration caused. Outdoor installation of the safety valve, to be provided to prevent the temperature is below 0oC, the medium contained within the valve water freezing measures affecting reliable safety valve emissions. When the safety valve medium temperature is higher than the lowest ambient temperature crystallization, safety valve must have insulation jacket and install insulation purge steam valve safety valve to prevent the media crystallization blockage, affecting the normal operation performance of the valve. Import and export pipeline safety valves must be designed with a steam jacketed pipe insulation or increase the insulation with steam pipes, to prevent crystallization medium clogging pipes. Faults and eliminate (1) does not return after the discharge valve seat. This is mainly a spring bent stem, valve installation caused by malposition or stuck. It should be re-assembled. (2) less than the required pressure is on. The main constant pressure allowed; spring stretch down the aging. It should be properly tightened adjustment screw or replace the spring. (3) valve frequency hopping or vibration. Mainly due to the stiffness of the spring is too large. You should use the appropriate spring stiffness; adjustment ring to adjust properly stainless steel valves, so back seat pressure is too high. Should readjust the position of the adjustment ring; discharge piping resistance is too large Weifang valve, resulting in excessive emissions of back pressure. Discharge pipe resistance should be reduced. 1. faults and eliminate leaks. Valves wholesale, exceed the allowable level of leakage between the valve seat sealing surface equipment to work under pressure. The reasons are: dirt between the valve seat sealing surface. You can use a wrench to open the valve lift several times, rushed to the dirt; sealing surface damage. Should be based on the degree of damage, the use of grinding or turning grinding method to repair; stem bending, tilting or deflection lever and fulcrum, the valve body and the valve flap dislocation. Should be re-fitted or replaced; spring elasticity or loss of elasticity. Should be taken to replace the spring, readjust the opening pressure and other measures. Weifang valves | valves | safety valve A28H Everbright (view) Ltd. by Shandong Everbright valve. "Valve" preferred Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com), the company is located: Cravens District Weifang City, Shandong Province, Bao Tong Street North Makers Industrial Park, over the years, the group valves to provide customers with the best quality service, contact People: Manager Ma. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Everbright valve expect to be your long-term partner!