Spring safety valve, safety valve, Everbright valve (View) provided by Valve Co., Ltd. Shandong China Everbright. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) is specialized in the "valve" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Manager Ma. Electricity industry standard "Electric Power Industry Boiler and Pressure Vessel Supervision Regulation" (DL612-1996) 9.1.13 check valve instrument expressly provides: "purely mechanical spring safety valve can be used to adjust the hydraulic system verifies the entire Kai spring safety valve, usually at 75% to 80% of rated pressure. After the hydraulic unit after adjustment valve valve manufacturer, should be at least the minimum safety valve seat from the actual values ??from the seat review. "1. faults and eliminate leaks. Under normal operating pressure equipment, exceeding the allowable level of leakage between the valve and valve seat sealing surface. The reasons are: dirt between the valve and valve seat sealing surface. Can be used to enhance the wrench to open the valve several times, rushed to the dirt; sealing surface damage. Should be based on the extent of damage, the use of grinding or turning grinding methods to be repaired; stem bending, tilting or lever and fulcrum skewed, so that the valve spool and dislocation. Should be re-fitted or replaced; spring elasticity or loss of elasticity. Should be taken to replace the spring, re-adjust the opening pressure and other measures.