You speed, the pressure continues to rise after encountering faults and eliminate exhaust Valve Co., Ltd. Shandong China Everbright. This is mainly because the safety discharge valve displacement Xiaoping optional equipment, valves wholesalers, should be re-selection of suitable safety valve; stem rust midline errors or spring, so that the valve can not be opened to the proper height, should Reassemble the stem or replace the spring; there are not enough cross-section of the exhaust pipe, valve brand, emissions should be taken to meet the safety area of ??the exhaust pipe. Power industry standard "Electricity Supervision Regulation for boiler and pressure vessel industry" (DL612-1996) 9.1.13 for instrument calibration valve clearly states: "purely mechanical spring safety valve can be used hydraulic device calibration adjustments, generally 75% ~ 80% of rated pressure. After the hydraulic valve device adjusted, the lowest since at least safety valve seat from the base value of the actual review. "safety valve is widely used in various sectors of the national economy, as the Boiler and Pressure Vessel safety accessories and piping, valves, according to the national "Pressure Vessel Safety Technology Supervision" requirement, "safety valve should check at least once a year in general." However, the current petrochemical and chemical companies means continuously run for more than a year, even two or three years to achieve parity once a year is difficult; some equipment belonging to the continuous operation, stainless steel valves, no maintenance period; in addition, is safety valve on the faulty operation of the device without stopping the machine disassembly and replacement is also difficult to achieve. To this end, we developed a safety valve fast switching device that can achieve non-stop fast valve replacement purposes. Valve | Everbright valve | high temperature and pressure Valve Co., Ltd. by Shandong Everbright valve. Shandong Everbright Valve Co., Ltd. (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!