Broadly speaking, including the so-called safety valve relief valve, from a management point of view, rule, mounted directly on a steam boiler or pressure vessel, which is a necessary condition must be approved valve technology supervision department, called the safety valve on the narrow, Other commonly known as the bleed valve. Safety valves and relief valves in the valve structure and properties very similar to the price, both of which are more than open automatically discharge pressure inside the media, in order to ensure the safety of the production unit. Because of the similarity of this nature, the people in the use of the safety valve, often confuse the two. In addition, some production facilities in the rules which can be also provided. Therefore, the difference between the two is often overlooked. Selection principles of high pressure steam generation equipment bypass valve, generally used in a safe and controlled dual function of pilot safety valve if the requirements of the safety valve for regular open test should be used to enhance the wrench with a safety valve. When more than 75% of the medium pressure reaches the opening pressure, can be used to enhance the wrench to slightly lifted from the valve seat, in order to check the flexibility of the safety valve opens; if the medium temperature is higher, in order to reduce the temperature of the spring chamber, Generally when a closed valve using the temperature exceeds 300 ℃ and open safety valve when the temperature exceeds 350 ℃, should be used with a radiator valve; valve play a security role in the system. When the system pressure exceeds the predetermined value, the valve opens Shandong valve, the system is part of the gas into the atmosphere A38Y16C Double spring-loaded safety valve, the system pressure does not exceed the allowable value, in order to ensure the system is not due to excessive pressure and accidents . Also known as a safety valve relief. Valve is an automatic valve automatically open when the amount of fluid discharged rated medium overpressure, when the pressure is back to normal and automatically shut down to prevent the media flow. It is important to protect the equipment and process systems on the pressure vessel, and in the aerospace, petrochemical, energy, metallurgy and other industries have a wide range of devices and equipment used. Double spring-loaded safety valve, the valve Everbright (certified), the safety valve provided by Shandong China Everbright Limited valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) Shandong Weifang, ball leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Everbright valve leadership with the staff warmly welcome all inquiries negotiations to create a better future for China Everbright valve.