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Safety valve installation, use and maintenance

Electromagnetic stainless steel according to the safety valve disc opening height can be divided into micro-relief safety valve and full-open safety valve, micro-lift safety valve opening stroke height: ≤ 0.05d0 (minimum discharge throat diameter); full-open safety Valve opening height is ≤0.25d0 (minimum discharge throat diameter).
The safety valve is divided according to the structural form, which is divided into the vertical hammer type, the lever type, the spring type, and the pilot type. According to the structure of the valve body, it can be divided into two kinds: closed type and non-closed type. Closed-type safety valves, which exclude the leaked media, are discharged along the outlet to designated locations and are generally used in toxic and corrosive media. For air and steam safety valves, non-hermetic safety valves are often used. For the selection of safety valve products, it should be determined according to the actual sealing pressure. For spring-loaded safety valves, electromagnetic stainless steel is available in springs of several working pressure levels within a range of nominal pressures (PN). When ordering, the valve body should be noted except for the type, name, medium, and temperature of the safety valve. Sealing pressure, otherwise supply according to the maximum sealing pressure. The role of the safety valve and the use of safety valve installation and maintenance should pay attention to the following:
1, all kinds of safety valves should be installed vertically.
The
2. There should be no resistance at the outlet of the safety valve to avoid pressure.

3, safety valve should be specifically tested before installation, and check its official seal.

4, the safety valve in use should be checked regularly

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