What is the relationship between the set pressure of safety valve and other pressures?

Time：2021/9/24 22:33:36 Category：TECHNICAL ARTICLE Source： Click：

What is the relationship between the set pressure of the safety valve and other pressures?

Under normal circumstances, according to the working pressure of the vessel, determine the set pressure of the safety valve (ie the take-off pressure). Generally, the set pressure is equal to (1.05~1.1) the working pressure, and then the design pressure of the vessel is equal to or slightly greater than the set pressure. . In addition, it should be noted that the sealing pressure of the safety valve is equal to 90% of the set pressure, which is greater than the working pressure. The deviation of the safety valve setting pressure should not exceed plus or minus 3% or plus or minus 0.015MPa, whichever is greater. In short, it is necessary to consider comprehensively to coordinate the relationship between design pressure, working pressure, and setting pressure.

Knowledge contributor: Shanghai Wuyue Safety Valve