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TECHNICAL ARTICLE

the pressure level range of the safety valve defined

Time:2021/9/15 23:18:22 Category:TECHNICAL ARTICLE Source: Click:

How is the pressure level range of the safety valve defined?

Nuclear power safety valve

The pressure range of the safety valve refers to the applicable pressure range of the safety valve. Because the safety valve has both the maximum operating pressure limit (mainly considering safety factors) and the minimum pressure limit (mainly considering the use sensitivity). When selected After the safety valve model, it should be adjusted according to the working pressure of the place where it is used, so that the take-off pressure of the safety valve should comply with relevant regulations, such as boiler safety valve regulations: the set pressure of the safety valve with lower seating pressure should be the working pressure 1.12 times of the working pressure and should not be less than the working pressure plus 0.07MPa; the setting pressure of the safety valve with a higher seating pressure should be 1.14 times the working pressure and should not be less than the working pressure plus 0.1MPa. Regular calibration should be carried out according to the requirements of relevant regulations. Inspection. The adjusted safety valve should be "lead sealed".

Knowledge contributor: Shanghai Wuyue Safety Valve

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