What is the normal pre-set point for negative pressure of pressure/vacuum-breaking valves?

09 Feb '20, 22:56

Feb. 9, 2020, 10:56 p.m.
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Answer:

The vacuum pre-set point 0.5 psi (0.034 bar).

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11 Feb '20, 17:54

Feb. 11, 2020, 5:54 p.m.
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