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How do we calculate?
In ASME B31.3 the hydrostatic test is 1.5 × design pressure and the pneumatic test 1.1 × design pressure. In EN 13480 the hydrostatic test is at least 1.43 × allowable pressure. In EN 12845 sprinkler systems are tested for 2 hours at 1.5 × maximum operating pressure (min. 15 bar). Flanges are compared with 1.5 × PN.
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