Questions regarding valve pressure testing
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A batch of valves has arrived on site, including gate valves, globe valves, ball valves, etc. According to standard 50182, valves with an upper sealing surface are required to undergo a test of that upper sealing surface. Which valves are necessary to have this upper sealing surface test performed? Thank you. Which standard should be used?
In the petrochemical industry, clauses 5.3.3 and 5.3.4 of SH 3518-2013 provide relevant regulations