FIELD: testing equipment, tests of stop valves for leak-proofness. SUBSTANCE: process testing stop valves having retractable spindle of working tool includes sealing of end faces of tested stop valves, filling of their spaces with liquid and formation of pressure in them. Pressure in liquid is created by way of entry of retracted spindle into space of tested stop valve. EFFECT: simplified process, reduced labor input. 1 cl, 2 dwg
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|
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