FIELD: geological prospecting, gas and oil production. SUBSTANCE: invention deals with hydraulic testing of oil and gas production equipment. Bed to pressure test oil and gas production equipment comprises high-pressure pumping unit, line feeding working fluid, system controlling and adjusting pressure of fed working fluid. Unit of mechanized sealing of joint between pressure and fitting flanges includes adapter coil with blind flange at the bottom and coupling flange on top. System of separate feed of working fluid ensures adjustment of pressure when fluid is supplied into space of tested equipment and into unit of mechanized sealing of joint. EFFECT: increased reliability and quality of hydraulic tests, widened range of test pressures. 2 dwg
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