BED FOR HYDRAULIC TEST OF FLANGED VALVES Russian patent published in 2003 - IPC

FIELD: technological equipment producing industrial stop valves, processes of their repair and preparation for hydraulic test for strength, leaks and tightness. SUBSTANCE: invention is aimed at possibility of test of flanged valves of wider range of type sizes by valve diameter and pressure. Bed has frame, blank plugs with sealing members, cross-pieces put with holes on rods, hydraulic cylinder whose rod is linked to cross-piece nearest to it. Bearing strut is made fast to frame, rods are arranged horizontally along frame and in parallel one another and are made fast with one end to bearing strut. Cross-pieces are put vertically relative to frame and are linked to rods for translation with reference to them. Cross-piece most distant from hydraulic cylinder coupled to it with the help of threaded nut is kinematically coupled to translation drive of this cross-piece, another cross-piece joined to rod of hydraulic cylinder is put freely on to thread-free section of rod for translation with reference to them under action of hydraulic cylinder. Each cross-piece is equipped with lever and support on its end, supports are meant for installation of tested flanged valves. Levers are anchored in lower part of cross-pieces and are kinematically connected to screws through proper links and nuts. Each end of screw to which levers are coupled kinematically has square section for interaction with separable arm. EFFECT: raised functional reliability and efficiency of bed. 1 cl, 5 dwg