DEVICE FOR CONNECTING A VALVE HOUSING TO AN ACTUATOR IN A PROCESS VALVE ACTING AS A LIFT VALVE

摘要

Lift valve (1; 1.1; 1.2; 1.3), especially for process engineering, with a deválvula housing (2; 2.1; 2.2; 2.3) comprises at least one piece valve housing (2a), with at least a first and unasegunda connection piece (2b, 2c) which are connected to the piece valve housing (2a) and establecenuna union with the interior thereof, with a connection opening (2d) disposed within the housing valve (2; 2.1; 2.2; 2.3) between the connecting (2b, 2c), inside which or on which is made unasuperficie seat (2e), with a closure part (4; 4.1) unit translatable and sliding ARE ACTING together with the seating surface (2e) and which controls the connection opening (2d), with a single deaccionamiento bar (4a / 4b) attached to the closure piece (4; 4.1), that through a housing aperture (2h) of deválvula housing (2; 2.1; 2.2, 2.3) opposite the connection opening (2d), leaves the same It is connected sealingly CONUN driving piston (5; 5 *) of an actuator (3; 3 *), with a housing flashlight (3.1) connecting the deválvula housing (2; 2.1; 2.2; 2.3) with the actuator (3; 3 *), with the actuator (3 ; 3 *) to within an actuator housing (3a) has the actuating piston (5; 5 *) slidable against the force of a drive spring (7; 7.1; 7.2) by applying a pressure medium ( D), and the actuating rod (4a / 4b), which transversalestá widened section at least in the passageway with the valve housing (2; 2.1; 2.2; 2.3) so that there housed ina cavity (4c ) bowl-shaped part of the drive spring (7; 7.1, 7.2) located on the side of Lapieza closure, wherein the closure piece (4; 4.1) opens to the actuator (3; 3 *) and because the deaccionamiento spring (7; 7.1, 7.2) is supported respectively by its end, directly or indirectly, on the one hand in Labarra drive (4a / 4b) and, on the other hand, in a cover part (3b) that limits a housing ctuador (3a) Jan side driving piston (5; 5 *) opposite the closure piece (4; 4.1).