Stop valves Backbone Modular design for recessed installation, high pressure and temperature

摘要

1. The main shut-off valve for the integrated modular assembly, high pressure and temperature comprising a housing having connecting flanges, with a central vertically disposed cylindrical bore and coaxially arranged therein two successively openable spring-loaded locking bodies being coaxial with the housing fixed guide cylinder for the first - main closure member disposed to be axially movable relative to the guide cylinder and interacting with a seat, second - auxiliary valve plug is configured with the reduced geometric parameters relative to the first locking body and free from play is docked with the rod actuator, the guide cylinder of the second closure member disposed coaxially guiding cylinder main closure member, characterized in that the connecting flanges of the isolation valve with mounting holes and end caps sealing elements are integrally formed in a single piece with the housing and the flange connectors are located on the surface of n rohodyaschey through the centers of the entrance apertures and, accordingly, the output of the working environment, with a central vertically disposed bore casing formed multi with the formation at the site middle stage of the main seat and two annular cylindrical grooves forming the interaction with the main shut-off valve closed annular input cavity and output working body, and the area at stage - hollow cylindrical guide bore forming in cooperation with the main body of the locking ring rout