ADJUSTING TWO-DISK VALVE WITH AN UNLOADING ARRANGEMENT Russian patent published in 2006 - IPC F16K39/04 F16K25/00 F16K11/72 

FIELD: the adjusting two-disk valve with an unloading arrangement is designed for using in the adjusting pipeline armature.

SUBSTANCE: in the body of the valve there is an immobile saddle with the passing profiled peripheral windows and a central channel in it and a slide. The valve is additionally provided with an analogous immobile saddle and a slide. The latter are installed symmetrically to the first saddle and the slide relatively to the axle of the sockets. The slides are connected between themselves with possibility of their simultaneous turn and possibility of an axle travel relatively to each other by means of the rods. The latter pass through the central channels of the immobile saddles. The unloading chamber is located between the immobile saddles and is formed with the help of a cylinder and a piston. The latter are located on the ends of the rods. The unloading chamber is connected with the pressure cavity of the valve by means of a longitudinal channel. The latter is fulfilled in the rod of one of the slides. Between the cylinder and the piston there is an element for preliminary compression of the slides to the saddles.

EFFECT: increases carrying capacity of the valve.

1 cl, 3 dwg