Direct-flow cylindrical valve

Claim 1

A direct-flow cylindrical valve comprising, in combination: a pack assembled of serially arranged elements, the latter each including ring-Shaped members: a seat having end faces and cylindrical surfaces, and at least one flexible plate, said seats and said plates adjoining each other, so that said plates are clamped along one of their circular edges; said seats having passages for inlet of a working medium, said passages being in the form of radial inlet slots disposed along at least one of said end faces of the seats and open at the sides of one of said cylindrical surfaces, so that the medium washes the surfaces of said plates along the entire lengths of said inlet slots, wherein said elements further include rings adjoining said plates at the sides opposite to those which adjoin said seats and having chamfered surfaces on the sides of said plates, to provide for their bending in the open valve, and wherein said seats further include radial outlet slots for the medium, open at the sides of said cylindrical surfaces opposite to those facing openings of said inlet slots, said outlet slots being arranged between said inlet slots on the sides where said plates adjoin said seats, so that in the open valve there is formed a zigzag slot allowing the medium to flow from said inlet slots to said outlet slots.