ISOLATING VALVE AND METHOD TO MANUFACTURE VALVE BODY Russian patent published in 2011 - IPC F24F11/04 F24F13/08 F16K7/07 

FIELD: construction.

SUBSTANCE: isolating valve comprises a hollow body, the cavity of which is formed with pairwise joined external and internal grids. Each external grid is arranged as convex away from the longitudinal axis of the valve. Each internal grid and each external grid form a section with a cavity, where an elastic diaphragm is located in the form of, for instance, a plate, which is in the non-working neutral position in the middle between external and internal section grids. The body has multiple sections arranged along the generatrix circumference of the body. The valve body has a bottom joined to it and convex away from the body to form a cavity communicated with the body cavity. The body is connected to an embedded piece in the form of a pipe. The diaphragm, the external and internal grids have holes. Links are provided between the diaphragm holes. The links are arranged opposite to the section grid holes with the possibility of their coverage whenever the diaphragm bends towards the internal or external section grid. There is a method to manufacture the isolating valve body.

EFFECT: simplified design of the valve, higher universality and manufacturability of production.

5 cl, 8 dwg