VALVE AND VALVE DIAPHRAGM Russian patent published in 2016 - IPC F16K41/12 

FIELD: machine building.

SUBSTANCE: group of inventions relates to valve and to valve diaphragm. Valve comprises body with first port and second port. Gate can move along axis and be provided into locking position, in which it is tightly coupled with valve seat. Valve includes diaphragm, impermeable for fluid medium. Diaphragm is equipped with central hole, through which containing gate shutter unit is provided. Diaphragm has clamped section provided in clamping clearance, arranged inclined relative to axis and fixed with provision of tight joint with one side on gate assembly, and on opposite side is on fixing unit, corresponding to valve body. Diaphragm has first section located on its outer edge, and second section adjoining first section from radially inner edge. At that, first section is fixed at tight fit in fixing unit. Direction of second section is set by fixing unit. First and second sections are arranged at angle to each other. Fixing assembly is made so, that first and second sections are spatially coordinated with fixing unit. Invention also relates to diaphragm for such valve.

EFFECT: group of inventions is aimed at improvement of diaphragm fixation in clamping gap, higher stability during storage and sealing efficiency.

18 cl, 6 dwg