VALVE (OPTIONS) Russian patent published in 2017 - IPC F16K25/02 

FIELD: machine engineering.

SUBSTANCE: valve comprises a housing with an inlet, outlet pipes and saddle, a valve with seal, with a holder, fixed with a pin, with an inside groove. In the gate along the inside groove and the outer surface, grooves and holes are made; in a holder on the outer surface of the grooves and ribs on the inner surface, grooves and openings are made, and on the holder, an outer shell is installed with a gap with a flexible tendril and visor with a cylindrical surface contacting with a minimum clearance with the outer surface of the body seat, while in the internal shutter groove, a filter element is installed, and the shutter openings and holders are communicated with the gap cavity between the holder and the outer shell. A valve option is also provided.

EFFECT: reduction of the seal shutter and the body seat clogging with foreign particles being in the component during valve opening and closing.

2 cl, 4 dwg