END VALVE Russian patent published in 2008 - IPC F16L13/16 

FIELD: valving systems.

SUBSTANCE: end valve comprises rotatable member made of inner space of the valve housing and pivoting connection provided with a rocker whose long arm is connected with the housing of the valve by means of the axle secured to the ribs-plates that are rigidly connected with the outer wall of the valve housing. The short arm of the rocker is pivotally connected with the lid of the valve via hub mounted at the center of the outer side of the valve lid. The central part of the rocker of the rotatable device is arc-shaped and is concentric to the inner circumference of the inlet opening in the housing of the valve. When the valve is open, the arc-shaped surface overlaps the area of the sealing surface.

EFFECT: expanded functional capabilities.

2 cl, 5 dwg