AUTOMATIC AIR VALVE Russian patent published in 2004 - IPC

FIELD: automatic adjusting equipment. SUBSTANCE: device has body with entrance hollow in lower part, float, forming by its outer surface and inner body surface a ring-shaped passage, and a working body in upper part. Working body has controlling body connected to float, valve and valve saddle. Valve saddle aperture is connected to the atmosphere. Controlling valve saddle is made in the valve. The valve is glass-shaped. Valve saddle is made in composite body portion with perforated wall in adjacent half. In other half an aperture surface and adjacent valve surface are conjugated by diameter, which is larger than diameter of valve saddle aperture. EFFECT: increased application range of automatic air valve, guaranteed stable operation, increased durability. 1 dwg