FLOW PRESSURE SHUT-OFF DEVICE Russian patent published in 1998 - IPC

FIELD: pipe line fittings; automatic filling of reservoirs with water. SUBSTANCE: device has insert in its body made in form of bush 4. Shut-off member 7 is made in form of sleeve with circular cylindrical projection 11 on outer surface. Projection 11 is engageable with face of bush 4. Made under projection are holes 15 evenly distributed over circumference; passage area of these holes is no less than passage area of cavity of sleeve. Lower end of sleeve 7 received by hole of bush 4 is below the face of bush. Wall of sleeve has hole 18 where end of lever 19 is located at spaced relation. Axle 21 of lever is secured in support provided with ring 24 located on lower end of bush 4 and locked with locking screw 25. EFFECT: enhanced reliability. 2 cl, 5 dwg