VALVE DEVICE Russian patent published in 2000 - IPC

FIELD: equipment for jet or spray type delivery of liquid. SUBSTANCE: valve device is designed for one-sign feeding of liquid under pressure 0.001-0.8MPa. Valve includes rigid detachable housing with mechanical fixation of lock joints. Housing has stepped central opening and cantilever type protrusions arranged one opposite to another for joining with pipelines. Lock membrane is placed between countersunk annular surfaces. Detachable members for engaging with pipelines have at outer side cone-cylindrical surfaces passing to opposite surfaces of less diameters. Lock membrane is arranged between contacting annular surfaces with possibility of basing its cylindrical tubular surface of elastic material upon closed cylindrical protrusion resting on ribs uniformly spaced along circle and partially engaging with said cylinder and with detachable body of union embracing said cylinder and rigidly joined with it. Union has on its stepped cylindrical surface protrusion 27 in the form of arrow indicating direction of flow of energy carrier. Detachable members have outer surfaces 30, 43 engaging with pipelines. Surfaces 30,43 pass to complex combined surfaces 31-40 provided with inner dead opening 9-13 for placing labyrinth annular sealing with outer surfaces 14-18. Said sealing is closed at outer side by means of stepped annular supporting opposite end of rigid housing with central opening and lock surfaces. EFFECT: automatically controlled directional single-side supply of energy carrier or other liquid flow, enlarged manufacturing possibilities of valve device. 6 dwg