BOOM-TYPE SPRINKLER UNIT Russian patent published in 2000 - IPC

FIELD: agriculture, in particular, sprinkler irrigation equipment. SUBSTANCE: sprinkler unit has tree-dimensional boom-type girder hitched to tractor and provided with sprinkler heads, pumping unit and suction line with float-type valve which has device for removal of sediments from valve walls. This device is in fluid communication via remote control mechanism with pumping unit pressure cavity and has flexible curved branch pipes arranged in pairs relative to float-type valve, in opposed relation one to the other. Curved branch pipes are fixed with their one ends to float unions. Floats are pivotally connected to valve side walls. Unions are in fluid communication via hoses one with the other through adapter T-pipes disposed in float cavities. Free ends of curved branch pipes are oriented toward float-type valve side walls. Remote control mechanism has stop valve whose body is in fluid communication with pumping unit pressure cavity. Stop valve stem is kinematically connected to control arm disposed in tractor cabin. EFFECT: enhanced reliability in operation by removal of sediments from float-type valve side walls. 4 cl, 4 dwg