Abstract: The present invention provides a line valve. The line valve of the present invention includes a connection pipe (100), which has at least two hose connectors (110) and (120), each of which has a flow passage (111), (121) therein. The line valve further includes a rotary valve (200), which is rotatably provided in the connection pipe, such that communication between the flow passages is selectively controlled depending on rotation of the rotary valve. The rotary valve (200) includes a cover plate (210), which is exposed outside the connection pipe, and a cylindrical rotating body (260), which is rotatably provided in the connection pipe. The cylindrical rotating body has a passage hole (270) therein. An O-ring (280) is provided on the outer surface of the cylindrical rotating body at a position perpendicular to the passage hole. The O-ring is fastened to the cylindrical rotating body by a fastening member (290).

Abstract: The object of this invention is to provide a hydraulic control valve for drip hoses, which controls a flow of water according to a water pressure, thus keeping a pressure of Water fed to a drip hose constant. The hydraulic control valve includes a hose connector (110) clamped at opposite ends thereof to a branch hose (H/S) and a drip hose (H/N), a water supply path having a larger-diameter path (120a) and a smaller-diameter path (120b), a U-shaped flexible cup (200), and a support ring (300). The Larger-diameter path includes a stepped seat (142) having projections (141) and depressions (142). The smaller-diameter path includes an inward projecting step (150). The cup is placed at an end thereof to be near to the inward projecting step, and includes a flange (210). The support ring (300) is fitted into the larger-diameter path to prevent a removal of the cup.