| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a nozzle for treating a pipe inside surface to remove scale stuck on the inside surface of various pipes and tubes. <P>SOLUTION: The nozzle for jetting base material for the treatment of the pipe inside surface is provided with a hollow cylindrical body, a screw part formed in the rear end of the hollow cylindrical body and screwed with a fitting of a hose side for forcibly feeding the jetting base material, a conical reduced member toward the rear end in the center of the hollow cylindrical body, flow passages which are uniformly formed toward the front end of the hollow cylindrical body respectively with an equal interval on the bottom of the conical reduced member to be led from the axial center side of the hollow cylindrical body toward the peripheral side and each of which is twisted right or left to the axial line direction of the hollow cylindrical body in the front and the rear end. <P>COPYRIGHT: (C)2003,JPO</p> |
