COUPLING FOR CONNECTING BRANCH PIPES, CAPABLE OF SEALING EFFECTIVELY BETWEEN A MAIN PIPE AND A BRANCH PIPE WITH A SEALING BY ENLARGING A CONTACT SURFACE BETWEEN A SEALING AND BOTH SIDES PARTS TO THE UTMOST

摘要

PURPOSE: A coupling for connecting branch pipes is provided to keep firm sealing even under high temperature by making a packing part with heat resistance silicon.;CONSTITUTION: A coupling for connecting branch pipes comprises a lower part and upper couplings(3,4), an elastic pad(5), a coupling sealing(6), a circular hole joint(7), a branch pipe joint(8), and a branch pipe sealing(9). The branch pipe coupling is strongly tightened with the elastic pad having elastic force shrunk under pressure, and exercises repulsive force pushing a branch pipe(1) continuously in order to improve air-tightness after fastening. The threads of the branch pipe sealing to mate with the threads of the branch pipe are pushed to one side to reduce leakage through a gap between the threads.;COPYRIGHT KIPO 2010