| 摘要 |
The invention is to provide a coupling structure of corrosion resistance for nonferrous metal piping.The coupling structure comprises: iron socket members(10, 10a), for a two piece iron socket, each being in the shape of a divided half piece of the socket and having a first groove and a second groove at each end part of the socket; a separator dually layered of a synthetic resin layer and a nonferrous metal layer to fit in the first groove(11) and having a lengthwise groove on the inner face; a cylindrical packing(3) having a sealing ring(3a) at each end for fitting in the second groove(12) and arranged to cover the inner surface of the socket members(10, 10a); and nonferrous metal pipes(1, 1a) each having at the end a stopper ring(20 or lugs(2a) round the periphery to fit in the first groove(11), to be assembled into an integral assembly in the manner that the ends of the nonferrous metal pipes(1, 1a) are fitted in the respective sealing rings(3a) for the stopper ring(2) or lugs(2a) to be fitted in the groove of the nonferrous metal layer of the separator to be covered with both the socket members and tightened with bolts nuts for finishing. |
