Socket or sleeve pipe coupling - has outer clamp ring with internal cones to successively deform outer coupling member

摘要

The pipe coupling is affected by clamp rings (12) with conical inner surface being secured over the socket end or the outer sleeve (3). This produces a sealed joint between the pipe and sleeve (1, 3) by inward deformation. Each lamp ring (12) has a first conical inner portion (14) followed by a cylindrical portion (15) and a second conical portion (16). The diameter of the cylindrical portion (15) is equals to the small diameter of the first and the large diameter of the second conical portion. The outer diameter of the sleeve (3) before fixing the ring (12) approximately equals the large diameter of the first portion.