COUPLING FOR RANGE OF PIPE DIAMETERS

摘要

A pipe coupling includes an annular clamp housing that has ends which are provided with two opposing clamp members. One or more tightening elements tighten the clamp members towards each other in a direction transverse to an axial length of the annular clamp housing so as to apply a radially-inward clamping force on a pipe being clamped in the annular clamp housing. An annular seal is mounted in a tightening chamber with borders defined by inner walls of the annular clamp housing and an inner abutment. The tightening chamber has a single annular opening that faces radially inwards. Upon sufficient tightening of the one or more tightening elements, the annular seal cannot expand against the borders of the tightening chamber and can only expand radially inwards through the single annular opening.

主权项

1. A pipe coupling comprising:
an annular clamp housing that has ends which are provided with two opposing clamp members and that comprises one or more tightening elements for tightening said clamp members towards each other in a direction transverse to an axial length of said annular clamp housing so as to apply a radially-inward clamping force on a pipe being clamped in said annular clamp housing; and an annular seal mounted in a tightening chamber with borders defined by inner walls of said annular clamp housing and an inner abutment, said tightening chamber having a single annular opening that faces radially inwards, wherein upon sufficient tightening of said one or more tightening elements, said annular seal cannot expand against the borders of said tightening chamber and can only expand radially inwards through the single annular opening.