Abstract: A coupling assembly for sealing an interface between a pipe and a sump wall, the assembly comprising; a sleeve (21) configured to be inserted in an aperture in a sump wall (20) and having a bore suitable for receiving a collar (22), the sleeve (21) having in diametrical cross section along its inner surface one or more circumferentially arranged, longitudinally extending undulations (21a); a collar (22) configured to be received between the sleeve (21) and the pipe P, being fusible to the pipe P and having a stepped internal diameter (22a) for receiving a swaging bung (23), a swaging bung (23) configured to be received in the stepped portion (22a) of the internal diameter of the collar (22) and configured to receive a pipe P; at least one washer (24a, 24b) having a diameter sized to fit the outside diameter of the sleeve (21); and a quantity of matting (25) comprising a material which is leak tight bondable to the material of the sump wall (20).

Abstract: A pipe coupling device (2) for joining the ends of two pipes is disclosed. The pipe coupling device (2) includes a sleeve (4) configured to receive an end of a pipe and having an annular first abutment surface (6); a compression member (12) having an annular second abutment surface (10); a sealing and gripping assembly (8) for sealing against and gripping the pipe; and threaded fasteners for drawing the compression member (12) and the sleeve (4) axially together so as to compress the sealing and gripping assembly (8) against the pipe. The sealing and gripping assembly (8) includes a sealing member (14) and a gripping device. The gripping device may include an annular carrier (16) having an annular recess for retaining a gripping member (18). The gripping surface of the gripping member (18) and the annular carrier (16) are adapted for relative axial movement wherein the gripping member (18) may be moved into tighter contact with the pipe.

Abstract: Apparatus for blocking the bore of a pipe (1) comprises a plurality of elongate shutter member (15-17) pivotably mounted to an elongate support member (3/3a) for insertion through a pre-drilled aperture (8) in the pipe wall. Actuating means (14) are provided for pivoting the shutter members (15-17) from an insertion configuration in which they substantially aligned with said support member (3a) and deployed configuration in which they are fanned out across the bore of the pipe (1). Each shutter member (15-17) is pivoted about a point (9) located towards one end thereof and towards the insertion end of the support member (3a) so as in use to lie between the axis of the bore of the pipe and the wall of the pipe (1) opposite the location of said aperture.

Abstract: A pipe coupling device (2) is disclosed. The pipe coupling device (2) includes a sleeve (4) configured to receive an end of a pipe and having an annular first abutment surface (6); a compression member (12) having an annular second abutment surface (10); a sealing and gripping assembly (8) for sealing against and gripping the pipe; and means for drawing the compression member (12) and the sleeve (4) axially together so as to compress the sealing and gripping assembly (8) against the pipe. The sealing and gripping assembly (8) includes a sealing member (14) and a gripping means. The gripping means may include an annular carrier (16) having an annular recess for retaining a gripping member (18). The gripping surface of the gripping member (18) and the annular carrier (16) are adapted for relative axial movement wherein the gripping member (18) may be moved into tighter contact with the pipe.