Abstract: A fitting for providing a substantially fluid-tight seal between an opening in a chamber wall and a pipe passing through the opening, the fitting including a tubular sleeve adapted to allow the pipe to pass through the sleeve, a flange extending radially outwardly from the sleeve, the fitting incorporating an energy transfer device enabling heating to cause the fitting and the wall to fuse or bond together in order to form a substantially fluid-tight seal.

Abstract: A fitting for providing a substantially fluid-tight seal between an opening in a chamber wall (10) and a pipe (4) passing through said opening, said fitting comprising: (ii) a tabular sleeve (22) adapted to pass through the opening in the chamber wall (10) and further adapted to allow the pipe (4) to pass through the sleeve (22); (ii) a flange (24), extending radially outwardly from the sleeve (22), a first surface (26) of the flange (24) being configured to contact the chamber wall (10) around substantially the whole circumference of the opening; characterised in that the flange (24) incorporates an energy transfer means at or near the first surface (26), said energy transfer means enabling the first surface (26) and/or the wall of chamber (6) in the vicinity of the flange (24) to be heated to cause the flange (24) and the wall (10) to fuse or bond together in order to form a substantially fluid tight seal.

Abstract: A fitting for providing a substantially fluid-tight seal between an opening in a chamber wall and a pipe passing through the opening, the fitting including a tubular sleeve adapted to pass through the opening in the chamber wall and further adapted to allow the pipe to pass through the sleeve, a flange extending radially outwardly from the sleeve, a first surface of the flange being configured to contact the chamber wall around substantially the whole circumference of the opening wherein the flange incorporates an energy transfer device enabling the first surface and/or wall of chamber in the vicinity of the flange to be heated to cause the flange and the wall to fuse or bond together in order to form a substantially fluid tight seal.

Abstract: A pipework containment system comprising: (i) an outer containment pipe extending between a chamber and a sump; (ii) a fluid-tight seal between the outer containment pipe and the chamber; (iii) a fluid-tight seal between the outer containment pipe and the sump; (iv) a plurality of flexible supply pipes extending between said chamber and said sump; characterized in that the plurality of supply pipes are contained within one and the same outer containment pipe, the arrangement of supply pipes within the outer pipe and the flexibility of the supply pipes being such that each individual supply pipe may be withdrawn from the system and/or replaced after construction of the pipework containment system is complete.

Abstract: A fitting for providing a substantially fluid-tight seal between an opening in a chamber wall and a pipe passing through the opening, the fitting including a tubular sleeve adapted to pass through the opening in the chamber wall and further adapted to allow the pipe to pass through the sleeve, a flange extending radially outwardly from the sleeve, a first surface of the flange being configured to contact the chamber wall around substantially the whole circumference of the opening wherein the flange incorporates an energy transfer device enabling the first surface and/or wall of chamber in the vicinity of the flange to be heated to cause the flange and the wall to fuse or bond together in order to form a substantially fluid tight seal.

Abstract: A pipework containment system comprising: (i) an outer containment pipe (14) extending between a chamber and a sump; (ii) a fluid-tight seal between the outer containment pipe and the chamber; (iii) a fluid-tight seal between the outer containment pipe and the sump; (iv) a plurality of flexible supply pipes extending between said chamber and said sump; characterised in that the plurality of supply (12A-12D) pipes are contained within one and the same outer containment pipe, the arrangement of supply pipes within the outer pipe and the flexibility of the supply pipes being such that each individual supply pipe may be withdrawn from the system and/or replaced after construction of the pipework containment system is complete.

Abstract: A flexible secondarily-contained pipe of unitary or one-piece construction characterized in that it comprises the following combination of features: an inner supply pipe (1); an inner barrier layer (6) which forms an internal surface of the supply pipe (1) and which is formed from a first polymeric plastics material, an outer containment pipe (2); a plurality of passages associated with the secondary containment pipe, said passages being adapted to receive any fluid which has leaked from the inner supply pipe and to convey said fluid to a remote leak detector.