Abstract: A pipe connection comprises a connecting piece, a pipe and a clamping ring. The pipe and the clamping ring are made of a material having memory properties. An end of the pipe and the clamping ring have been reversibly expanded co-jointly and firmly and sealingly shrunk to the connecting piece by back shrinkage. Preferably the clamping ring is made from a cross-linked polyolefin by injection molding.

Abstract: A swivel joint includes a pipe part and a swivel nut. The pipe part has a first end and a second end and the swivel nut has a first end and a second end. The swivel nut is positioned on the pipe part such that the first end of the swivel nut forms a swivel connection with the first end of the pipe part. The swivel nut and the pipe part include shoulders against each other for preventing separation of the swivel nut from the pipe part. The swivel nut is made such that the swivel nut and the pipe part are connected together by pushing the first end of the swivel nut towards the first end of the pipe part whereby the swivel nut and the pipe part are connected by a snap joint.

Abstract: A swivel joint comprises a pipe part and a swivel nut (2). The pipe part has a first end (4a) and a second end (4b) and the swivel nut (2) has a first end (11a) and a second end (11b). The swivel nut (2) is positioned on the pipe part such that the first end (11a) of the swivel nut (2) forms a swivel connection with the first end (4a) of the pipe part. The swivel nut (2) and the pipe part comprise shoulders (10, 17) against each other for preventing separation of the swivel nut (2) from the pipe part. The swivel nut (2) is made such that the swivel nut (2) and the pipe part are connected together by pushing the first end (11a) of the swivel nut (2) towards the first end (4a) of the pipe part whereby the swivel nut (2) and the pipe part are connected by a snap joint.

Abstract: A pipe connection comprises a connecting piece, a pipe and a clamping ring. The pipe and the clamping ring are made of a material having memory properties. An end of the pipe and the clamping ring have been reversibly expanded co-jointly and firmly and sealingly shrunk to the connecting piece by back shrinkage. Preferably the clamping ring is made from a cross-linked polyolefin by injection molding.

Abstract: A manifold (1) comprises a body (2) with a plurality of branch fittings (3) diverging therefrom. The inner surface of the body (2) is conical such that the inner cross-sectional area of the body (2) decreases in the direction of flow. The manifold (1) is particularly well suited for use in tap water systems. The manifold (1) can be manufactured e.g. from polyphenyl sulfone PPSU, polysulphone PSU, polyvinylidene fluoride PVDF, glass fibre reinforced polyamide PA, or cross-linked polyolefin plastic.

Abstract: The present invention relates to a pipe coupling for connection to a pipe end of a pipe made of polymer material and intended preferably for tap water or heating installations. The pipe coupling includes an inner sleeve intended for insertion into the pipe end and for abutment with the inner surface of said pipe end. The coupling further includes an outer sleeve intended for abutment with the outer surface of said pipe end. The outer sleeve is provided with a slot-like opening and means for adjusting the width of said opening. When the outer sleeve is in a tightened, adjusted state, the sleeve will be internally and externally cylindrical. A center axis through the outer cylindrical surface of the outer sleeve is spaced at a distance from a center axis through the inner cylindrical surface of the outer sleeve. In the tightened, adjusted state of the outer sleeve, the internal radius of said sleeve is smaller than the external radius of said pipe end.