Riken compression couplings consist of the body, rubber packings, washers and nuts. In this type of coupling, the sealing effect on the fluid can be obtained by tightening the nut as this causes the highely elastic rubber packing to be pressed tightly against the surface of the pipe. Since the rubber packing exerts a large reaction force and frictional force on the internal face of the nut, the nut is held fast so that it will not loosen. Pipes should be fixed.

APPLICATIONS. For general use, water supply, gas supply and hot water piping as well as other piping which requires some expansion and contraction.Size range – 15NB to 50NB in Short Sockets, Long Sockets and Male Adaptors

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