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Details of double
chamber restrained joints

Doubler Chamber restrained pipes and fittings

Details of double chamber restrained joints

Double chamber restrained  pipes are designed in such a way that individual pipes are connected using the lock system to form one complete system without need of welding, screwing, testing, surface treatment or without having problem of loosening.  This type of Joint provides restraint against axial movement of pipe with the use of lock segments, which are restrained by the socket sloping face and weld bead. Locking segments are placed along the periphery of the pipe spigot and tightened by wrapping belt. 

Lock: Lock accessories are of Ductile Iron made with customized design and are supplied to suit the corresponding required PFA.

Wrapping Belt: For smaller diameters up to DN300 plastic ties are supplied for lock strapping after assembly.

Rubber Gasket: Elastomeric gasket materials are supplied in conformance to  ISO4633 / BSEN681-1 with type WA (Drinking Water) / WC (Sewage Water) and are hygienically approved (WRAS/ACS/Italy). The push-on joint gaskets supplied. The push-on joint gaskets supplied are of tyton or anchored profile as per JSAW socket design. The gasket material is EPDM or NBR as per application.

Rubber spacer (DN 1400 - DN1800): DCP locks from DN1400 to DN1800 are designed in such a way that, after the complete insertion and assembly of locks, lock insertion window needs to be cleared out. The space of last lock is to be filled by rubber spacer.