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Rubber Expansion Joints / Compensators

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Rubber Expansion Joint/compensators have a special advantage in interrupting or muffling noise transmission in pipe line at pumps or machine in addition to their function as elastic pipe connections. They compensate for movements in pipe line, at pumps, Engines, Turbines, Machines, Equipment and Tanks and can be used to compensate for mounting inaccuracy as extension pieces on fittings or as sealing elements where pipe systems pass through walls. These are available in various different designs, with shape, fabric structures and rubber quality matched to the specific application.


Made of natural / synthetic rubber like EPDM, Chloroprene, NBR, Butyl and Chlorobutyl on a strong carcass made of synthetic/cotton fabric with reinforcement of steel wire, steel ring etc. The durability of the various rubber grades depends on the type of medium being handled, its concentration, temperature, external environment, flow velocity, period of exposure and a number of other factors.


Construction is of high strength fabric and elastomer reinforced with metal rings or wire. The flanges are integral with the body of the joint and drilled to conform to the bolt holes of the companion metal flanges of the pipe lines. This type of rubber faced flange is of sufficient thickness to form a tight seal against the metal flanges without the use of gaskets. Alternate design with floating solid steel flanges is also available.

Rubber bellows / compensators are also designed and manufactured with plain ends to be held in place by clamps thus eliminating the need for flanges. Filled in arch types can also be supplied with a soft rubber arch filler to provide a smooth interior, reduce turbulence and prevent the collection of solid material that may settle from the solution being conveyed and remain in the archway.


Size from 25mm NB up to 2500 mm NB. Rectangular sizes are also available.


26 inches Hg of vacuum up to 40 Kg /cm2g.


Maximum working temperature varies as per the different grades of rubber used.

Application: Structure Pipe,Gas Pipe,Hydraulic Pipe,Chemical Fertilizer Pipe,Pneumatic Connections


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