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socket spigot pipe
Socket and Spigot Flexible Joints are assembled with synthetic (Ethylene Propylene Diene Monomer Styrene-Butadiene-Rubber) rubber gaskets of special shape. The gasket has a hard ‘Heel’ and a soft ‘Bulb’. In Push-on joint the soft bulb of the rubber gasket is compressed when the spigot is inserted into the socket. The ‘Heel’ locks the position of the gasket and does not allow the gasket to get displaced when the spigot is pushed in. The joint becomes tighter with the increase in internal pressure of water. The rubber is confined in a place and cannot blow out.
