Rubber Gasket
The absence of sunlight end oxygen, presence of moisture/water, relatively lower and uniform surrounding temperature in buries conditions help in preservation of rubber gaskets/ Thus this type of joint is expected to lose for more than 100 years.
Good quality Synthetic rubber gaskets made either of SBR (Styrene Butadiene Rubber) or EPDM (Ethylene Propylene Dimethyl Monomer) conforming to IS:5382 are used with Ductile Iron push-on joint pipes.
Gasket should be stored in a cool & dry place. Direct exposure to sunlight should be avoided
It is advised that the users should obtain gaskets through Electro steel only.
Jointing Tips
The sockets face uphill while pipelines is laid on a slope
The direction of flow nothing to do with direction of the socket
Never use petroleum-based lubricant during jointing. It damages the gasket. Liquid soap solution or organic grease many be used.
All Fittings should be suitably anchored against displacement as recommended in the laying specification
Spigots should be inserted into the socket up to the white insertion mark to ensure proper jointing.
The joint deflection should not be more than the recommended deflection
