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Introduction to DI Pipe Jointing Systems: Procedure

Rubber Gasket

The absence of sunlight and oxygen, presence of moisture/water, relatively lower and uniform surrounding temperature in buried conditions help in preservation of rubber gaskets. Thus this type of joint is expected to last for more than 100 years.

  – Good qualily Synthetic rubber gaskets made either of SBR (Styrene Butadyne Rubber) or EPDM (Ethylene Propylene Dimethyle Monomer) conforming to IS:5382 are used with Ductile Iron push-on ioint 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 Electrosteel only.

Jointing Tips

  – The sockets should face uphill while pipeline is laid on a slope.

The direction of flow has 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 may be used.

All Fittings should be suitably anchored against displacement as recommended in the laying specification.

Spigots should be inserted into the socket upto the white insertion mark to ensure proper jointing.

The joint deflection should not be more than the recommended deflection.


Post time: May-15-2024