inversion pipe relining plumbers sydney

Inversion Pipe Relining

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continuous drain rehabilitation 

Inversion Pipe Relining Sydney

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Serving the community since 1955

CIPP - Cured In Place Pipe

Inversion Pipe Relining, commonly referred to as CIPP (Cured In Place Pipe), is one of many types of trenchless (No-Dig) restoration processes used for rehabilitating damaged pipelines. It involves the use of a textile liner tube and liquid pipe relining resin. Once installed in place, the combination of materials cure, providing a tight fitting structural liner against the inside of the existing host pipe.

 

This method of pipe restoration has been used for rehabilitating failing, damaged, cracked and tree root infested wastewater pipes such as sewer lines and stormwater drains since 1971. Now it is used worldwide, providing a cost effective alternative to destructive excavation and trenching techniques traditionally used for sewer or stormwater pipe replacement. 

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Inversion Pipe Relining
 
 

A Non-Destructive Technology

Considered non-destructive and non-disruptive, this type of trenchless pipe relining technology involves the inversion of a felt tube through the inside of the existing host pipe, saturated with a catalyst and thermosetting resin. The liner tube is then installed into the damaged pipe with water or air pressure. After the liner tube has made it through the sewer or stormwater line, it is then cured with ambient air or heated using steam or water to create a tight fit against the inside of the host pipe and essentially creates a “pipe within a pipe". Pipes with diameters between 50mm and 225mm can be rehabilitated in as little as a single day in many cases.

CCTV camera survey of a relined pipe

Choosing The Right Liner Size

It’s important that all CIPP liners be created to work with the existing pipe dimensions.

This determines the thickness of the liner and also determines how long it will last.

The parameters we use to determine CIPP liner size include:

  • The diameter of the pipe

  • The length of the pipe

  • Ovality of the existing pipe

  • The depth of the pipe to be lined

  • The shape of the pipe

  • The current condition of the pipe

  • The amount of ground water table over the pipe

  • Density and modulus of surrounding soil

  • Live load conditions

One of the most appealing factors about the inversion pipe relining process is the fact that it can be used for pipes in any configuration, which includes multiple transitions and bends. Additionally, it’s usable in virtually any type of existing piping such as earthenware, PVC, cast iron and concrete. The CIPP process is also a cost-effective solution when compared to traditional excavation and trenching methods for repairing and restoring damaged or deteriorating pipes. 

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No Dig Trenchless Pipe Relining Sydney

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