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Pipe Preparation

Prior to the installation of a Premier-Pipe lining the pipeline is cleaned and inspected using a pan and tilt CCTV camera. This is to ensure the pipeline is free of silt, debris, tree roots or intrusions, which could adversely affect the lining installations. At this stage lateral connections are accurately plotted so that they can be reopened on completion of lining.

Lateral Connections

On completion of the installation of the new Premier-Pipe the lateral connections are reopened using a remote controlled cutter. After initially drilling a pilot hole in the lining the cutting head follows the shape of the incoming lateral. After all lateral connections are reopened a post lining survey using a pan and tilt CCTV camera is carried out.

Premier-Pipe for Small Diameter Pipelines

In order to minimise disruption further, small diameter linings are installed using a resin which cures at ambient temperatures, so that a mobile boiler is not required. In this case the Premier-Pipe is winched into the pipe through existing manholes and a removable inner hose is inverted through the lining using a small head of water. This head inflates the lining to fit tightly against the defective pipe until it cures within 2 – 4 hours. Once cured the inner hose is removed and the Premier-Pipe ends are trimmed.

Premier-Patch for Localised Repair

The Premier-Patch can be used when very short repairs are required along a pipeline. Patches are generally installed in 1 – 1.5m lengths as follows. Fibreglass mat is cut to suit the patch dimensions as required and impregnated with a silicate resin. The saturated mat is then firmly attached to a packer and winched into place within the sewer. After being accurately positioned over the damaged pipe the packer is inflated so the patch material is held tightly against the pipe wall until it cures. Once cured the packer is deflated and withdrawn, leaving the smooth, structural patch in place.

Lining Design

Premier-Pipe linings are designed in accordance with the procedures in the Sewerage Rehabilitation Manual issued by the Water Research Centre and are defined as a structural Type II Linings.

Quality

Premier-Pipe materials are manufactured under ISO 9002 conditions and linings are completed in OnSite’s factory, ensuring consistent high standards are maintained.

Training

OnSite personnel are trained to the highest recognised standards associated with working in confined spaces and the sewerage environment. As members of various safety organisations OnSite ensures ongoing Health & Safety courses for all employees.

For further information on this or any other service that we may be able to help you with, please contact:

OnSite - The Lining Division
Unit 14, W & G Estate, Faringdon Road, East Challow, Wantage, Oxon, OX12 9TF

Tel: 01235 772 882
Fax: 01235 770 782
E-mail: solutions@onsite.co.uk