WECO Seals - Cooling Water Line Repairs

During a power station outage the decision was made to take up repairs on their Cooling Water outlet lines. These lines take the Cooling Water from the power station back into the sea.

JM CONTRACTING LTD was elected to undertake works to repair the leakages on these lines, the leakages from line to line meant that if one of the lines required shutting down, the whole power station had to be closed. There were 4 lines in total, each requiring over 100 seals. The seal system that we used is known as WECO seal, this is a specialist discipline undertaken by JM CONTRACTING LTD. All work done by JM CONTRACTING LTD was done during a night shift, to enable on-going construction work to carry on during daytime periods.

Seals are available for any pipe size 600mm – 1500mm and larger, any material and any shape. They are installed internally by JM CONTRACTING LTD installers (all installers are confined space trained and hold current water hygiene cards) and require up to 1000m between access points. The seals are flexible rubber leak clamps that ensure a non-corrodible, bottle tight seal around the full internal pipe circumference of the pipe joint area. WECO seal provides a positive, flexible seal, while saving up to 60% cost compared to conventional excavation methods.

WECO seals can be used on practically any material of pipe, concrete, reinforced concrete, cast iron, ductile iron, steel, PE, PVC and more. Seals are serviceable in portable water distribution lines, sanitary sewer lines, storm sewers, natural gas piping, and industrial piping. Also power station cooling water lines, circulation water lines, service water, fresh water and sea water lines.

Seals can be designed for, and installed in standard round pipes, as well as pipes that may be unusual shapes, such as oval, square or those containing compound angles. JM CONTRACTING LTD has over 25 years’ experience in this field, throughout the UK, Ireland and Middle East and would be happy to provide a service consulting and executing the above discipline.