The New Annular Sealant For Gas Services

February 12, 2008

A natural product, FULLSEAL™ contains no harmful chemicals and requires neither mixing nor other preparation before use, making it safe and extremely easy to use. Over one hundred field trials were carried out on the product by National Grid Gas with the result that FULLSEAL™ is now being routinely used by NG’s direct labour teams and has been adopted in all four...
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Drainblock Bag™ – For Remotely Sealing Off Sidused Drains Or Sewers

January 10, 2008

The system uses a twin fabric bag containing an expanding polyurethane resin foam, and is based on a technique which the company initially developed some 25 years ago for use in the gas distribution industry. The major advantage of the DRAINBLOCK BAG™ is that it is positioned from an access point up to 15 metres away from the joint with the main. This avoids the need to excavate in the...
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More Of A Push

December 6, 2005

The 125Plus was used recently by Balfour Beatty Utilities (BBUL) in Darlington to push 332 metres of 75mm diameter PE into a 4” cast iron main during a Live Gas Mains Insertion project. By turning the machine around after the first push, BBUL was able to insert the PE in two directions from one excavation; the first push was 182m in length and took 25 minutes and the second 150m. This was...
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Stoke-on-trent Flow Stopping Overhead Gas Main

July 15, 2005

  These overhead mains, situated close to a gas holder in Stoke-on-Trent, were being dismantled prior to the site being developed for housing. The pressure was reduced from 2 bar to 50mbar, allowing a Steve Vick International Special Contract Service team to install two FOAMBAGS™ in the 20” and 24” diameter pipes. The pipes could then be cut out and dismantled.  
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New 630 Pipe Pushing Machine

September 19, 2004

The new machine is supplied with a hydraulic power unit delivering 100 Bar at 80 litres per minute or 200 Bar at 50 litres per minute resulting in a maximum pushing force of 11 tonnes. With an insertion speed of up to 4 metres per minute, the machine will typically install 300 to 400 metres in one operation. By fitting insert shells, it will accommodate pipe down to 350mm diameter. The...
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