Project Reports

A Special Contracts Team from Steve Vick International recently carried out a flow stopping project for Manx Gas on two 22” gas mains in Douglas, Isle of Man. Located on South Quay, close to a gas holder, the 200 metre sections of two-way fed main were being abandoned so that governors could be installed in order to connect into a medium pressure system. Two x two-way flow stop operations,...

Located in a busy area of Dudley, the gas mains that run under Shaw Road in the West Midlands town not only serve numerous homes and businesses but are also feeder mains for the local gas network.  West Midlands Gas Alliance, a partnership between National Grid and engineering contractor Morgan Sindall, embarked on a renewal programme of an 800m stretch of pipeline, running from the old gas...

Guernsey Gas has carried out the first live insertion of a gas main on the island for two decades. The project involved renewing 126 metre of cast iron main in Le Pollet in the centre of St. Peter-Port. A technician from Steve Vick International Ltd, the company which supplies equipment for the technique, was on site to offer help and advice. Only one excavation was required for the insertion,...

The 6” low pressure main in the High Street of Paulton, near Bristol, was being replaced with a new PE pipe but one section needed to be kept live as it was feeding three homes. The National Grid Transco team used a FOAMBAG™ kit to flow stop the section to be abandoned before cutting out and tying the new PE to the live section. One-way traffic was maintained in the narrow, busy street....

This medium pressure gas main had previously been blanked off but the valve, acting as an end cap, was leaking. The customer, Manx Gas, decided that using the FOAMBAG™ technique to seal off the pipe was a costeffective alternative to conventional flow stopping methods. The project was carried out by our Special Contract Service team.

Bristol City Centre has recently undergone a major water mains replacement project in the heart of the city centre directly outside of the busy Bristol Hippodrome. The old 7”cast iron water main had been laid over 90 years ago. During the past 10 years the water main had experienced pipe bursting issues on 6 occasions and therefore was made part of Bristol Water’s 2009 replacement...