CE Case Study Two

Flow Meter Replacement & Valve Install

Loch Turret Treatment Works

The 33” Loch Turret outlet main is the primary water source for the west coast of Scotland, feeding nearly 60,000+ properties directly including Grangemouth refinery with a wider network of over 300,000 customers. The main has a daily output of about 70 million litres of water a day. The high-risk nature of this work means a significant amount of time was spent planning & programming, whilst also considering the clients’ needs for continued delivery of its water supply. It highlighted WGM’s commitment in working closely with all divisions of Scottish Water to safely construct & deliver all aspects of the work.

  • Supply, cut & fusion weld 150m x 500dia SDR17 overland bypass pipework

  • Load test lifting points + all plant & lifting equipment

  • Fill, flush, pressure test & BACTO sample pipework in line with DOMS regulations

  • Construction of manhole chambers for bypass valve arrangement

  • Excavate & with temporary works expose 33” steel outlet water main at 2no. locations

  • Calliper 33” main & fabricate offsite 2no. under pressure, saddles to suit

  • Concrete thrust blocks surrounding the saddles

  • Drilling & line stop equipment to isolate a section of live water main and divert through the bypass

  • Keel Cutting equipment to remove a section of 33” steel water main

  • Pipe work & fittings to suit new meter arrangement including contingency arrangement

  • Electrical commissioning and telemetry tie-in

WGM Engineering


WGM Engineering promises to always recognise and celebrate success. WGM Engineering will always publicise our successes and communicate these to all employees. Full recognition will be given to teams and individuals who successfully deliver and contribute to a successful WGM.