Valve replacement sitting at 25m depth

MMP were commissioned to remove and replace two 3.5 tonne gate valves at one of the UK’s largest inland reservoirs. This project required meticulous planning as the valve tower is centrally located in the reservoir with the deepest valve sitting at 25 metres.

After a detailed dive survey, MMP’s dive team were able to carry out the phased removal of the valves by formulating a step-by-step approach via our detailed 3D modelled reporting. This enabled all parties involved in the project to visualise the task at hand and collaboratively establish the best course of action.   

All lifting equipment, plant and diving equipment was mobilised on to our bespoke diving platforms. This streamlined the process as we were able to conduct all lifting and transport operations independently of the diving platform.

Each section of the valve including the debris screen was carefully removed, lifted to the surface and towed to the reservoir bank for removal.

The removal phase of the project was carried out on budget and ahead of schedule. The team will benefit from lessons learnt when carrying out this uniquely challenging project and apply these to the next phase.