As an approved steel fabrication and supplier of engineered solutions for all three large joint ventures currently constructing the Thames Tideway Storm Sewer project in London, PSS were given the opportunity to tender for the detailed design manufacture and delivery of 14 modular large diameter stainless Vortex pipes and inlet channels. Two main contracts were awarded to PSS based on the technical and commercial elements of the tender submission and the clients previous experience working.
Vortex generators and liner pipes play a vital role in the interception of storm flow sewerage, that would normally be discharged into the Thames and in a controlled way, transfer this to the new Thames Tideway tunnel that runs from near Putney in the west end of London to a treatment plant in Essex.
The supply project has a three year programme, phased to suit the many interception locations.
Main challenges faced were:
- Control of geometric sizing to ensure module to module assembly (flange to flange).
- Geometrical sizing and criticality.
- Welding sequencing.
- Control of welding distortion.
- Control of subcontract operations
- Overall shape control during fabrication.
- Brexit proofing with raw materials.
- Temporary works solutions for lifting.
- Multi-site communication and document control.
How PSS has achieved the delivery:
- Attention to safety.
- Quality of workmanship.
- Understanding of the customers handling needs.
- Diligence with site specifics and buildability.
- Drawing and design quality.
- Attention to detail and problem/ issue solving and attitude.
- Timely execution of the works.
- Interdepartmental communication and doc control.
- Jig control.
- Skilled workforce and training to ensure that the quality is right first time.
- Supplier engagement
- Correct subcontractor choice.
- Temporary works accuracy
- Weld Prototyping to establish shrinkage.
The project is ongoing.
More about Power System Services
Power System Services has been providing solutions to industry since 1994. In an ever changing market PSS has emerged for providing the full package, from Design & Fabrication to Installation and ongoing Maintenance.
Power System Services provides Laser Cutting, capable of up to a 25mm depth on a 4m x 2m bed. The Laser Cutting service is complimented with the state of the art Ficep Excalibur drilling line and the 135tonne 4m press brake.
PSS has also achieved accreditation of Execution class 4 which is the highest achievable level. The Company is able to provide advanced level compliance to the CE marking required in Structural Steel Regulation, and competent to work on the most demanding, zero tolerance projects.
Upcoming projects
Power System Services has been appointed as the Principle contractor working with Sinoma on the installation of the Chlorine Bypass System at Lafarge Cauldon, work is set to begin mid-August 2021.
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