After
Before

Project

Veolia Stainless Steel Tanks

Project Value

£142,000

Date

December 2019

Job

Veolia

Overview

The client approached Watermark to assist in the design and manufacture of Coagulation and Flocculation Stainless Steel Tanks

Case Study

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Capability

Design, Fabrication, Installation,

stainless steel tanks

The client provided a technical specification and a preliminary basic model with the caveat that the design met all British Standards, European Directives and UK Health & Safety and Environmental regulations.

Watermark design included a stress analysis to prove buckling effects imposed by tank medium on the tank walls. Calculations for loadings imposed by third party walkways and ancillary equipment on top of the stainless steel tanks was also undertaken.

Manufacturing drawings were produced incorporating client’s additional works comprising hinged manway covers, pipe/instrumentation supports, Nozzle connections and interfaces with 3rd party structural steelwork.

The design and manufacture of Coagulation and Flocculation Stainless Steel Tanks offered the following benefits:

  • Phosphorus Removal Scheme

  • Welding of the stainless steel tanks was by Synergic MIG using a flux cored wire

  • Positional welding eliminated turning the tanks for down hand welding

  • A 10% Dye Penetrant inspection of the welds was undertaken before a fill test with water

  • Tank sizes 30M³ and 90M³ respectively with a combined weight of 20 tonnes

coagulation_stainless-steel-tanks

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