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Greenfield Water Scheme – Clutha District Council

Polyweld NZ has been contracted by Southern Trenching & Excavating LTD to carry out all HDPE welding activates on the Greenfield Water Scheme for the Clutha District Council.

This water pipeline will be constructed utilising both traditional trenching and trenchless methodologies. The project requires butt welding of all PE pipelines ranging in diameter from 180 – 400mm. Polyweld has had multiple crews working on this project to meet specific project deadlines during a very challenging winter of 2023. The project has had its difficulties with delays caused by weather, winter crops and lambing season.

Scope of works

  • Mobilise all required equipment to the site
  • Complete PE butt & EF welding, including stub flange welding as required, in-trench & above Ground String Welding of the following sizes and metres
  • Supply OD400 PN20 PE100 – Water – 1485m
  • Supply OD400 PN16 PE100 – Water – 16862m
  • Supply OD 315 PN16 PE100 – Water – 1852m
  • Supply OD225 PN12.5 PE100 – Water – 1769m
  • Supply OD180 PN20 PE100 – Water – 2473m
  • Supply OD180 PN16 PE100 – Water – 2610m
  • Supply OD180 PN12.5 PE100 – Water – 3592m

Polyweld has commissioned a brand-new Hurner 500mm & 355mm Butt Welder especially for this project along with other specialist plant & equipment to complement our welding operation.

Talk to us about your next pipeline project.