Replacement Tube Design

You might be modifying an existing Polytunnel, building your own Polytunnel from scratch, or just need a replacement tube as part of your yearly maintenance.

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Steel Specification

25.4mm x 1.2mm Wall Diameter - Z35 High Tensile Galvanised
35.0mm x 1.5mm Wall Diameter - Z35 High Tensile Galvanised
50.8mm x 1.5mm Wall Diameter - Z35 High Tensile Galvanised
60.3mm x 1.5mm Wall Diameter - Z35 High Tensile Galvanised

The length of swage for each tube are as follows:

  • 25.4mm-51mm
  • 35.0mm-70mm
  • 50.8mm-83mm
  • 60.3mm-90mm

The OD of a swaged tube are as follows:

  • 25.4mm-22.0mm
  • 35.0mm-31.0mm
  • 50.8mm-46.8mm
  • 60.3mm-56.3mm
  • Should you require a different length, or with a flattened end or ends?
  • A 'Flattened' joint creates a nominal loss in the length of 5mm - Example a tube 100cm long (1000mm) with 'Flattened Ends' at each end will result in a final length of 99cm (990mm). Flattened End for 60.3mm is not available.
  • Please email us at info@highlandpolytunnels.co.uk