Stakeholder - Asset International Limited

Weholite is a large diameter gravity/low pressure structured wall pipe made from high density polyethylene (HDPE) resin.

A viable alternative to traditional construction materials such as concrete, Weholite combines raw material properties with advanced product technology to create a lightweight engineered pipe with superior loading capacity.


Weholite products are used to convey liquids or gases, above or below ground and underwater. Pipes can be joined in a variety of ways, from the non-watertight plastic band to the 100% watertight Teekay mechanical coupler or the hand extrusion weld to the full penetration machine weld for marine applications.

Standard Weholite can be used at a continuous operating pressure of one bar, with LP Weholite suitable for pressures up to two bars.

Asset International’s Weholite provides all the technical advantages of polyethylene solid wall pipes, but the substantial savings in weight and ease of installation offers lower overall costs than traditional materials. Additionally, the carbon footprint of Weholite is dramatically lower than that of its traditional material counterparts.


Weholite applications include:

  • Storm water attenuation tanks
  • Culverts
  • CSO attenuation tanks
  • Cooling water intakes
  • Manholes
  • Pumping chambers
  • CSO control chambers
  • Marine outfall
  • Ventilation pipes and chambers
  • Surface drainage
  • Inter-process pipework
  • Foul sewers
  • Ground air heat exchanger
  • Anaerobic digestion chambers
  • Rainwater harvesting tanks

Weholite pipes are designed, manufactured and installed in accordance with national and international standards such as BS EN 1295, BS EN 13476 and WIS 4-35-01.

For more Weholite applications please visit:

Weholite Modular

Marine and Turnkey Projects

Housing Sector and SUDS

Water Industry and AMP

Renewable Energy

Contact Us

Asset International Limited

Stephenson Street,


South Wales,

NP19 4XH

T: 01633 273081

F: 01633 290519


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Our Herne Bay development called for a bespoke implementation due to space restrictions on site. As Weholite pipes are lightweight and easy to manoeuvre, they could be easily offloaded from the lorry and placed directly into the trench, which also removed a number of health and safety issues and saved a considerable amount of time.

"Asset’s ability to create a custom drainage solution to our exact specifications was highly impressive. The team were reliable, fast and efficient and the project was a complete success due to their professionalism and drainage expertise."

Taylor Wimpey

Weholite was the ideal choice of pipe for our soakaway systems at the Topsham Road site due to it being lightweight and fast to install. We pride ourselves on building housing developments that are well protected against the elements and Asset has played a vital part in making this possible.”

Robin Milliner, CJL Construction
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