Weholite can be defined as spirally wound pipe or flat panel, manufactured from corrosion-resistant HDPE, to provide a light weight, engineered solution with superior loading capacity that is chemically inert and provides a projected 120-year design life.
Weholite products are used in a wide variety of applications including stormwater attenuation tanks, pumping stations, soakaways, flood relief culverts and CSO flood alleviation schemes.
Weholite pipe systems can also be used for more demanding situations such as inter-process pipework on sewerage treatment plants and for offsite build components, as well as for hydroelectric pipelines and intake structures, anaerobic digestion and air vent systems, and as storage, contact and inter-process pipework for drinking water applications.
In the design of water distribution systems, thermoplastic structured wall pipes represent a superior alternative because of their excellent physical, hydraulic and mechanical properties, and behave differently to traditional steel, ductile iron, concrete and other pipe systems.
The uniqueness of the Weholite production process means that pipes can be run in any length from 300mm to 30m in one piece. It is one of the few polyethylene pipes in the world that can be produced in dimensions larger than two metres and can be supplied in ring stiffness classes from 2 to 8kN/m².
Designed for both online and offline situations, Weholite systems are utilised by most of the major developers and adopted by all of the UK Water Companies. Pipeline products are also used in the Water Industry Capital Investment Programme (AMP) for water management infrastructure, and on major surface water drainage projects including highways development and repair, Network Rail improvements, Schools Building Programme, Energy from Waste projects and CSO flood alleviation for properties on the DG5 register.
In August 2019, SDS acquired the exclusive licence to manufacture and sell Weholite in the UK and Ireland.
SDS Weholite Jointing Systems
The most efficient method of jointing is selected for each specific application, in order to ensure that the pipeline remains watertight, durable and effective despite the potential for poor ground