Jindal SAW Ductile Iron Polyurethane-Lined (DIPU) Pipe is used in applications where standard cement mortar lining isn’t suitable. Polyurethane lining provides better protection from highly abrasive or soft water than cement mortar.
Polyurethane is applied to the inside of the pipe with a thickness of 700–2000 microns. This lining has a higher abrasion and chemical resistance which allows it to be used with very soft water or industrial sewage. The large inside diameter of ductile iron pipe results in less head loss while smooth polyurethane surface provides high flow coefficient, both resulting in pumping and energy savings.
Centrifugally cast ductile iron pipe offers high tensile strength, ductility, hardness, and impact resistance. Choose from a range of external coatings to protect against soil corrosivity and other elements.
The large inside diameter of ductile iron pipe results in less head loss while smooth polyurethane surface provides high flow coefficient, both resulting in pumping and energy savings.
Our DIPU pipe comes in a large size range (DN100–750) and pressure range (PN20, PN35, Flange Class) to suit civil and mining requirements.
BS EN 15655-1:2018 (Polyurethane lining of pipes and fittings)
AS/NZS 4020:2018 (Testing of products for use in contact with drinking water)
AS 1646:2007 (Elastomeric seals for water purpose)
Zinc (mean mass 200g/m2) with blue or red epoxy (min 80µm DFT) or bitumen finishing layer