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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.

Technical specifications

Brand

Jindal SAW Australia/NZ

Model

AS/NZS 2280

Size range

DN100–750 (4–30”)

Effective length

5.5m

Nominal pressure

PN20, PN35, Flange Class

End connections

Push-on rubber ring joint

Certification

AS/NZS 2280:2014 (Ductile iron pipe and fittings)
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)

Appraisals

PA1802 - Water Service Association of Australia (WSAA)

Material specifications

Internal lining

Polyurethane

External coating

Zinc-aluminium (mean mass 400g/m2) with blue or red epoxy (min 80µm DFT) or bitumen finishing layer
Zinc (mean mass 200g/m2) with blue or red epoxy (min 80µm DFT) or bitumen finishing layer
Polyurethane

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