HDPE Irrigation Mainline Pipe - PE80 and PE100 Options

HDPE irrigation mainline pipe carries water from your pump or headworks to field valves and distribution branches. Choosing the right pipe helps the network deliver the required flow while keeping operating pressure within the selected pipe and fitting limits.

Select the complete pipe specification

Read each option as a complete combination of outside diameter, material grade, pressure class, SDR and wall thickness. The listed outside diameters are 32, 40, 50, 63, 75, 90, 110 and 160 mm. PE80 and PE100 options are available, with PN6, PN10 or PN16 classes where shown in the selector. Every diameter does not offer every combination.

• Outside diameter determines the nominal pipe size and the matching fitting size.
• PE80 or PE100 identifies the material grade; compare it together with the pressure class.
• PN identifies the listed nominal pressure class, rather than the flow capacity.
• SDR relates outside diameter to wall thickness. At the same outside diameter, a lower SDR means a thicker wall.
• Wall thickness affects the bore, so two pipes with the same outside diameter can have different internal flow areas.

Compare options without mixing their dimensions

For example, the listed 63 mm PE100 PN16 option has SDR11 and a 5.8 mm wall. The 63 mm PE100 PN10 option has SDR17 and a 3.8 mm wall. Choose one complete option; do not combine a pressure class from one line with a wall thickness from another. The product photograph does not establish a roll length or the dimensions of every available option.

Plan the route and operating conditions

Size the mainline for the combined flow of zones that will run together. Include route length, changes in elevation and pressure losses through filters, valves and fittings. Check normal operating pressure and pressure surges, and account for the actual service temperature when establishing the permitted operating conditions. A larger connection alone does not confirm that a long route will supply the required flow.

Match joints to the selected pipe

Choose compression or fusion connections that are specified for the selected outside diameter, material and pressure class. Confirm fitting compatibility and the required joining procedure before installation. Prepare clean, square pipe ends and support connections so bends or attached components do not load the joint. Flush debris from the completed line, then fill gradually and inspect the joints before operating the irrigation zones.

Store pack lengths and order confirmation

For options awaiting a quotation, the pack length in the selected label is a store default: one whole 100, 50 or 25 m roll, or one 6 m straight length, as shown for that option. These defaults are estimates based on pipe material usage. Confirm the actual order length and supplier fulfilment before ordering. Include the adapters and isolation points needed to connect the mainline to your irrigation fittings.