Agriculture consumes over 80% of India's freshwater. Every drop lost to leaking pipes, rusted joints, and burst mainlines is water that doesn't reach your crops. HDPE pipes solve all three problems — they don't rust, their fused joints don't leak, and they last 50+ years without maintenance.
Why Farmers Are Switching to HDPE
| Problem with Old Pipes | How HDPE Solves It |
|---|---|
| GI pipes rust from inside, reducing flow | HDPE has smooth bore for life — no rust, no scale buildup |
| PVC becomes brittle in sun, cracks easily | HDPE is UV-stabilised with carbon black — handles outdoor exposure |
| Threaded/glued joints leak over time | HDPE heat-fused joints are permanently leak-free |
| Metal pipes corrode in acidic soil | HDPE resists all soil chemicals and fertilisers |
| PVC replacement every 15–20 years | HDPE lasts 50+ years — a one-time investment |
Which Pipe for Your Irrigation System?
Select your irrigation type to see the recommended pipe specification.
PE 63 / PE 80, SDR 21–26, 20–63mm OD
Low pressure. Lateral lines connect directly to drip emitters.
PE 80 / PE 100, SDR 17–21, 63–110mm OD
Medium pressure. Quick-coupling latch-type pipes recommended.
PE 100, SDR 11–17, 110–315mm OD
High volume. Large diameter mains with butt fusion joints.
HDPE Pipe Selection for Common Farm Applications
| Application | Pipe Size (OD) | Pressure (PN) | SDR (PE 80) |
|---|---|---|---|
| Drip irrigation laterals | 16–25mm | PN 4 | SDR 26 |
| Drip irrigation mainline | 63–110mm | PN 4–6 | SDR 26–17 |
| Sprinkler lateral | 40–63mm | PN 4–6 | SDR 21–17 |
| Sprinkler mainline | 63–160mm | PN 6 | SDR 17 |
| Borewell rising main (shallow) | 50–90mm | PN 10 | SDR 13.6 |
| Borewell rising main (deep) | 63–110mm | PN 12.5–16 | SDR 11–9 |
| Farm water supply (gravity) | 63–110mm | PN 2.5–4 | SDR 41–26 |
| Farm water supply (pump-fed) | 63–160mm | PN 6–10 | SDR 17–13.6 |
Drip Irrigation Systems
Drip irrigation delivers water directly to the root zone of each plant, minimising evaporation and runoff. The mainline pipe carries water from the pump to the field, where it connects to submain pipes and then to drip laterals (inline or online drip lines).
- Mainline: 63–110mm HDPE PN 4–6 — carries full system flow from pump to field
- Submain: 50–75mm HDPE PN 4 — distributes to groups of laterals
- Laterals: 16–20mm inline drip line — delivers water to individual plants
- Always install a sand filter and disc filter at the pump outlet to prevent dripper clogging
Sprinkler Irrigation Systems
Sprinkler systems distribute water through pressurised nozzles that spray water over the crop canopy. They require higher pressure than drip systems, making proper pipe sizing critical.
- Mainline: 75–160mm HDPE PN 6 — sized for total system flow rate
- Submain: 63–90mm HDPE PN 6 — carries water to groups of lateral lines
- Lateral: 40–63mm HDPE with quick-coupling ends — feeds 4–8 sprinkler heads
- Riser: 20–32mm connecting lateral to individual sprinkler head
- Operating pressure at nozzle: 2.5–3.5 bar for standard impact sprinklers
TARKO manufactures both HDPE mainline pipes (IS 4984:2016) and quick-coupling sprinkler pipes specifically designed for field-assembled sprinkler irrigation systems. Available in 40–160mm.
Government Subsidies for HDPE Pipes in Agriculture
Indian farmers can access significant subsidies for micro-irrigation systems (which include HDPE pipes) through:
- PMKSY (Per Drop More Crop) — up to 55% subsidy for drip/sprinkler systems in most states
- State agriculture department schemes — additional state-level subsidies vary by state
- NABARD refinancing — banks offer agricultural loans at subsidised interest rates for irrigation
- Eligibility: BIS/ISI certified pipes are mandatory for all subsidy claims — non-ISI pipes are not eligible
Frequently Asked Questions
Which HDPE pipe is best for farm irrigation?
For drip mainlines: 63–110mm PN 4–6. For sprinkler mainlines: 63–160mm PN 6. For borewell rising mains: 50–90mm PN 10–16. Always choose BIS/ISI certified IS 4984 pipes.
Is HDPE pipe better than PVC for farming?
Yes, for most applications. HDPE is more flexible (handles ground movement), lasts 50+ years (vs 20 for PVC), resists UV damage, and has leak-free fused joints. The slightly higher cost is recovered within a few years through zero maintenance.
What subsidy is available for HDPE pipes in Maharashtra?
Under PMKSY, farmers can get up to 55% subsidy for micro-irrigation (drip/sprinkler) systems, which includes HDPE pipes. Contact your district agriculture office for current scheme details.
Tools & Related Resources
Need Help Choosing the Right Pipe?
Our team at TARKO will help you select the correct size, SDR and pressure rating for your project.