irripipe – Irrigation Design

irripipe is a hydraulic calculator for engineers, dealers and installers who design irrigation systems. Size pipes and check pressure loss, flow variation and water velocity in the field, even without internet.

Six calculation types:
• Drip lateral: maximum line length, flow variation (FV), distribution uniformity (DU), PC and non-PC emitters, slope, flushing
• HDPE PE100 pipe: section-by-section velocity, friction loss, pressure class (PN/SDR), automatic diameter selection
• PVC pipe and PE (sprinkler/coil) pipe
• Submain: lateral-by-lateral pressure profile, maximum length, diameter selection, flushing
• Valve: loss from Kv/Cv, cavitation risk (σ), relief valve size

Reports: Save every calculation as a PDF report with charts. With Pro, share reports by email or WhatsApp and add your own company logo to the report header.

Six languages (Turkish, English, Russian, Arabic, French, German), light and dark theme.

Privacy: No account needed. Your data stays on your device; no ads, no tracking.

Subscription: The first 7 days are free (3 calculations per day). Pro is available as a monthly or yearly subscription and renews automatically unless cancelled.

WHO IS IT FOR
• Irrigation designers and engineers who size drip, sprinkler and mainline pipes
• Dealers and installers who prepare quotes and want a quick check in the field
• Farmers who want to know how long a drip line can be or which pipe diameter to buy

HOW IT CALCULATES
A drip lateral is solved emitter by emitter from the end of the line to the inlet, so pressure loss, flow variation and the maximum lateral length follow the real flow in the pipe. Friction loss is calculated with Darcy-Weisbach for drip laterals and with Hazen-Williams for HDPE, PVC and PE pipes and submains; local losses and elevation are included. On a mainline, each section starts with the smallest diameter that keeps water velocity under 2 m/s and gets the lowest pressure class that covers its working pressure.

IN THE FIELD
Calculations work without internet. Saved calculations stay in the app, so you can open them again on site.

Results are for preliminary design and should be checked by a qualified irrigation specialist before use.

Recent changes:
First release: drip lateral, HDPE, PVC, PE, submain and valve calculations; PDF reports; 6 languages; light and dark theme. 7-day free trial.