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System Design Guide

How To Specify A Heap Leach Drip Irrigation System

A practical guide for mining engineers and project managers on how to specify emitterline, fittings, valves, and system components for a heap leach irrigation project.
Engineering & System Design
Drip lines distributing lixiviant across a heap leach pad
35+
Years engineering heap leach systems
No Cost
Engineering review for qualified projects
Pump-to-Plug
Complete hydraulic and BOM coverage
4 Steps
From project data to detailed quote

Step 1

Gather Project Data

The first step is to compile all relevant data about your heap leach project. The more detailed the information, the more optimized your system design will be.

Heap Leach Pad Dimensions

Length, width, lift height, and side slope angles — including any phased expansion plans for future lifts.

Ore Type & Crush Size

Mineralogy, agglomeration status, and crush gradation (e.g., agglomerated copper ore, 1/2 inch minus).

Target Application Rate

Solution application rate in L/h/m² or gal/h/ft², along with target leach cycle duration.

Lixiviant Chemistry

Acid concentration, pH, cyanide levels, oxidizers, and any aggressive constituents that affect material selection.

Water Source & Quality

TDS, suspended solids, hardness, iron, and other contaminants that drive filtration and emitter selection.

Site Layout & Elevations

Location of pump station, ponds, and heap pad — plus elevation deltas that drive pressure regulation strategy.

Detail of Ore-Max emitterline on heap leach pad

Max-Emitterline

Engineered for heap leach

Diameter · Flow rate · Spacing

Step 2

Select Emitterline Configuration

Based on your project data, our engineers will recommend the optimal emitterline diameter, flow rate, and spacing — balancing run length, application uniformity, and ore permeability.

  • Diameter (16 mm vs. 20 mm)

    Sets the maximum single-run length while maintaining pressure. 20 mm allows for longer runs than 16 mm on the same pad geometry.

  • Flow Rate (1.5 to 8 LPH)

    Matched to ore infiltration capacity and target application rate. Higher flow rates are used for more permeable ores.

  • Emitter Spacing

    Distance between emitters along each line (18", 24", 36"). Closer spacing yields more uniform wetting — essential for less permeable ores.

Step 3

Specify Supporting Components

A complete system requires pipes, fittings, valves, and pressure regulators to control and distribute solution from pump to plug.

Our engineering team will produce a full bill of materials for your project, including mainline and submain pipes, pressure regulators to manage elevation changes, isolation valves for zone control, and all required fittings, connectors, and end plugs. You can browse these components in our product catalog.

Browse System Components
Solution piping manifold with valves

Step 4

Request an Engineering Review & Quote

Once your project data is gathered, send it to our team for a free engineering review, system design, and detailed quotation.

  1. 1

    Submit Project Data

    Share pad geometry, ore characteristics, application targets, water chemistry, and site layout. Use the consultation form or send to your Ore-Max contact.

  2. 2

    Engineering Review

    Our engineers evaluate your inputs, identify any data gaps, and follow up with targeted questions before starting the hydraulic model.

  3. 3

    Hydraulic Model & BOM

    We produce a complete hydraulic model with zone-by-zone pressure and flow, plus a detailed bill of materials covering every component from pump to end plug.

  4. 4

    Detailed Quote & Timeline

    You receive a comprehensive quote, delivery schedule, and installation guidance — ready to share with procurement and your contractor.

Related Resources

Continue learning about heap leach distribution design before requesting a quote.

Ready to Start Your System Design?

Contact the Ore-Max team today to begin the process. We are ready to assist with projects of any size, anywhere in the world.