The majority of pumps for irrigation are centrifugal pumps, which use centrifugal force to move the water through a sprinkler pump. Multi-stage pumps for irrigation force water through more than one impeller and casing to increase water pressure along the irrigation route. Common types of centrifugal irrigation pumps include end-suction centrifugal pumps, submersible pumps and turbines or jet pumps. Submersible pumps, turbines and jet pumps submerge the pump under water, while an end-suction centrifugal pump remains out of water.
Displacement pumps move heavy or thick liquids and are another type of agricultural water pump. If you plan to use fertilizer mixed into the water, you need to use a displacement pump for the irrigation water pumps. Piston, diaphragm, roller-tube and rotary pumps are displacement pumps.
Before you choose a water pump for irrigation:
- Find out the specific flow and pressure requirements for your project.
- Design your irrigation system to match your needs.
- Evaluate which type of irrigation pump is the most cost efficient in your situation.
Action Steps
The best contacts and resources to help you get it done
Determine whether your sprinkler pump needs a booster pump
Booster pumps work in much the same way as multi-stage centrifugal pumps in that booster pumps increase the water pressure along the irrigation route. To find the right amount of pressure needed, you subtract the desired pressure from the actual pressure. If the pressure shows in PSI, you need to multiply by 2.31 to find the pressure in feet head.
I recommend: Look at the benefit of a booster pump. Davey Pumps Inc specializes in
Pressure Booster Systems designed for boosting pressure in irrigation water pumps. Talk to the experts at
Akland Pump and Irrigation.
Irrigation-Mart offers a complete line of products.
Choose diesel powered irrigation pumps
Diesel powered pumps work well as pumps for irrigation in areas with limited electricity. Most diesel pumps are designed for fuel economy while maintaining optimal performance.
I recommend: Work with a company that offers several brands of diesel pumps. Mid-Atlantic Irrigation carries several brands or
diesel pumps including John Deere, Perkins, Isuzu and Deutz.
Use an electric powered water pump for irrigation
Irrigation pump suppliers generally offer diesel and electric irrigation pumps. With the price of fuel continually increasing, many people prefer to use an electric pump. Electrical irrigation pumps reduce the costs associated with fuel.
I recommend: Use a company that understands irrigation systems.
Berkeley’s product catalog offers several types of irrigation pumps. If you have a question,
ask the Pump Experts.
Tips & Tactics
Helpful advice for making the most of this Guide
- Fuel powered irrigation pumps use different formulas than electric powered pumps to calculate flow, pressure and horse power.
- Pressure should be expressed in feet head, not PSI.
- Lower pressure results in higher flow.
The official source of Irrigation Pumps is the Irrigation Pumps page at Business.com
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