FA Series
FA Series EN733 Horizontal Centrifugal Pump
BS EN733 / DIN24255 end-suction pump, 2 to 1100 m³/h and head to 152 m, for building services fire and irrigation
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Industry
Irrigation and Agriculture
High-volume end-suction pumps for field and scheme irrigation, sized from a published curve at 50 Hz or 60 Hz.
Industry Pain Points
What Goes Wrong on These Duties
- Flow that matters more than headIrrigation duties are usually volume problems, and a pump selected on head alone lands in the wrong part of its curve.
- Abrasive and aggressive source waterRiver, canal and borehole water carries grit and dissolved salts that thin a cast iron impeller quickly.
- Supply frequency assumptionsSchemes run on both 50 Hz and 60 Hz supplies, and the same pump delivers a very different duty on each.
- Seasonal duty with long idle periodsA pump that stands idle between seasons corrodes differently from one that runs continuously.
What Buyers Need
What a Pump Has to Deliver Here
- High flow capability across a wide size band
- Impeller materials that resist erosion from grit-bearing water
- Published speed ranges at both supply frequencies
- Simple construction that a farm or scheme team can maintain
Multi-level pallet racking filled with pump components in the finished parts warehouse
Recommended Pumps
Series Specified for Irrigation and Agriculture
DE Series
DE Series Water Centrifugal Pump
Process-duty water pump from DN 25 to DN 400 with flow to 600 m³/h for water and waste water
View specificationsTypical Scenarios
Where These Pumps Are Installed
- Scheme irrigation mainsFA series pumps at the high-flow end of the 2 to 1100 m³/h envelope.
- Field distributionMid-range sizes from the DN32 to DN250 band at moderate head.
- Canal and river abstractionBronze impellers on grit-bearing surface water.
- Transfer to storageDE series pumps moving volume between reservoirs and header tanks.
Delivery Capability
How We Handle an Order for This Duty
- Supply frequency confirmed with the duty point before selection
- Bronze impeller as standard on the FA series for abrasive water
- Gland packing available where field repacking is preferred to seal replacement
- Complete sets crated for export as shown on the factory tour
Go Deeper
Solutions and Guides for This Industry
Solution
Pump Material Selection
Cast iron through to UHMW-PE. How the Flowsteer range maps onto water that ranges from clean to chemically hostile.
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Solution
Sealing and Bearing Solutions
Mechanical seals, gland packing, labyrinth and lip ring sealing, and where each belongs across the Flowsteer range.
Read moreBuying Guide
How to Read a Pump Curve
A published envelope such as 2 to 1100 m3/h is a range of sizes, not the capability of any one pump. Here is how to get from it to a selection.
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Comparison Guide
Mechanical Seal vs Gland Packing
One needs no attention and cannot be adjusted. The other needs attention and can be. The installation decides which is right.
Read moreTroubleshooting Guide
NPSH and Cavitation
Cavitation is not a pump defect. It is a suction system defect that destroys the pump, and it is almost always designed in rather than developed.
Read moreQuestions
Irrigation and Agriculture Pump FAQ
What is the highest flow you can supply for an irrigation duty?
The FA series publishes flow from 2 to 1100 m³/h. The size and speed are selected from the duty point, so send both the flow and the head required.
Does the supply frequency change the pump selection?
Yes, substantially. The FA publishes 1450 to 2900 rpm at 50 Hz and 1750 to 3500 rpm at 60 Hz, and the whole curve shifts with speed. Always state the frequency.
Should I choose a mechanical seal or gland packing for a field pump?
Gland packing can be repacked in place with basic tools, which suits a remote installation, but it has to drip to stay cool. A mechanical seal needs no adjustment but has to be replaced rather than tightened. Both are available on the FA series.
What impeller material suits grit-bearing canal water?
Bronze is standard on the FA series and resists erosion better than cast iron. Where the grit loading is severe, tell us and we will review the selection with you.
Specify a Pump for Irrigation and Agriculture
Send the duty point, the supply frequency and what the liquid is. We will name the series, the size and the published specification.