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Air Aqua FlowFriend Standard Variable Speed DC Pump


Air Aqua

Regular price $2,500.00


When it comes to energy efficiency, FlowFriend pumps are ahead of the curve.

FlowFriend conforms to the top MEI (Minimum Efficiency Index) category (above 0.7) Current European Union regulations call for a minimum MEI of 0.4.


  • Energy efficient
  • Adjustable flow/RPM rate
  • Optional 0-10V control
  • Very quiet operation
  • Efficient next-gen permanent magnet motor
  • 316-grade stainless steel wet end construction
  • Premium efficiency IE4 motor
  • The motor is developed and manufactured in Germany
  • Worldwide application, accepts voltages ranging from 100 - 240V / 50 - 60 Hz

Adjustable motor speed (600 - 2,550 RPM) is a standard feature on all FlowFriend pumps. The digital display on top of the motor shows current power consumption and hours of operation. The 0-10V port allows for external control.

Utilizing a permanent magnet motor instead of a frequency-controlled asynchronous motor allows for very high energy efficiency at low RPM. Even at high RPM, the permanent magnet motor is still very energy efficient.

Stainless Steel Pump Housing

The hydraulic wet end consists of the stainless steel impeller and impeller housing. FlowFriend uses 316-grade stainless steel. The hydraulic wet end was designed and shaped to keep flow losses minimal.

The FlowFriend Standard has a mixed-flow type pump housing. The hydraulic wet end has been designed so that more pressure is produced than an axial (propeller) pump. As a result, the FlowFriend Standard uses significantly less energy in comparison to pumps of similar capacity.

The FlowFriend Standard is the optimal choice for filtration applications with higher back pressure caused by long pipe runs, pipe bends and water lift heights. The optimal application for the FlowFriend Standard is pumping water between three and fifteen feet in lift height. The wet end housing features a 3” threaded male adapter on both the input and output.

Motor and Seal

The FlowFriend features a high-quality Eagle Burgmann shaft seal. The motor has been designed in-house and is manufactured by one of Germany’s largest and most important producers of electrical motors. The motor’s efficiency, depending on the RPMs, is between 88% and 94%.


The pump’s performance can best be shown by means of pump graphs and specifications. The pump was tested at a testing facility that is compliant with the NEN-EN-ISO 9906 standard. The pump meets the European Directive 2009/125/EC (eco-design requirements for water pumps).

FlowFriend Adjustable Speed Pump Specs

FlowFriend Pump Performance Ratings:

700 rpm: 18m3/hour @ 0 meter @ 40 Watt
1100 rpm: 30m3/hour @ 0 meter @ 80 Watt
1500 rpm: 41m3/hour @ 0 meter @ 145 Watt
1900 rpm: 51m3/hour @ 0 meter @ 195 Watt

1200 rpm: 20m3/hour @ 1 meter @ 120 Watt
1400 rpm: 29m3/hour @ 1 meter @ 160 watt
1800 rpm: 42m3/hour @ 1 meter @ 260 Watt
2100 rpm: 50m3/hour @ 1 meter @ 360 Watt

1600 rpm: 20m3/hour @ 2 meter @ 230 Watt
1800 rpm: 31m3/hour @ 2 meter @ 295 watt
2000 rpm: 40m3/hour @ 2 meter @ 370 Watt
2300 rpm: 50m3/hour @ 2 meter @ 495 Watt

1900 rpm: 21m3/hour @ 3 meter @ 335 Watt
2000 rpm: 27m3/hour @ 3 meter @ 380 Watt
2200 rpm: 39m3/hour @ 3 meter @ 490 Watt
2500 rpm: 52m3/hour @ 3 meter @ 690 Watt

2200 rpm: 25m3/hour @ 4 meter @ 490 Watt
2300 rpm: 32m3/hour @ 4 meter @ 550 Watt
2400 rpm: 39m3/hour @ 4 meter @ 605 Watt
2400 rpm: 23m3/hour @ 5 meter @ 610 Watt
2500 rpm: 35m3/hour @ 5 meter @ 730 Watt

The results:
The result of the pump is best displayed in the charts pump. The pump was tested at a test facility that meets the following standards: BS EN ISO 9906.
The test bench and the prototype was shown during the Interkoi April this year in Germany. The flow test bench and production FlowFriends will to be showed during the Koishow in Arcen. Not only is the flow/pressure characteristic shown, but also a so-called Power Curve. Here you can at any point of the graph also also the exact energy of the pump will consume!

FlowFriend PumpThe FlowFriend pump is a dry mounted pump for the circulation of freshwater.

The Flowfriend Pump has been specially designed to pump large volumes of water in the head range between 0 and 5 meters with ultra energy savings reflected in their running costs.

FlowFiend Pumps are Suitable for:

• Bead Filters
• Multi-chamber Systems
• Drum Filters
• Endless Belt Filter
• Waterfalls
• Moving Bed Filters
• Trickle filters

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