Flow Friend

Flow Friend 

 

The FlowFriend 
The standard FlowFriend has a mixed- ow pump housing, a type that is also often used at pumping stations. Its optimal field of application is for a pump lift of between 1 and 5 metres. The hydraulics have been designed such that greater pressure is available than with an axial (propeller) pump. As a result, signifcantly less energy is used in comparison to pumps of similar capacity. Almost all pumps with high capacity have more than 10 metres of pressure. This high available pressure uses a great deal of energy. If there is higher back pressure to any extent, resulting for example from longer hose lengths, numerous bends and difference in height, then this ‘standard’ FlowFriend is the optimal choice. The FlowFriend has a 3” screw thread connection at both the suction and the pressure sides.

Motor and seal
The FlowFriend has a very 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%.

Dry-running or submersible pumps
The FlowFriend is a dry-running pump with a sealed shaft. This technology is superior from an energy and safety perspective to submersible pumps (in which the pump’s shaft rotates in water). This is why almost all pumps used for industrial applications are pumps with a sealed shaft. As with dry running pumps, the shaft and the stator are positioned extremely close to each other, they have signifcantly lower energy loss in operation by comparison with submersible pumps. Submersible pumps always require a compromise. If the distance between the stator and the shaft is very small, there is a high risk of damage due to dirt that is stuck between the shaft and the stator. However, as this distance increases, the pump’s energy losses increase quadratically.
If the stator in a submersible pump becomes damaged, direct contact between the core (with voltages exceeding 300V) and the water is possible. This is why a submersible pump is not recommended for applications in which people touch the water or swim in it.

The FlowFriend Series:

• extremely energy efficient
• standard  ow/rpm controls
• optional 0-10V control
• high flows at low energy consumption
• extremely quiet
• a highly efficient new generation of permanent magnet motor
• 3 different optimised pump housings, cast completely of stainless steel grade 316
• optimal adjustment for versatile application
• a premium efficiency IE4 motor
• can be used anywhere in the world ranging from 100-240V/50-60Hz

Technical Data:

Weight (kg)	14.2
Country of manufacture	Netherlands
Pressure max.	7.0 m1
Max. flow (m3/hour)	70
Outlet (mm)	3" BSP / 3" BSP
Protection Class	IP55
Dimensions (mm)	367x236x258
Material	aisi 304 stainless steel

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