8F FB Submersible Motors

From 22kW to 110kW

FLANGE 8” NEMA

PROTECTION RATING  IP68

INSULATION CLASS :

– Y (PVC version)
– F (PE2+PA version)
– F (HT version)

NUMBER OF STARTING EACH HOUR   MAX. 10

Installation VERTICAL OR HORIZONTAL (92kW and 110kW motor no horizontal)

50-60Hz VOLTAGE TOLERANCE:

-10% / +10%
[Un (400V-10% = 360V)
(400V+10% = 440V)]

MINIMUM COOLING RATE: 0,15m/s

INSTALLATION BELOW THE WATER LEVEL UP TO 500m

MAX. STORAGE TEMPERATURE -15°C / +60°C

MOTOR CABLE (WRAS, KTW, ACS APPROVED) FOOD GRADE 0.6 / 1kV

F.B.’s 8” rewindable motors are studied for long-term operation in wells with diameters of 8” or greater. Water-lubricated axial and radial bearings ensure a long service life and maintenance-free operation. The motors are pre-filled with a special antifreeze fluid so that they can be stored down to -15°C. A special membrane compensates the pressure inside the motor.BRONZE-ALUMINIUM, AISI 316, DUPLEX, AISI 904L and SUPER DUPLEX motors are available for applications in aggressive water.

Product Benefits

  • Industry-leading efficiency with low operating costs
  • Sand protection: the sand-guard and silicon-carbide SIC-SIC mechanical seal protect against sand during operation
  • The cast iron motor support has been treated with cataphoresis to prevent corrosion (STANDARD version)
  • The “Michell” bi-directional thrust bearing made of a resin and graphite compound can withstand up to 70.000N
  • The rotors are balanced and ground along the whole axis
  • The stators are generously dimensioned
  • The windings are made by hand
  • Disassembly and maintenance is exceptionally simple
  • The power cable complies with drinking water regulations
  • The motors are pre-filled with clear water and propylene glycol
  • Ready for installation of a PT100 sensor

Options

  • Special voltages
  • Special frequencies
  • Motors up to 92kW with PE2/PA double insulation for maximum temperatures of 60°C (110kW max. 50°C)
  • High-temperature motors up to 75°C HighTemp
  • YΔ starting: 90° cable outlet position
  • PT100 temperature sensor
  • Flat cable
  • Cables with different lengths up to a maximum of 50m
  • Coupling flange compliant with non-NEMA standards
  • Vertical and horizontal cooling jackets
  • 4-pole motors (1450rpm / 50Hz) (1750rpm / 60Hz)

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