FB Submersible pump - FB8RA/20 8'' - Cast Iron
8'' radial cast iron submersible pump for clean water - DN200 - Maximum Flow Rate 750 l/min - H(m) 236 - Motor to be added: recommended FB 8F75 3~400 (75 HP – 55 kW) or compatible
PRODUCT CODE: FB8RA/20FB radial-flow submersible pump end, FB8R series, in cast iron, for clean water in 8” wells (DN 200). The stages with limited axial size provide high heads with medium-low flow rates.
Cast iron impellers make the range robust and suitable for deep wells, with the highest safety of the installation and high efficiency.
APPLICATIONS
- agriculture
- fire fighting
- water supply
- pressure boosting
- industry
- irrigation
CONSTRUCTION
- valve casing, discharge casing, stage casings and impellers in EN-GJL-250 cast iron
- journal sleeves, wear rings and spacer sleeves in ASTM B148 bronze
- shaft bush in AISI 420 stainless steel
- valve wing, cable guard and bolts in AISI 304 stainless steel, NBR valve seat
FB8R SERIES FEATURES
- maximum flow rate: 1333 l/min
- maximum head: 858 m
- maximum power: 92 kW
- maximum overall diameter: 198 mm (cable guard included)
- maximum water temperature: 60°C (pump end only; for the motor see the motor page)
- maximum sand content: 30 g/m³
ON REQUEST
- GCuSn10 (B10) bronze impellers
- AISI 316 stainless steel impellers
TECHNICAL DATA
- Motor power to couple: 75 HP – 55 kW
- Recommended motor: FB 8F75 – three-phase 400 V, direct start
- Flow rate: 83 – 750 l/min
- Head: 236 – 512 m (521 m at zero flow)
- Discharge outlet: G 3”
- Maximum diameter: 198 mm
- Pump end length: 1856 mm
- Pump end weight: 164 kg
- Speed: 2900 rpm
PERFORMANCE
| Flow rate l/min | Flow rate m³/h | Flow rate l/s | Head m |
|---|---|---|---|
| 0 | 0 | 0 | 521 |
| 83 | 5 | 1.4 | 512 |
| 167 | 10 | 2.8 | 502 |
| 250 | 15 | 4.2 | 488 |
| 333 | 20 | 5.6 | 470 |
| 417 | 25 | 7 | 444 |
| 500 | 30 | 8.3 | 412 |
| 583 | 35 | 9.7 | 374 |
| 667 | 40 | 11.1 | 317 |
| 750 | 45 | 12.5 | 236 |
Tolerances according to EN ISO 9906 annex A gr. 2. Complies with EU Reg. 547/2012 (MEI ≥ 0.40).
PERFORMANCE CURVE
Curve drawn from FB catalogue data.
Price refers to the pump end only: motor, coupling and cables not included.
PUMP END WITHOUT MOTOR
To run the pump you need a 8” submersible motor of 75 HP (55 kW), to be purchased separately. Below you will find the recommended motor and all compatible motors.
RECOMMENDED MOTOR
FB 8F75 – three-phase 400 V, direct start: 8” submersible motor, cast iron, PVC winding, 75 HP – 55 kW.
COMPATIBLE MOTORS (75 HP – 55 kW)
Cast iron, PVC winding
standard cast iron motor, rewindable, water filled, 2 poles 2900 rpm
- FB 8F75 – three-phase 400 V, direct start
- FB 8F75 – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
- FB 8F75 – three-phase 230 V
Cast iron, PE2+PA winding
PE2+PA insulation: suggested for high temperatures, voltage surges and inverter use
- FB 8F75C – three-phase 400 V, direct start
- FB 8F75C – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
- FB 8F75C – three-phase 230 V
Cast iron, high temperature
for hot water up to 75°C
- FB 8F75H – three-phase 400 V, direct start
- FB 8F75H – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
AISI 316 stainless steel, PVC winding
for aggressive or chloride-rich water
- FB 8F75X – three-phase 400 V, direct start
- FB 8F75X – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
- FB 8F75X – three-phase 230 V
AISI 316 stainless steel, PE2+PA winding
PE2+PA insulation: suggested for high temperatures, voltage surges and inverter use
- FB 8F75XC – three-phase 400 V, direct start
- FB 8F75XC – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
- FB 8F75XC – three-phase 230 V
AISI 316 stainless steel, high temperature
for hot water up to 75°C
- FB 8F75XH – three-phase 400 V, direct start
- FB 8F75XH – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
AISI 904L stainless steel, PE2+PA winding
PE2+PA insulation: suggested for high temperatures, voltage surges and inverter use
- FB 8F75X904C – three-phase 400 V, direct start
- FB 8F75X904C – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
AISI 904L stainless steel, high temperature
for hot water up to 75°C
- FB 8F75X904H – three-phase 400 V, direct start
- FB 8F75X904H – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
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