FB Submersible pump - FB10RA/5A 10'' - Cast Iron
10'' radial cast iron submersible pump for clean water - DN250 - Maximum Flow Rate 1417 l/min - H(m) 78 - Motor to be added: recommended FB 8F50 3~400 (50 HP – 37 kW) or compatible
PRODUCT CODE: FB10RA/5AFB radial-flow submersible pump end, FB10R series, in cast iron, for clean water in 10” wells (DN 250). 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
FB10R SERIES FEATURES
- maximum flow rate: 2167 l/min
- maximum head: 649 m
- maximum power: 150 kW
- maximum overall diameter: 242 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: 50 HP – 37 kW
- Recommended motor: FB 8F50 – three-phase 400 V, direct start
- Flow rate: 250 – 1417 l/min
- Head: 78 – 188 m (191 m at zero flow)
- Discharge outlet: DN 100
- Maximum diameter: 242 mm
- Pump end length: 1040 mm
- Pump end weight: 114 kg
- Speed: 2900 rpm
PERFORMANCE
| Flow rate l/min | Flow rate m³/h | Flow rate l/s | Head m |
|---|---|---|---|
| 0 | 0 | 0 | 191 |
| 250 | 15 | 4.2 | 188 |
| 417 | 25 | 7 | 186 |
| 500 | 30 | 8.3 | 184 |
| 667 | 40 | 11.1 | 178 |
| 833 | 50 | 13.9 | 167 |
| 1000 | 60 | 16.7 | 151 |
| 1167 | 70 | 19.5 | 129 |
| 1333 | 80 | 22.2 | 96 |
| 1417 | 85 | 23.6 | 78 |
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 50 HP (37 kW), to be purchased separately. Below you will find the recommended motor and all compatible motors.
RECOMMENDED MOTOR
FB 8F50 – three-phase 400 V, direct start: 8” submersible motor, cast iron, PVC winding, 50 HP – 37 kW.
COMPATIBLE MOTORS (50 HP – 37 kW)
Cast iron, PVC winding
standard cast iron motor, rewindable, water filled, 2 poles 2900 rpm
- FB 8F50 – three-phase 400 V, direct start
- FB 8F50 – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
- FB 8F50 – three-phase 230 V
Cast iron, PE2+PA winding
PE2+PA insulation: suggested for high temperatures, voltage surges and inverter use
- FB 8F50C – three-phase 400 V, direct start
- FB 8F50C – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
- FB 8F50C – three-phase 230 V
Cast iron, high temperature
for hot water up to 75°C
- FB 8F50H – three-phase 400 V, direct start
- FB 8F50H – 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 8F50X – three-phase 400 V, direct start
- FB 8F50X – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
- FB 8F50X – three-phase 230 V
AISI 316 stainless steel, PE2+PA winding
PE2+PA insulation: suggested for high temperatures, voltage surges and inverter use
- FB 8F50XC – three-phase 400 V, direct start
- FB 8F50XC – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
- FB 8F50XC – three-phase 230 V
AISI 316 stainless steel, high temperature
for hot water up to 75°C
- FB 8F50XH – three-phase 400 V, direct start
- FB 8F50XH – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
AISI 904L stainless steel, PVC winding
for very aggressive, brackish or sea water
- FB 8F50X904 – three-phase 400 V, direct start
- FB 8F50X904 – 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 8F50X904C – three-phase 400 V, direct start
- FB 8F50X904C – 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 8F50X904H – three-phase 400 V, direct start
- FB 8F50X904H – star-delta 400/690 V (requires a Y/Δ control panel and 6-core cable)
Not sure this is the right pump for your system?
Answer a few questions, no technical data needed: one of our technicians will email you the right pump and its control panel, free and with no obligation. Try the configurator ›
Online sale Order now!
Free shipping






