Normalized Centrifugal PumpFBCN 200-250
Large-capacity model for critical industrial installations: refineries, steel mills, chemical plants, municipal water supply and mining. Back pull-out construction per ASME B73.1.
Performance Envelope — 1750 rpm
Maximum flow
950 m³/h
Head
5–27 m w.c.
Absorbed power
22–50 HP
NPSH required
5–11 m
Maximum efficiency
85%
Envelope read from the official 1750 rpm curve PDF (chart-reading precision, ~±half a grid division). For design, confirm the values with the FB Bombas engineering data sheet.
Performance Curves
Q × H hydraulic envelope of the FBCN 200-250 pump at 1750 rpm, per the official FB Bombas technical catalog (curve CC-0203.09), with ISO 9906 hydraulic guarantees. Reference plot for pre-sizing — confirm the operating point with FB Bombas engineering.
- Flow range
- 0.0 – 950.0 m³/h
- Head range
- 5.0 – 27.0 m
- Impellers
- 4 × Ø 269–234 mm
- Speed
- 1750 rpm · CC-0203.09
Hydraulic envelope — all impellers
Overlaid H × Q curves. Each color represents one impeller diameter.
- Ø 269 mm
- Ø 254 mm
- Ø 241 mm
- Ø 234 mm
Impeller Ø 269 mm
| Flow · m³/h | 0.0 | 250.0 | 500.0 | 750.0 | 950.0 |
|---|---|---|---|---|---|
| Head H · m | 27.0 | 24.0 | 20.0 | 15.0 | 10.0 |
Impeller Ø 254 mm
| Flow · m³/h | 0.0 | 250.0 | 500.0 | 700.0 | 850.0 |
|---|---|---|---|---|---|
| Head H · m | 24.0 | 21.0 | 17.0 | 13.0 | 8.0 |
Impeller Ø 241 mm
| Flow · m³/h | 0.0 | 250.0 | 450.0 | 650.0 | 800.0 |
|---|---|---|---|---|---|
| Head H · m | 21.0 | 18.0 | 15.0 | 11.0 | 6.0 |
Impeller Ø 234 mm
| Flow · m³/h | 0.0 | 200.0 | 400.0 | 550.0 | 650.0 |
|---|---|---|---|---|---|
| Head H · m | 19.0 | 17.0 | 13.0 | 9.0 | 5.0 |
Available impeller diameters
Each pump ships with the impeller diameter calculated by FB engineering for the specific operating point — design flow and head.
| # | Impeller diameter | Impeller useful width |
|---|---|---|
| 1 | 269 mm | 57 mm |
| 2 | 254 mm | 57 mm |
| 3 | 241 mm | 57 mm |
| 4 | 234 mm | 57 mm |
| 5 | 222 mm | 57 mm |
| 6 | 196 mm | 57 mm |
| 7 | 170 mm | 57 mm |
Typical applications
- Cooling systems for chemical plants and refineries
- Industrial water lines in steel mills and mining
- Treated water pumping in water utilities
- Large NFPA-20 fire-fighting systems
- Lubricating oil cooling for turbomachinery
Frequently Asked Questions
Technical questions about the FBCN 200-250 centrifugal pump.
Physical dimensions and detailed curve
FBCN large-capacity models do not have individual physical dimensions published in the standard technical manual. Each project receives dimensional drawing, project-specific performance curve and material selection through direct consultation with FB Bombas engineering.
- Dimensional drawing with base, flanges, shaft and shaft end per ASME B73.1
- Printed performance curve at the project operating point
- Material selection (cast iron / steel / 316 stainless / duplex) by fluid
- API 682 mechanical seal plan (1, 2, 11, 21, 31, 32, 53A, 53B, 53C)