Normalized Centrifugal PumpFBCN 200-500
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
850 m³/h
Head
55–132 m w.c.
Absorbed power
90–420 HP
NPSH required
3–9 m
Maximum efficiency
82%
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 200-500 pump at 1750 rpm, per the official FB Bombas technical catalog (curve CC-0206.09), with ISO 9906 hydraulic guarantees. Reference plot for pre-sizing — confirm the operating point with FB Bombas engineering.
- Flow range
- 0.0 – 850.0 m³/h
- Head range
- 55.0 – 132.0 m
- Impellers
- 6 × Ø 504–400 mm
- Speed
- 1750 rpm · CC-0206.09
Hydraulic envelope — all impellers
Overlaid H × Q curves. Each color represents one impeller diameter.
- Ø 504 mm
- Ø 480 mm
- Ø 460 mm
- Ø 440 mm
- Ø 420 mm
- Ø 400 mm
Impeller Ø 504 mm
| Flow · m³/h | 0.0 | 250.0 | 500.0 | 700.0 | 850.0 |
|---|---|---|---|---|---|
| Head H · m | 132.0 | 128.0 | 120.0 | 112.0 | 103.0 |
Impeller Ø 480 mm
| Flow · m³/h | 0.0 | 250.0 | 500.0 | 680.0 | 800.0 |
|---|---|---|---|---|---|
| Head H · m | 120.0 | 116.0 | 108.0 | 98.0 | 90.0 |
Impeller Ø 460 mm
| Flow · m³/h | 0.0 | 250.0 | 450.0 | 650.0 | 760.0 |
|---|---|---|---|---|---|
| Head H · m | 110.0 | 106.0 | 99.0 | 88.0 | 80.0 |
Impeller Ø 440 mm
| Flow · m³/h | 0.0 | 250.0 | 450.0 | 620.0 | 730.0 |
|---|---|---|---|---|---|
| Head H · m | 100.0 | 96.0 | 89.0 | 79.0 | 70.0 |
Impeller Ø 420 mm
| Flow · m³/h | 0.0 | 250.0 | 450.0 | 600.0 | 710.0 |
|---|---|---|---|---|---|
| Head H · m | 90.0 | 86.0 | 79.0 | 70.0 | 60.0 |
Impeller Ø 400 mm
| Flow · m³/h | 0.0 | 200.0 | 400.0 | 550.0 | 680.0 |
|---|---|---|---|---|---|
| Head H · m | 82.0 | 79.0 | 72.0 | 64.0 | 55.0 |
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 | 504 mm | 32 mm |
| 2 | 480 mm | 32 mm |
| 3 | 460 mm | 32 mm |
| 4 | 440 mm | 32 mm |
| 5 | 420 mm | 32 mm |
| 6 | 400 mm | 32 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 200-500 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)