English 
Fairbanks Nijhuis
BiFlow Pumps - BF Series
During loading and off-loading of ships the anti-heeling and ballast system is in full operation and crucial for the duration of the process. Since time is money, ship owners desire a quick turn around when in ports. The Pentair Fairbanks Nijhuis' innovative anti-heeling/ballast BiFlow is the answer to this demand.
The BiFlow is a bi-directional, in-line pump/turbine. It is specially designed for the transport of large amounts of ballast water, in situations with limited space.
Contact
Drawing of the BiFlow ballast and anti-heeling pump
Features
- High capacity: 1,000 - 3,000 m³/h (4,403 - 13,208 USgpm)
- Differential head: up to 25m (82 feet)
- Bi-directional operation
- In-line assembly; only one pump with high efficiencies
- Compact design, less pumps needed in the ballast system
- Large performance envelope
- Symmetrical forward and reverse performance
- Fast control response
- Low noise and vibration levels
- Dry and submersible configuration
functional description
Applications
- Static or dynamic ballast control
- Ship locks and docks
- Bow thrusters
The BiFlow is a bi-directional, inline anti-heeling/ballast pump/turbine combination, specially designed for pumping large amounts of ballast water. The assembly is symmetrical, consisting of two counter-rotating impellers with variable speed. The driver is submerged and completely integrated.
This configuration ensures high
efficiency and controlled flow in both directions to opposing ballast tanks. Compared to conventional ballast systems, the BiFlow delivers better performance with capacities up to 3.000 m3 per hour, enabling ships to ballast quickly and save considerable time and costs in port. In addition, the BiFlow saves space; it can be installed in the double bottom section of the ship, submerged or dry.
specifications
|
BF2-300.340 |
BF2-350.390 |
BF2-400.450 | BF2-450.650 | BF2-500.550 | |
|
pump speed 1/min |
-1500 +1500 | -1200 +1200 | -1000 +1000 | -900 +900 | -800 +800 |
| nominal flow m3/h | -1150 + 1150 | -1400 +1400 | -1600 +1600 | -2000 +2000 | -2500 +2500 |
| nominal head m3/h | -18 +18 | -16 +16 | -16 +16 | -16 +16 | -16 +16 |
| installed power kW | 2x55 | 2x60 | 2x75 | 2x90 | 2x110 |
| connection ISODIN | 300 NP10 | 350 NP10 | 400 NP10 | 450 NP10 | 500 NP10 |
| LxHxB m/m | 1500x570x680* | 1750x670x790* | 2000x760x900 | 2500x810x930 | 2500x950x1130* |
