The Fairbanks Nijhuis BiFlow pump is a bi-directional, in-line ballast / anti-heeling pump. This pump is specially designed for the transport of large amounts of ballast water, where space requirements and piping must be reduced to a minimum to ensure a high system efficiency.

The configuration is completely symmetrical, consisting of two counter-rotating impellers with variable speed. The driver is submerged and completely integrated with the pump. This configuration ensures a high efficiency and controlled flow in both directions to opposing ballast tanks. The BiFlow can be installed in the double bottom section of the ship, submerged or dry.

• Capacity: 4,403 - 13,208 GPM (1,000 - 3,000 m³/h)
• Head: up to 98 feet (30 m)
• Bi-directional operation In-line assembly
• Large performance envelope
• High overall efficiency
• Symmetrical forward and reverse performance
• Minimum of space and piping
• Fast control response Low noise and vibration levels