When ships tilt to port or starboard and don’t return back to their upright position, it is known as „heeling“ of the vessel. Heeling is unsafe for ship, machineries and people on board. The main reasons for heeling are strong winds, hard and speedy turns and especially uneven cargo loading. Anti Heeling systems correct undesirable movements of ships by transfer of ballast water between the heeling tanks. Leistritz offers a L2NG solution as reversible and seawater resistant pump up to bar and approx. 400 m³/h which can replace the otherwise needed centrifugal pump including the complicated valve periphery as shown in below sketch.
Further benefit: high stability of pumped flow rate in connection with speed control.