Tech File: Aussie Bronze Pump Upgrade
When an old cast iron Stalker pump failed on Petuna Endeavor in the Southern Ocean, there was an urgent need for swift action.
The faulty pump was replaced with an Aussie GMP B3XR-A 5.5 kW 3 inch model. NiAl bronze pump that fits into the application area like a glove.
The pump produces a flow rate of 1400 l / min and offers a maximum head of 26 m. The 5.5kW motor means there is plenty of power to drive it and the pump, a self-priming design, will pull water through a vertical rise of up to 6m.
The B3XR-A is a key part of the Aussie GMP product line of pumps designed for a range of work boats, from tugs to trawlers and barges.
The pumps are all made from nickel-aluminum bronze, a material similar to that used by military specifications on mission critical systems.
The unit is tightly coupled to a rugged TEFC three-phase motor and mounted on a steel base.
The carbon mechanical seals have an alumina backing, a nitrile rubber gasket and a 316 stainless steel housing. The heart of the pump is a large, open style NiAl bronze impeller designed to pump small suspended solids which can pass through the suction port of the pump.
Marine applications for the pump include deck washing, bilge pumping, salvage work, and even marine air conditioning. Due to its material of construction, pumps are also applied to contaminated sewage, pumping acid or solvent, and industrial food waste.