biochemicals and polymers remain unchanged during transport ”, explains Takumi Nasu , Head of Development at Lutz-Pumpen GmbH . The pumps work with an eccentric screw that rotates inside a static housing , thereby dividing the medium across individual chambers and conveying it along these chambers . This gentle pumping process only subjects the medium to a low mechanical load , which minimises the danger of shear stress .
A consistent flow rate without pressure peaks and dead times The B70 series eccentric screw pumps also guarantee low levels of pulsation during operation . “ The flow rate is constant and there are no sudden pressure peaks . This is advantageous not only for the stability of the transported medium but also minimises the dead time during which no liquid is pumped ”, says Nasu . With a three-phase motor producing up to 900 revolutions per minute , the pumps achieve a flow rate of up to 120 l / min , a delivery head of up to 6 bar and are suitable for immersion depths between 500 mm and 2,500 mm . It is also possible to measure the flow rate indirectly via the speed of the rotor . “ Responding to the need of some users for a mobile solution that enables them to deploy the pump at several locations , we have launched the B70H for horizontal use on a transport trolley that can be easily pushed by one person . This solution is also suitable for confined spaces – for example in areas with low ceilings .”
Empty a 200-litre drum 14 times on a single battery charge : B3 takes on wired devices Lutz Pumpen will present another mobile pump solution at Pumps & Valves 2025 : the B3 Battery , a battery-powered drum pump suitable for mobile operation to empty liquids from drums , canisters and IBC containers . This new pump has a range of uses that include transferring acids , bases and solvents in the chemical industry , pumping liquids such as syrups , essences and cleaning agents in the food and beverage industry and pumping fertilisers or pesticides in water treatment and agricultural applications .
“ In developing the B3 Battery , we have succeeded for the first time in making the performance of a battery-operated drum pump comparable to that of cable-connected versions ,” says Andreas Rössler , Head of Sales at Lutz Pumpen GmbH . The pump is equipped with a brushless 320- watt DC motor offering a flow rate of up to 180 litres per minute and a delivery head of 11.8 metres of water . A single battery charge is enough to empty a 200-litre drum 14 times in just under 15 minutes . At a lower speed , for example , an IBC container with 1,000 litres can be pumped out 5.8 times in 51 minutes . The pump tube is available in different versions to convey as many chemicals as possible for water treatment applications . These include a polypropylene ( PP ) version for sodium hydroxide and a polyvinylidene fluoride ( PVDF ) version for chloric acid .
For further information please visit www . lutz-jesco . com
Issue 72 PECM 97