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Verdermag Any mag drive you want we got it

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TB, U and V&W SeriesAs a result of thorough research and cooperation w<strong>it</strong>h the best technicaldesigners Verder can now present <strong>you</strong> the ne<strong>we</strong>st <strong>mag</strong> <strong>drive</strong> series, w<strong>it</strong>hthrust balancing (TB–series) and universal purpose pumps (U–series).Also available is the V&W series, based upon the TB series, verticalinline pumps w<strong>it</strong>h the same benef<strong>it</strong>s and features as the TB series.The patented Thrust Balancing Design eliminates axial thrust bearingsand provides the basis for a controlled internal environment. Thisdesign minimizes the issue of secondary containment by providingsecondary bearings.Working principleThe single, enclosed impeller/<strong>mag</strong>netassembly is free to rotate and slideon the central cantilevered shaft. Themain flow of liquid enters the impeller(1) and is pressurized and thenexpelled into the volute (2) and outthe discharge. A small portion of theflow passes behind the impeller andthrough the back <strong>we</strong>ar ring clearance(3) and then into the balancechamber. This liquid than flowsthrough, past the bushings (4) to ex<strong>it</strong> at the valve (5). If the impellermoves forward, the valves is opened to a greater degree and thebalance chamber pressure is reduced. This causes the impeller to reactw<strong>it</strong>h a net force towards the motor. Ho<strong>we</strong>ver, the valve is now closingand the balance chamber pressure increasing. This moves the impellertowards the suction. The net result is a very stable axial pos<strong>it</strong>ion forthe impeller. There are no axial bearings and the radial bearings alwaysoperate in a pressurized fluid environment.motorpedestalouter motorpump shaftimpellercontainment tubebackplateVolute case

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