The operator of a waste water treatment plant was looking for a pump with dry-run capability for his flotation system. In the flotation system, substances on the surface of the flotation tank are suctioned off using a rotating suction arm.
Previously an eccentric screw pump had been used for this purpose. However, this pump had the disadvantage of needing extra water, to prevent dry running and required a lot of space and drive power.
The operator then opted for a Boerger Rotary Lobe Pump. In addition to its dry-run capability, its minimum space requirements, the wide choice of material and the low drive power, the customer was also impressed with the low maintenance design of the Boerger Rotary Lobe Pump.
|Börger||Rotary Lobe Pump|
|Rated capacity||50 - 90 m³/h (220 -396 usgpm/h)|
|Speed||250 - 420 rpm|
|Pressure||2 bar (29 psi)|