In a production facility for construction materials containing bitumen, a Börger rotary lobe pump is used to convey the bitumen which reaches temperatures of up to 200 °C. The pump feeds a filling station in 24-hour operation. The pump speed and the flow rate can be varied by means of a frequency converter. The bitumen is heated to a temperature of between 160 and 200 °C as the medium can be conveyed best at this temperature, having a viscosity of approx. 10,000 mPas. If the medium cools down, its viscosity increases to values of up to 100,000 mPas. In order to prevent the medium from cooling inside the pump, the Börger rotary lobe pump is equipped with a steam heater cover. The customer is very satisfied with the Börger rotary lobe pump.
|Börger||Rotary Lobe Pump|
|Viscosity||10.000 to 100.000 mPas|
|Temperature||160 - 200°C|
|Rated capacity||5 - 10 m³/h|
|Speed||170 - 250 rpm|