Boerger BLUEline Cast Iron Rubber Screw Pump
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Max. Capacity 1,600 m³/h
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Max. Pressure 12 bar

Boerger BLUEline Cast Iron Rubber Screw Pump
Wide variety of Rotary lobe pumps, Blue Line Cast Iron Rotary Lobe Pump from Boerger can withstand solids. High flow rate even with increasing pressure
The solids-resistant BLUEline rotary lobe pump has been used successfully in different sectors for many years. Including agricultural industries and biogas plant, Pump technology for disaster relief, Environmental and Municipal Technology, and Oil and Gas Industry, Cosmetic and Cleaning Agents and more.
Specifications
The perfect pump size for every single application
The BLUEline rotary lobe pump is available in 21 different sizes. With flow rates between 1 and 1,600 m³/h, there is always a pump which is perfectly suited to every single application.
The BLUEline rotary lobe pump series at a glance:
Series Pump size |
Min. speed in rpm |
Max. speed in rpm |
Min. flow rate in m³/h |
Max. flow rate in m³/h |
Max. pressure in bar |
Max. temp. in °C |
BLUEline AL - | 50 | 800 | 0.75 | 36.00 | 12 | to 200 °C |
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50 | 800 | 0.75 | 12.00 | 12 | to 200 °C |
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50 | 800 | 1.50 | 24.00 | 8 | to 200 °C |
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50 | 800 | 2.25 | 36.00 | 4 | to 200 °C |
BLUEline PL - | 50 | 700 | 2.50 | 150.00 | 12 | to 200 °C |
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50 | 700 | 2.50 | 38.00 | 12 | to 200 °C |
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50 | 700 | 5.00 | 75.00 | 8 | to 200 °C |
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50 | 700 | 8.00 | 115.00 | 4 | to 200 °C |
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50 | 700 | 10.50 | 150.00 | 4 | to 200 °C |
BLUEline CL - | 50 | 600 | 7.80 | 190.00 | 12 | to 200 °C |
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50 | 600 | 7.80 | 94.00 | 12 | to 200 °C |
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50 | 600 | 12.00 | 140.00 | 8 | to 200 °C |
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50 | 600 | 15.50 | 190.00 | 4 | to 200 °C |
BLUEline FL - | 50 | 600 | 17.00 | 410.00 | 12 | to 200 °C |
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50 | 600 | 17.00 | 205.00 | 12 | to 200 °C |
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50 | 600 | 25.00 | 310.00 | 8 | to 200 °C |
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50 | 600 | 33.00 | 410.00 | 4 | to 200 °C |
BLUEline EL - | 50 | 600 | 30,00 | 1,100.00 | 10 | to 200 °C |
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50 | 600 | 30.00 | 370.00 | 10 | to 200 °C |
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50 | 600 | 45.00 | 560.00 | 5 | to 200 °C |
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50 | 600 | 65.00 | 810.00 | 3 | to 200 °C |
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50 | 600 | 92.00 | 1,100.00 | 2 | to 200 °C |
BLUEline XL - | 50 | 600 | 52.00 | 1,600.00 | 10 | to 200 °C |
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50 | 600 | 52.00 | 635.00 | 10 | to 200 °C |
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50 | 600 | 80.00 | 955.00 | 6 | to 200 °C |
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50 | 500 | 105.00 | 1,050.00 | 4 | to 200 °C |
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50 | 500 | 160.00 | 1,600.00 | 2 | to 200 °C |
Options
Unique throughout the world: the wide variety of rotors.
Börger has been building rotary lobe pumps for more than 20 years and offers a range of 21 different pump sizes. Each pump size has up to 9 different rotor geometries available in various materials. The specially patented design ensures that the sturdy rotor core and the shaft remain untouched by the pump medium at all times. Due to the many different factors involved when selecting the right rotor, the special requirements of the customer are always taken into account.
And by the way: rotors available for all sizes can also be fitted into any rotary lobe pump previously supplied. That is regardless whether it was bought 20 years ago or just last year.
Rotor
Optimum rotor*
- Large sealing area with effective scraper edges
- For abrasive and aggressive media
- Low-pulsation and stable under pressure
Unique Rotor*
Unique Rotor*
Premium PFA rotor*
Premium rotor*
- Large sealing area and stable under pressure
- For highly viscous, abrasive media
- Made of carbide / stainless steel or plastic
Premium profile rotor*
- The biogas rotor
- Extremely long service life
- Renewable resources form the sealing surface
Orbit rotor
*patented
Variocap as excess pressure protection
Safe operation with the variocap
The variocap is a simple and effective way to install protection from excess pressure.
The force produced by the pumping pressure acts on the pump cover, which consists of an outer ring and an inner, spring-loaded plate. As long as the spring force is greater than the pressure, the plate stays in the sealed position flush to the pump chamber. If the pressure rises above the set spring force, the plate moves axially and allows the pumped medium to flow back from the pressure side to the suction side. When the pressure subsides, the gap then closes again.
The complete variocap is hermetically sealed by a built-in elastic seal diaphragm and the other moving parts are untouched by the medium.
Benefits of the variocap
- Integrated pressure relief valve
- Non-clogging (no bypass required)
- Protects the pump and system from excess pressure and pressure surges
- Available for all pump series, easy to retrofit
- Made of steel or stainless steel