Boerger BLUEline Cast Iron Rubber Screw Pump

  • Max Capacity:

    1,600 m³/h

  • Max Pressure:

    12 bar

Description

Description

The Börger BLUEline Cast Iron Rotary Lobe Pump is an industry-leading solution for reliable, efficient fluid handling across a wide range of applications. Built with a robust cast iron casing, this pump is engineered to handle demanding conditions, including the transfer of fluids with solid content. Its solids-resistant design makes it ideal for use in sectors such as agriculture, biogas production, disaster relief, environmental and municipal technology, oil and gas, as well as cosmetics and cleaning agents.

Designed for high-performance, the BLUEline pump delivers consistently high flow rates, even as pressure increases, ensuring efficiency and reliability in processes requiring robust fluid handling. The pump’s long service life reduces maintenance needs, providing dependable, cost-effective operation over extended periods.

The BLUEline series offers 21 pump sizes with flow rates ranging from 1 to 1,440 m³/h and pressure handling up to 12 bar, allowing you to select the perfect configuration for your specific requirements. Each pump is customizable, with a variety of rotor options available to optimize performance for any application.

For precise performance data, rotor options, and additional customization features, visit Börger’s official website to explore how the BLUEline Cast Iron Rotary Lobe Pump can enhance your operational efficiency.

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

Dual-lobe, linear
  • The all-rounder
  • All-over rubber coating
  • For abrasive and aggressive media

Rotor

Tri-lobe, screw profile
  • All-over rubber coating
  • With unwetted core
  • Low-pulsation

Rotor

 

Tri-lobe, screw profile
  • Made of steel or stainless steel
  • Low pulsation
  • Resistant to foreign bodies

Optimum rotor*

Dual-lobe, screw profile
  • Large sealing area with effective scraper edges
  • For abrasive and aggressive media
  • Low-pulsation and stable under pressure

Unique Rotor*

Tri-lobe, linear
  • With replaceable lobe tips
  • With durable seal edges
  • For contaminated media

Rotor

Tri-lobe, linear
  • Made of steel or stainless steel
  • pressure-resistant

Unique Rotor*

Tri-lobe, screw profile
  • With replaceable lobe tips
  • For contaminated media
  • Low-pulsation

Premium PFA rotor*

Dual-lobe, linear
  • Large sealing area with effective scraper edge
  • Teflon-coated
  • Non-wetted core

Premium rotor*

Dual-lobe, linear
  • Large sealing area and stable under pressure
  • For highly viscous, abrasive media
  • Made of carbide / stainless steel or plastic

Premium profile rotor*

Dual-lobe, linear
  • The biogas rotor
  • Extremely long service life
  • Renewable resources form the sealing surface

Orbit rotor

Dual-lobe, linear
  • Made of steel or stainless steel
  • very little cavitation
  • no jamming of solids

*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