Vogelsang Rotary Lobe Pumps

Cutting-edge technology for agricultural, biogas, industry, and wastewater

The Rotary Lobe Pump Principle

How Vogelsang rotary lobe pumps work: The rotary lobe pump is a positive displacement pump. The pumping principle is based on two counter-rotating pumping elements, known as the rotary lobes. These are mounted on two synchronized shafts. The rotational movement of the lobes increases the volume of the pumping chamber on the suction side. This creates suction, which draws the medium into the rotary lobe pump. As the rotational movement continues, the medium is then enclosed in cavities between the rotary lobes and pump housing and it is issued on the discharge side by the pumping chambers as they reduce in size again; the rotary lobe pump conveys the medium directly. Due to their mirror-symmetrical design, rotary lobe pumps are independent of the direction of rotation and can pump in either direction without restriction. The HiFlo lobes developed in the 1990s operate pulsation-free, ensuring low-vibration and exceptionally gentle pumping.

  • Easy maintenance, quick on-site service thanks to access to the pumping chamber simply by disassembling the cover
  • Cost-effective operation thanks to a high degree of efficiency
  • Comprehensive range of features and options
  • Self-priming, resistant to dry running and foreign matter
  • Long service life

Progressive Cavity Pumps

Progressive cavity pumps are rotating, positive displacement pumps. The basic principle of the progressive cavity pump was invented in 1930 and it is based on a rotor turning in a stationary stator. The rotor is shaped like a feed screw with a large pitch and flight depth and a small core diameter, and it rotates eccentrically in the stator. The stator, in turn, is shaped as a matching but double-threaded internal screw with a double pitch. Due to the geometry and the eccentric rotation of the rotor, cavities form, enclosing the medium and pumping it evenly from the suction side to the discharge side; the second flight of the stator acts as a pumping channel for the medium. Thanks to this pumping concept, progressive cavity pumps feature pumping at stable pressures proportional to the speed. Progressive cavity pumps in the CC series are particularly suitable for abrasive, viscous media such as sludge and organic suspension, even when they contain large quantities of coarse foreign and disruptive matter and/or need to be pumped against a high pressure.

  • Easy and quick to service with minimal space requirements
  • No disassembly of the discharge-side and suction-side pipes necessary
  • Variety of options for changing parts
  • The Quality Cartridge mechanical seal can be changed without opening the pump
  • Sturdy cardan shaft with protective sleeve

XRipper XRC

Grinding technology is needed for many different applications: Whether to avoid blockades caused by wet wipes in sewers, cut down foreign matter and prepare the suspension in biogas plants or for treatment of various food remnants in the food industry. Systems for the management of debris and heavy material are a good addition in many cases for easy and efficiency handling of the separated out foreign matter. This serves both for conditioning the respective medium as well as for protect downstream components used in subsequent process steps.

Advantages of the Vogelsang XRipper XRC

  • Reliable shredding of disruptive matter in wastewater
  • Sewer Integration Kit (SIK) for easy installation in the pit
  • Maintenance and servicing on-site by own personnel

Benefits for the user

  • Wastewater pumps no longer clog
  • Unplanned maintenance jobs are no longer necessary