Rotary lobe pump of the IQ series by Vogelsang
IQ series

Easy to use rotary lobe pump
IQ series

  • The easiest maintenance, rapid onsite service
  • Quick, optimum access to the pumping elements
  • Self-priming and resistant to dry running
  • Easy and flexible to integrate


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.

Service of the IQ rotary lobe pumps
How to dismount an IQ pump

  1. Open the pumping chamber:
    Simply unfasten a few screws, remove the pump cover and you have free access to the rotary lobes. This makes it quick and easy to inspect both the lobes and the pump cover itself. If necessary, you can also replace the wear plate in the pump cover.
  2. Dismount the rotary lobes:
    Unfasten the strain bolts, remove the pressure discs on the lobes, place the puller on the lobes and dismount them.
  3. Remove the wear plates:
    After you have removed the lobes, all you have to do is remove two screws and you can remove the wear plate at the gearbox side.
  4. Remove the Quality Cartridge mechanical seal:
    Using a simple pull-out device, you can now pull out the Cartridge mechanical seal and then replace it just as easily.
  5. Assembly:
    Fix the wear plate at the gearbox side with two screws, install the lobes and fasten them on the shaft with pressure disks, fit the pump cover and screw it in place.

Digitalize your product!
Control technology for Vogelsang technology

Investing in our progressive and smart control technology significantly boosts the performance and efficiency of Vogelsang machines and systems. It captures and continuously monitors key parameters like the capacity or throughput rate, rpm, pressure and power consumption. The control detects malfunctions early, and rectifies them by intervening appropriately. The integrated communication interfaces like ProfiNet and OPC UA can exchange data with other systems or a superordinate control in real time.

At the same time, the web-based user interface displays all key data clearly in all major browsers. Optionally, the data can be accessed on mobile devices for remote monitoring.

Our experts’ experience from hundreds of applications in various areas constantly inspires our software development and lays the foundation for the major benefits for the users: low operating costs, maximum availability and efficiency.

Our range of controls offers the right solution for all machine requirements and all customers’ needs. From ready-to-use, factory-tested and commissioned system solutions for end users, to basic versions for experts who want to put the finishing touches to the control technology themselves.

Options in control technology for the IQ series

Features of the IQ series

Quality cartridge: The mechanical seal for pumps by Vogelsang
The Vogelsang Quality Cartridge stands for modern sealing technology. The mechanical seal in cartridge design is manufactured automatically in the factory, completely pre-assembled and checked by computer. This makes it quick and easy to change on site: assembly errors are avoided and the time required is reduced. This means quick and easy replacement of the shaft seal as well as safe commissioning after seal replacement.

Additional information:

Unlike conventional lobes, Vogelsang’s HiFlo® lobes ensure pulsation-free pumping and consequently longer lifetimes for the drive and coupling. At the same time, the suction capacity is increased due to the higher number of sealing lines. The improved internal sealing enables suction from deep pits.

Additional information:
Larger lobes and pump covers can be installed in the IQ series
without making any modifications; this can increase capacity by as
much as 40%.
With QuickService, Vogelsang’s rotary lobe pumps are very easy to maintain: The lobes, seal, and wear plates can be replaced on-site without dismounting the pump. This saves money and ensures the highest possible level of equipment availability. Long downtimes are cut to a minimum.

Options of the IQ series

Alongside the standard model in abrasion-resistant gray cast iron, versions in stainless steel are stocked as well. Other options for customization include heat treatment and wear-resistant coatings for the wear plates and housing components.
An ATEX-compliant version can be supplied for use in areas subject to explosion hazards.

The IQ rotary lobe pumps

  • The universal pump[br]IQ112
  • The powerful pump[br]IQ152

The universal rotary lobe pump
Rotary lobe pump IQ112

Pumps in the IQ112 series are the ideal solution for when quick maintenance, cost-saving service, easy handling and maximum availability is needed. With capacities of up to 78 m3/h and pressures up to 7 bar, this is the cost-effective and easiest to maintain solution for difficult media such as primary sludge or media containing coarse matter (e.g. contaminated used oil).

The powerful rotary lobe pump
Rotary lobe pump IQ152

The pump IQ152 is ideal for greater capacities up to 154 m3/h and pressures up to 7 bar. It can be used in sewage and wastewater treatment plants as well as for industry applications, where a high availability thanks to reduced maintenance is needed.

Get in contact with Vogelsang India!

We will find the right solution for you