Rotary lobe pumps are robust and compact positive displacement pumps that are used in almost all areas of industry. Powerful, low-pulsation and gentle, they pump various media, including abrasive, viscous, sticky, particle- and gas-laden media.
These pumps are particularly suitable for pumping liquids ranging from low-viscosity media to highly viscous media. The pump can be operated in both directions of rotation and can be easily equipped with different drive systems.
Two counter-rotating pistons in a housing form the conveying chambers. During rotation, the chambers on the suction side enlarge, fill with the medium and transport it to the pressure side. There, the chambers shrink, displacing the medium. This principle ensures even and gentle conveying. By changing the direction of rotation, the conveying direction of the medium can easily be reversed.
Dosing, conveying, emptying and reversing. Frequently used for pumping waste water and sludge.
abrasive, corrosive and particle-laden media
Chemistry and surface technology
Industry
Waste water, recycling and the environment
Construction and transportation
Fire department, floods and disaster control
Agriculture and biogas
Börger Blueline rotary lobe pump for agriculture and biogas (DE)
Börger Blueline rotary lobe pump for agriculture and biogas (FR)
Börger Blueline rotary lobe pump for agriculture and biogas (EN)
Börger Blueline Nova rotary lobe pump (DE)
Börger Blueline Nova rotary lobe pump (FR)
Börger Blueline Nova rotary lobe pump (EN)
Börger pump technology for industrial applications EN)
Börger pump technology for industrial applications (FR)
Börger pump technology for industrial applications (EN)
Börger pump solutions for environmental and municipal technology (DE)
Börger pump solutions for environmental and municipal technology (FR)
Börger pump solutions for environmental and municipal technology (EN)
Dosing, conveying, emptying and reversing.
abrasive, corrosive, gaseous and particle-laden media
Food
Pharmaceuticals, fine chemicals & cosmetics industry
Dosing, conveying, emptying, reversing.
A mobile pump for versatile use: sludge, flood water, waste water or wherever flexibility is required. A compact design, problem-free pumping in slurping mode and operation at different speeds for different flow rates characterize these mobile pumps.
to abrasive, corrosive and particle-laden media
Waste water, recycling and the environmentFire department, flood and disaster protectionConstruction and transportationAgriculture and biogasIndustryChemistry and surface technologyPumps for disaster control from Börger (DE)
Pumps for disaster control from Börger (EN)
Pumps for disaster control from Börger (FR)
Börger EASYMOVE pump (DE)
Börger EASYMOVE pump (FR)
Compact mobile pumps from Börger (DE)
Compact mobile pumps from Börger (FR)
Börger dredge pump Photobooklet (DE/EN)
Rototec mobile rotary lobe pump in Bilten (DE)
Rototec mobile rotary lobe pump in Bilten (FR)
The ease of maintenance of the rotary lobe pumps allows the operating personnel to easily replace all wear parts such as pistons, mechanical seals or wear inserts directly at the pump's place of use without dismantling pipelines and drives. These compact pumps also impress with their excellent controllability at variable flow rates and delivery pressures. Their robust design ensures reliable and efficient handling of demanding media, making them the ideal choice for your applications.
The reliable function and low energy consumption of the pump depend to a large extent on the correct design. Specifications for the pumped medium such as temperature, viscosity, density and solids content determine the choice of pump unit and its size, in addition to process data such as flow rate, pressure and operating conditions. The materials used and their surface quality must also be suitable for the respective application. Optional requirements such as explosion protection, necessary certificates or special standards are also crucial. Structured recording of these parameters ensures that the solution is technically suitable, reliable and efficient in the long term.
Rotary lobe pumps are insensitive and are used in waste water, recycling and environmental applications as well as in chemical and surface technology. Fire departments, floods and disaster control are other areas of application for mobile pumps alongside construction and transportation. Hygienic stainless steel pumps are used in the food, pharmaceutical, fine chemical and cosmetics industries and are often also suitable for CIP and SIP. We offer you a wide variety of designs - tailored to your individual application.
When integrating a rotary lobe pump into an existing system, the focus is on smooth integration into the system. Existing pipelines, connection standards, space conditions and existing drive and control concepts are specifically taken into account in order to minimize adaptation costs and downtimes.
As part of retrofit projects, we replace your existing components or optimize your pump, for example to improve efficiency, operational reliability or ease of maintenance. A careful analysis of the current situation ensures that the new solution is technically compatible, existing processes continue to run stably and future requirements are taken into account.
We offer professional design, commissioning, training and manufacturer-specific maintenance for rotary lobe pumps. You can also obtain original spare parts, lubricants and accessories, including documented quality control, from our spare parts specialists. On request, we can supply certificates of conformity and material certificates as well as CE documentation. Clear service agreements, fast response times and traceable test reports, e.g. for leak testing, create predictability and security in your business.
Rototec supports you throughout the entire life cycle of your rotary lobe pump - from consultation and design to commissioning and ongoing operation. The aim is a technically sound implementation that focuses on reliability, ease of maintenance and cost-effectiveness right from the start.
Depending on the version, the pumps can run dry for short periods and are ideal for the suction of residual liquids.
Aqueous or highly viscous media are no problem. The speed of the pump is reduced for pumping highly viscous fluids. Thanks to the flexible speed, a pump can be used for pumping low-viscosity and high-viscosity media.
The delivery rate can be adapted to the respective pumping task via the pump speed. The high efficiency remains the same at any speed. The delivery range depends on the motor and pump size.
Pump housings are available in cast iron, cast steel, aluminum, stainless steel, duplex steel or Hastelloy.
Yes, we offer ready-to-connect, ATEX Directive (2014/34/EU) compliant, stationary, mobile or submerged pump units to meet your exact requirements and wishes.
On request, our rotary lobe pumps can be manufactured in accordance with Regulation EC 1935/2004, FDA §177.2600, UK WRAS or DIN 24256 / DIN 24255.
The rotary lobe pumps are available in a variety of different versions, including versions with hydraulic motor, bevel gear motor, semi-mounted gear motor or three-phase motor, as well as mobile versions with diesel engine. Pumps with feed screws are also available.
The pumps can be installed vertically, horizontally or suspended.
The oil in the quench chamber cools and lubricates the seals.
In the event of a seal failure, the intermediate chamber protects the gearbox against the ingress of the pumped liquid from the pump chamber. This ensures maximum operational reliability and service life.
The liquid in the quench chamber can be specified according to the conveying task, e.g. food-grade oil.
Depending on the application, different rotary lobe geometries can be used. A distinction is made between single-lobe, double-lobe and three-lobe displacers. There are also coiled pistons for the three-lobe displacers.
The most common materials for all-metal pistons are hardened steel, various stainless steels and Hastelloy. Plastic pistons are often made of NBR, FKM or EPDM; PUR and PFA are also available.
Mostly for food and chemical applications
Surface qualities of Ra 0.8 µm are possible.
Occasionally, finer surface qualities are also offered.
In addition to better controllability, larger solids can also be pumped.
The delivery direction can also be reversed for rotary lobe pumps.
