Rotary Lobe Pumps for Advanced Applications

Revolutionary Design for Viscous Media – The GEA Hilge NOVALOBE range in the GEA Varipump line is specifically designed for viscous media – and for applications where gentle pumping or dosing is required.

The GEA Hilge NOVALOBE pump range meets the highest hygienic requirements and is EHEDG certified.

Robust Construction

Through the pump’s robust construction the shaft overhang and clearance in the pump have been minimized. The pump’s compact design and the rigid shaft geometry reduce the risk of galling to an absolute minimum. The GEA Hilge NOVALOBE range has thus been designed for a differential pressure of up to 16 bar.

Unique Rotor Mounting Design

Precision-ground cylinders for the location and accurate connection of rotors and shafts minimize play and reduce vibrations as well as noise.

Flexible Rotor Profiles

The rotor housing can be equipped with various rotor profiles. This makes it possible to adapt the GEA Hilge NOVALOBE pump to specific applications for an optimum performance in different conditions.

Shaft Seals

To accommodate different applications and media, GEA Hilge NOVALOBE pumps are available with different seal types:

  • Single mechanical seal
  • Single-flush mechanical seal
  • Double mechanical seal
  • O-ring seal

The mechanical seals are single inboard seals placed in the optimum position in the pump to ensure outstanding lubrication and cooling. They also comply with the hygienic design criteria in CIP and SIP processes.

Seal face materials are carefully selected to suit the specific media. Standard materials are carbon/silicon carbide with EPDM elastomers (FDA-compliant).


  • Threads to DIN 11851 (standard)
  • Flanges to DIN EN 1092-1 / DIN 2642 PN 16
  • Sterile threads to DIN 11864-1 / DIN 11853-1
  • Sterile flanges to DIN 11864-2 / DIN 11853-2
  • Other connections available upon request. This includes SMS, RJT, clamp connections to DIN, ISO, Tri-Clamp etc., and special sterile threads and flanges
  • Rectangular inlet for improved inlet conditions

GEA Hilge NOVALOBE Variants

  • With bare shafts
  • With geared motor and coupling mounted on stainless steel base frame
  • With stainless steel motor shroud
  • Mounted on trolley
  • With horizontal or vertical ports

A Variety of Applications

The GEA Hilge NOVALOBE pumps offer extremely reliable operation and gentle product handling. The hygienic design and use of pore-free materials make the pumps suitable for a variety of applications, such as:

Food & Beverage

  • Dairy
  • Food processing plants
  • Soft drink applications
  • Confectionary and sugar
  • Meat industry
  • Brewery

Pharmaceutical, Biotechnology and Personal Care

  • Fermentation processes
  • Vaccine
  • Blood products
  • Enzyme production
  • Cosmetics
  • Personal care

Other Industrial Applications

  • Paper
  • Textile
  • Chemical


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Additional options

Pressure Relief Valve

Positive displacement rotary lobe pumps will continue to build up pressure when operating against a closed valve. With this in mind, it is very important to add in a safety device to prevent accidental over-pressurization and subsequent damage to the pump or system. GEA Hilge NOVALOBE pumps can be equipped with an integrated pressure relief valve to avoid these damages.

Thermal Jackets

Thermal jackets are available for all pump sizes. This option makes it possible to heat the pump chamber and to ensure that products which solidify at ambient temperature are kept liquid. Alternatively, the thermal jackets can be used to cool the pumped media where necessary. Thermal jackets for GEA Hilge NOVALOBE are available for the rotor case and the front cover. Due to the integrated design in the pump, it is a highly efficient system without any compromise in the hygienic design and cleanability.

Aseptic Front Cover

Combining the benefits of a circulating barrier fluid and double mechanical seals, the aseptic front cover and the double mechanical seal greatly increase safety – ideal where high containment requirements apply.


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Program overview

Pump model NOVALOBE 10/0.06 NOVALOBE 20/0.12 NOVALOBE 30/0.33 NOVALOBE 40/0.65 NOVALOBE 50/1.29 NOVALOBE 60/2.1¹



0.06 0.12 0.33 0.65 1.29 2.1


pressure (bar)

16 16 16 16 16 16
Max. speed (rpm) 1,500 1,500 1,250 1,000 800 650

Max. liquid


up to 95 °C, 150 °C (SIP) up to 95 °C, 150 °C (SIP) up to 95 °C, 150 °C (SIP) up to 95 °C, 150 °C (SIP) up to 95 °C, 150 °C (SIP) up to 95 °C, 150 °C (SIP)
Rotor design uni-wing bi-wing multilobe uni-wing bi-wing multilobe uni-wing bi-wing multilobe uni-wing bi-wing multilobe uni-wing bi-wing multilobe uni-wing bi-wing multilobe


roughness Ra (μm)

≤ 0.8 / ≤ 0.4² ≤ 0.8 / ≤ 0.4² ≤ 0.8 / ≤ 0.4² ≤ 0.8 / ≤ 0.4² ≤ 0.8 / ≤ 0.4² ≤ 0.8 / ≤ 0.4²
Connection size (mm) 25 40 50 65 80 100

Max. particle size (mm)


12 16 23 29 35 41
Max. viscosity (mPas) 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000

¹ available summer 2017
² optional


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Dear partners,

We would like to inform you that in the framework of preventive measures aimed at effectively addressing the spread of “Covid19” disease and in accordance with the National Public Health Organization guidelines (, our company is committed to ensure public health, safety of its partners and employees. Therefore we have recommended the fulfillment of our employees' tasks through teleworking.

The duration of this measure is initially set from 17.03.2020 to 30.04.2020

The design provides full operation, but due to special conditions, delays in specific tasks or communication may occur.

Our company will strive to keep its operation uninterrupted and secure by serving its clientele in ways and timeframes that are judged possible.

We thank you for understanding and we remain at your disposal.

Αγαπητοί Συνεργάτες,

Θα θέλαμε να σας ενημερώσουμε ότι στο πλαίσιο μέτρων πρόληψης με σκοπό την αποτελεσματική αντιμετώπιση εξάπλωσης του κορωνοιού και σύμφωνα με τις οδηγίες υγιεινής & ασφάλειας που έχει ορίσει ο ΕΟΔΥ (, η εταιρία μας για να διασφαλίσει τη δημόσια υγεία, την ασφάλεια των συνεργατών και των εργαζομένων της, συστήσαμε την εκπλήρωση των καθηκόντων των εργαζομένων μας, μέσω τηλεργασίας.

Η διάρκεια του συγκεκριμένου μέτρου ορίζεται αρχικά από τις 17.03.2020 έως τις 30.04.2020

Ο σχεδιασμός προβλέπει πλήρη λειτουργία, ωστόσο εξαιτίας των ειδικών συνθηκών, ενδέχεται να παρουσιαστούν καθυστερήσεις σε συγκεκριμένες εργασίες ή και στην επικοινωνία.

Η εταιρία μας θα προσπαθήσει να διατηρήσει αδιάληπτη και ασφαλή την λειτουργία της, εξυπηρετώντας το πελατολόγιο της με τρόπους και σε χρονικά πλαίσια που κρίνονται δυνατά.

Σας ευχαριστούμε για την κατανόηση και παραμένουμε στην διάθεση σας.