Product Description

The Wangen Type GL-F Pump

The Wangen Type GL-F Pump can address your needs for conveying substrate or loading the separators in the rigorous operation of your biogas plant.

The WANGEN processing cavity pump of type GL-F is compactly built. It can be used to achieve high conveyance volumes and counter pressures. Attached to tank trailers, slurry tankers and umbilical hose systems, it is equally suited for mediums with different properties, such as fluid or slow-moving, mash-like, or loaded with solids.


Conveying Substrate

Pumps in biogas plants have to convey viscous substrate between the fermenters. We offer different types of pumps according to the substrate to be conveyed and the biogas plant in question. Our years-long experience enables us to develop practice-related solution concepts.

WANGEN pumps have robust designs because substrates are often highly viscous and have to be pumped over long distances. Supplemented with dry running protection, pressure gauges or flow meters, they display excellent performance even in automatic continuous duty.


Loading the Separators

WANGEN pumps perform special tasks in biogas plants such as loading the separators for separating solid and liquid phases.
Conveying the substrates with their mostly high dry substance contents (DS) requires sophisticated pump technology. Optimum pumping results are guaranteed by the flow-optimized suction housing and a constant joint diameter which prevents the plating of long fibers.

Wangen Type GL-F

Specifications of the Wangen Type GL-F

Performance Data

  • Flowrate: up to 7500 l/min.
  • Maximum differential pressure: up to 8 bar
  • Dry Substance Content: 15%

Benefits & Characteristics

  • No tangling of fibers around the joint or joint connections
  • Optionally with stone catcher
  • Pump delivery over long distances and large differences in height
  • Low Life Cycle Costs
  • High operational reliability
  • High priming capacity
  • Long service life
  • Rigorous modular principle for high flexibility, low stocking of spare parts, short downtimes for maintenance and repairs
  • Low servicing costs
  • Low-pulsation, continuous conveyance independent of pressure and viscosity
  • Smooth running thanks to hollow rotors
  • Insensitive to foreign matter
  • Maintenance-friendly
  • Easy fitting to slurry tankers or trolleys
  • Compact construction based on modular principle for high flexibility
  • High suction lift (self-priming)
  • High-pressure performance
  • Almost pulsation-free conveyance
  • Good pumping performance even with abrasive and fibrous materials in the media

Fields of Application

  • For use as feeding, unloading and recirculation pump
  • umbilical systems
  • irrigating
  • distributing
  • filling
  • suction

Suitable for the Following Media

  • fertilizer
  • liquid manure from chicken
  • cattle slurry
  • liquid manure
  • fermenting substrates


  • Stator with S-cone inlet for optimum filling of the pumping chamber
  • Various geometries and pump sizes
  • Shaft seal (mechanical face seal with oil quench)
  • Reinforced cardan joint
  • Discharge flange DN 150 (round flange)
  • Three suction connections in DN 150 / DN 200 (square flange)
  • Suction housing with large inspection and cleaning openings
  • Maintenance-free mechanical seal independent of the sense of rotation
  • Hollow rotors for smooth running
  • Driven by PTO or drive shaft with feather key
  • Double bearing arrangement with tapered roller bearings
  • Robust bearing pedestal for high force transduction

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