Dairy effluent pumps



Wangen has been developing and manufacturing progressing cavity pumps for various agricultural applications since it was founded in 1969. The experience gained since this time has had a huge impact on the quality of their products and the KL-S series of self priming progressive cavity pumps are no different! Wangen pumps have a long service life, and are characterised by their rugged design. One customer in Austria went 35 years without having to pull his pump apart or replace parts!

The ideal pump for effluent obviously depends on the customer's needs. We have selected a range of the most common models but there are many more. Send through the details of your application and we will spec a pumpset for you.

Product Information

Overview KL Series Overview KL series design

Wagen pumps for the agriculture sector come in several different types:

KL Series:

These are the most commonly used in New Zealand, and have quickly earn't a solid reputation for their smooth running and quietness.  Running at lower speeds means that wear is kept very low and therefore cost of ownership is also kept very low!


These pumps are the latest innovation from Wangen.  The range has been specifically designed for ease of maintenance and to reduce downtime and costs.

PTO Pumps:

This range can be driven via PTO, as well as via electric, hydraulic or diesel motor.

Overview KL Series Overview KL series design

Standard self priming pumps: KL-S series

For pumping flowable thin sludge, excess sludge, and mechanically thickened sludge up to 10%. Stator with funnel-shaped entrance for optimal filling of the pumping chamber. Flow rate up to 560 m3/h, differential pressure up to 48 bar.

Benefits & Characteristics

  • Excellent price/performance ratio
  • Low Life Cycle Costs
  • Large viscosity range
  • Good pumping performance even against high pressure
  • High operational reliability
  • Consistant diameters at joint connections for constant flow rates
  • Rigorous modular principle for high flexibility, short downtimes for maintenance and repairs
  • Almost pulsation-free conveyance
  • Optimum service life even with difficult media
  • Insensitive to foreign matter
  • Good pumping performance even with abrasive and fibrous materials in the media
  • High suction lift (self-priming)
  • Constant flow speed in the suction housing prevents desposits or sedimentation
  • Low-pulsation, continuous conveyance independent of pressure and viscosity
  • Easy to maintain thanks to large cleaning openings


ModelPower (kW)Speed (RPM)Max Flow (m³/hr)Max Pressure (Bar)
KL 161007.51522010
KL 18907.5155239
KL 22100111782810
KL 25100112133110
KL 338011246398
KL 30110152213911
KL 4210018.52216110
Overview KL Series Overview KL series design

Design characteristics of the KL-S series

Wangen pumps are consistently designed and built to deliver performance and reliability.

Wangen KL S Cut away

Wangen Bearing Bracket

Bearing Bracket

Bearing bracked with self-centering and
direct coupling of the drive. Prevents
gear damage. Suited for highly abrasive,
adhesive or lumpy media.

Wangen KL S Bearings

Double Bearings

Double support bearings for greater
reliability and support.

Wangen Cartridge Mech Seal

Cartridge Seal

Mechanical seal in cartridge format.
Quick and easy to replace - minimise
downtime for maintenance.

Wangen Cardan joint 200

Cardan Joint With Sleeve

Cardan joint with protective sleeve to
protect against media getting caught
in the joint and blocking the pump.
Life lubricated needle roller bearings.
Wear and maintenance free.

Wangen Rotor


Top quality, robust rotor manufactured
in house and available in a range of
different geometries and materials.

Wangen Stator


Stators in a range of different
geometries, all manufactured
in house.