Qdos pumps - accurate, versatile chemical pumps for process optimisation

Qdos peristaltic chemical metering and dosing pumps

  1. qdos h-flo santoprene

    Qdos H-FLO

    Learn more about the latest Qdos pump designed specifically for flow rates up to 600 L/hr.

  2. qdos in onsite wastewater treatment

    Optimising chemical dosing

    Discover six factors to consider in chemical dosing to achieve the best performance in onsite wastewater treatment.

Dosing pumps ensure accuracy and containment in chemical metering

The Qdos range of peristaltic chemical metering and dosing pumps cut costs through higher precision metering, with an accuracy of ±1% and repeatability of ±0.5% in dosing.

Qdos metering and dosing pumps minimise chemical consumption for applications in water and wastewater treatment, industrial process fluids, industrial effluent, mining and mineral processing, and for chemical applications in food and beverage.

Industry leading ReNu and CWT pumphead technology is at the core of the Qdos pump. This ensures the delivery of accurate and repeatable flow for fluids of wide ranging viscosities.

ReNu and CWT pumpheads provide accurate, linear and repeatable low pulse flow under varying process conditions.

Diaphragm metering pumps require high maintenance ancillaries to function. Qdos peristaltic chemical metering and dosing pumps eliminate this equipment while maintaining accurate, linear and repeatable metering for all process conditions.

Qdos metering and dosing pumps have a wide range of communication and connection options (PROFIBUS, EtherNet/IP™ and PROFINET).

There are six pumps in the Qdos range—20, 30, 60, 120, CWT and H-FLO—to meet your chemical metering and dosing requirements.


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Common applications

  • Disinfectants
  • Coagulants
  • Flocculants
  • Acids/alkalis
  • Mining reagents
  • Surfactants

Qdos features and benefits

  • Cuts chemical cost through higher accuracy metering (±1%)
  • Simple drop-in installation eliminates ancillary equipment
  • Simple maintenance with single, no-tools, component replacement
  • Valveless design of pump reduces the possibility of pump blockages from fluids such as ferric chloride
  • Ability to run dry (and can also handle gaseous fluids such as sodium hypochlorite)
  • Suction lift of up to 9 m means the Qdos range is ideal for sampling applications
  • No backpressure valves, pulsation dampener, degassing valves, foot valves, strainers or float switches


Learn more about Qdos

Model Flow rate (mL/min) Pressure* Fluid contact material
Qdos 20 0.1 - 333 7 bar SEBS or PU
Qdos 30 0.1 - 500  7 bar Santoprene or SEBS
Qdos CWT 0.1 - 500  7 bar EPDM
Qdos 60 0.1 - 1000  7 bar Santoprene, SEBS or PU
Qdos 120 0.1 – 2,000 4 bar Santoprene
Qdos H-FLO 2 – 10,000 7 bar Santoprene or SEBS
*pressure capability is dependent on chosen pumphead

Qdos H-FLO features and benefits

Qdos H-FLO

Introducing our latest pump to the range, Qdos H-FLO is designed specifically for higher flow rates up to 600 L/hr.

Benefits include:

  • Offering flowrates up to 600 L/h and pressure capability up to 7 bar
  • Patented RFID detected feature ensures correct pumphead is fitted, providing process security and improves safety
  • Revolution counter for pumphead service maintenance
  • Leak detection and fluid containment prevent spills and chemical exposure upon pumphead expiry
  • Network integration, control and communication options include EtherNet/IP,  PROFINET and PROFIBUS for easy integration with SCADA / PLC
  • One common pump drive with several pumphead options for changing process conditions and chemistries


Learn more about Qdos H-FLO

qdos hiflo

Qdos accessories

Qdos Hose Connector Kits

Flexible and robust hoses designed for simple, safer and secure connection of a Qdos pump into an existing process line. 

Benefits include:

  • Supplied ready to connect to a Qdos pump and process line for simple and safer installation
  • Highly flexible and robust
  • Fully crimped and hydrostatically pressure tested solution
  • Chemically compatible for use with aggressive and corrosive acids and alkalis
  • Handles ambient temperature fluctuation

*Not currently available with Qdos H‑FLO


Learn more about Qdos Hose Connector Kits

Featured case study

Qdos 60 PU peristaltic pump doses polymer for three years without leaks or downtime

A Qdos 60 PU peristaltic pump completed three years of maintenance-free operation in May 2023 without any messy leaks of polymer in a trial at the City of Oak Ridge water treatment plant in Tennessee, United States.

The prototype Qdos 60 PU peristaltic pump with ReNu PU pumphead is dosing polyaluminium chloride at Oak Ridge. The Qdos 60 PU pumphead has provided efficient, safe, leak-fee and reliable polymer metering.


Read more

qdos oakridge

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Please note we assume that the information you submit will be your business information and not your personal information. View our privacy policy for more information.


  1. Case Study

    Case Study