Watson-Marlow Qdos 20 Chemical Metering Pumps

Accurate, versatile chemical metering pumps

Delivering flow rates that remain constant right up to 100 psi Qdos peristaltic chemical metering pumps give users a unique advantage over diaphragm metering pumps.

Qdos pumps offer long maintenance intervals, reducing the impact of process downtime and lowering the overall cost of ownership.

Cut chemical cost through higher accuracy meteringSimple drop-in installation eliminates ancillary equipmentReduced maintenance with single, no-tools, component replacementFlow rates from 0.001 to 31.7 USGPH at up to 100psiCost of ownership is less than that of a diaphragm pump

Eliminate ancillary equipment

A diaphragm metering pump often requires a range of high maintenance ancillary items to function.

The Qdos pump eliminates ancillary equipment while ensuring accurate, linear and repeatable metering across all process conditions.

No backpressure valvesNo pulsation dampenerNo degassing valvesNo foot valves and strainersNo float switches

Total cost of ownership is less than a diaphragm pump

Typical installation comparing a diaphragm metering pump with the Qdos peristaltic metering pump

*Not required for Qdos system

ReNu pumphead technology

ReNu peristaltic 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.
Process uptime is maximised by facilitating quick, safe and easy pumphead removal and replacement, with no need for tools, no specialist training and no maintenance
technicians. The contained pumphead design with integral leak detection reduces wastage and eliminates operator exposure to chemicals.