Watson Marlow - Qdos® Conveying Wave Technology™
Qdos CWT is the next level in high performance for our industry leading Qdos range of chemical metering pumps. Conveying Wave Technology™ (CWT) delivers all the benefits of a peristaltic pump, but with significantly longer service life than traditional tube designs.
Qdos CWT gives superior accuracy in chemical metering and dosing applications while eliminating expensive ancillary equipment.
The sealed pumphead minimises operator exposure to chemicals, and can be safely changed in less than a minute
Flow rates to 500 ml/min at up to 9 bar
Long service life at high pressure
Reliable, low-maintenance metering
Advancing our industry leading Qdos series
Qdos CWT is built on established Qdos drive technology. The Qdos series has a wide range of communication and connection options. Operator and environmental safety is assured through:
Sealed pumphead for chemical containment
Leak detection software
Failure alarm capabilities
Qdos CWT pumps provide outstanding chemical dosing accuracy in sustainable water treatment applications.
Pumps do not suffer vapour locking and consistently dose chemicals including sodium hypochlorite, without the need to overdose to ensure reliable treatment.
The pumps are unaffected by ambient temperature variations and will provide long service life, lowering the cost of ownership.
Conveying Wave Technology employs the peristaltic principle to operate a unique fluid contact element.
To achieve the peristaltic pumping action, the pump incorporates an EPDM element rather than a tube, which acts against a PEEK track. As a result the fluid contact elements is subjected to very low stress levels.
In use, this means a Qdos® CWT™ pump will deliver significantly longer service life than a traditional pump.
CWT with its unique fluid contact element has the following benefits:
No gas locking
Stable performance, even with temperature and pressure fluctuations
Mechanical restitution provides consistently high accuracy for the life of the pump
