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Historic Papermill Switches to Qdos Pumps for Metering of Pigment and Starch
Fluids Handling

Historic Papermill Switches to Qdos Pumps for Metering of Pigment and Starch

Photo of Watson Marlow Watson Marlow Send an email 23/11/2017
393 2 minutes read
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  • Improved pump reliability at niche-market paper mill
  • Enhanced metering accuracy delivers product confidence
  • Low pulsation design gives a much more stable flow


St Cuthberts Mill, a master papermaker with a heritage that can be traced back to the 1700s, has switched to Qdos pump technology from Watson-Marlow Fluid Technology Group (WMFTG) for metering substances such as pigment and starch.

Since installation, the Qdos pumps have run with complete reliability, boosted precision considerably and saved thousands of pounds due to precise shade and chemical addition control and a reduction in downtime, associated with a previously deployed pump.

Based near Wells in Somerset, St Cuthberts Mill specialises in the manufacture of high-quality artists’ papers. The company makes approximately 80 tons of paper every month using a continental shift pattern across 24/7 operations. The secret of the company’s success lies in the performance of its papers, which can be used for watercolour, printmaking or inkjet use.

“Reliability is the key to our output,” states the company’s Shift Manager Paul Tremlett. As a result, we need pumps that perform reliably, day-in, day-out.”

Until recently, St Cuthberts used a series of older peristaltic pumps, some of which were installed 20 years ago. “We wanted to move into the 21st century, and knew that the Qdos pumps could offer us a number of key advantages,” says Mr Tremlett. “For instance, the pumps can be linked to the machine’s control system, so we can change speed accordingly.

Application challenge

The company currently has two Qdos 120 pumps and two Qdos 30 models for metering of pigments and starch, with two more QDos 30 pumps on order.

What’s more, all papers produced by St Cuthberts are internally sized to increase strength. This process involves the addition of a special chemical – also pumped using Qdos technology – to make the sheet stronger and eliminate any possibility of blotting effects

Qdos pumps are self-priming and reversible, so fluids can be returned to source at the end of a shift. Their design inherently reduces maintenance as operators can quickly and safely replace one component, the ReNu pumphead, without the need for tools or special skills.

Cleaning times are also minimised – thus delivering further efficiencies to the St Cuthbert’s team. Crucially, from a health and safety perspective integral leak detection reduces wastage and eliminates mill operator exposure to chemicals.

“The machine crew here loves the Qdos pumps as they are so reliable; we’ve not had a single glitch even when handling the abrasive starch. The pumps offer high accuracy metering, which helps maximise trust in the product,” states Paul Tremlett.

Flow rates from 0.1 to 2000ml/min at up to 7 bar can be achieved using Qdos pumps. Importantly, simple drop-in installation eliminates the need for ancillary equipment which often brings with it further maintenance challenges and costs.

www.wmftg.com

Watson Marlow
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Watson-Marlow Fluid Technology Solutions

About us

Watson-Marlow Fluid Technology Group (WMFTG) peristaltic tube and hose pumps meet requirements including: value for money; low cost of ownership; reliability and ease of maintenance to the food and beverage, chemical, pharmaceutical, mining and many other industries.

We demonstrate how pumps deliver significant process efficiencies over the lifetime of the equipment. Whether performing flavouring addition in food processing, chemical metering in water treatment or mineral recovery, we have a solution which can cut pump downtime and reduce costs through higher accuracy metering and transfer. WMFTG has dedicated application engineers available to help customers make the right pump and tubing choice from a range providing microlitres per minute to 80 cubic metres per hour flow rates.

The only part of the pump to come into contact with the product is the tube or hose. This means there are no seals or valves that can wear or fail. Replacing the tube or hose can be performed quickly and safely. Peristaltic pump benefits include:

Total fluid containment with no seals No ancillaries Handle viscous and abrasive slurries and sludge Self-priming capability Dry running without damage to the pump In addition to their range of positive displacement pumps, Watson-Marlow Fluid Technology Group has added PTFE-lined chemical and industrial hoses to their range. Aflex hoses are reinforced to withstand the most severe conditions and use.

Where we supply to

Europe, Africa, Asia, Australia, South America, North America

Industries we supply to

Automation, Chemicals, Consultants, Components Electronics, Energy and Power, Food and Beverage, Glass Ceramics Cement, Metals and Minerals, OEM, Paper and Pulp, Pharmaceutical Cosmetics Toiletries, Plastics and Rubber, Recycling, Textiles, Tobacco, Water and Wastewater

  • Flexicon PF7 tabletop peristaltic liquid filling machine

  • Sterile ReNu SU Technology cartridge

  • Quantum and ReNu SU Technology cartridge - Make sterile connections in non-sterile environments

Photo of Watson Marlow Watson Marlow Send an email 23/11/2017
393 2 minutes read
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