Adhesive specialist switches from progressive cavity pumps to peristaltic pumps

Watson Marlow 05/05/2014

60 1 minute read

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Incessant wear, clogging and seal changes that resulted in high periods of downtime have seen Poland-based adhesive manufacturer Zaklad Chemiczny Pawel Paprocki switch from the use of progressive cavity pumps in its production processes, to peristaltic hose pumps from Bredel.

Screw pump frustration

Zaklad Chemiczny Pawel Paprocki is one of the largest manufacturers of adhesives and raw materials for the production of glue and paint in Poland. The company produces more than 30,000 tons of raw material every year.

The company uses pumps for metering products, such as Caviol® or Winakar® PW-50, with viscosities varying from a few to tens of thousands millipascal-seconds (mPas).

However, chemical compatibility between the constituent parts of the adhesive were causing the company’s pumps to wear, resulting in clogging and production downtime. Additionally the frequency of seal changes became problematic.

As a result, the decision was taken to change the progressive cavity pumps to Bredel 80 peristaltic hose pumps due to their significantly lower maintenance and spares costs.

These seal-less, valve-less hose pumps offer highly accurate, reliable, low maintenance metering, dosing and transfer capability – right across the full range of viscosities.

The inherent design of Bredel hose pumps means there are no intrusions in the flow path, eliminating any risk of blockages. The pumped substance only contacts the reinforced, chemical-resistant hose, making them particularly suitable for handling problematic fluids such as those with a high viscosity and fluids containing abrasives or with high solids content, for example.

Rigorous trials

Before purchasing the pumps, immersion tests were performed with the Bredel hose. The tests lasted 168 hours, and confirmed that the hose materials were resistant to the chemicals found in the fluids which Zaklady Chemiczne Pawel Paprocki intended to meter.

Next, Watson-Marlow provided a Bredel 80 pump for on-site trials, to check flow rates, pipe runs and pressures in the process. The trial led to the purchase of three Bredel 80 models.

“If we are confident that a pump will perform in a specific application we often agree to on-site trials by the client since it is the best proof of quality and performance,” concludes Rafal Lydzinski, Sales Manager at Watson-Marlow in Poland.

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Watson-Marlow Fluid Technology Solutions

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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.

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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

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