Chemical Plant Enjoys Large Gains In Hose Life Following Switch To Bredel Pumps
Key points
Watson-Marlow Fluid Technology Group (WMFTG) reports that a leading European company pumping PCC (precipitated calcium carbonate), has benefited from much-extended production uptime thanks to switching to Bredel pumps and abrasive resistant hoses.
PCC has the same chemical formula as other types of calcium carbonate, such as limestone, marble and chalk: CaCO3. The substance is manufactured in the form of nanoparticles and used for products such as PVC, paints and cigarette papers.
The waste from PCC production can be recycled, which is where optimised pump technologies can make a real operational difference.
Repeat failures
The company began experiencing issues with its PCC recycling operations within months of the installation of their previous transfer pumps. Repairs at a cost of €1500 were needed, together with long periods of downtime.
With frustration levels rising, the company turned to WMFTG, and its renowned Bredel hose pumps and the well-documented benefits they bring in abrasive duties.
The expert team of Bredel engineers therefore worked closely with the PPC manufacturer to ensure the pumps (and hoses) were optimised with regard to both reliability and output.
Bredel pump provides solution
The first Bredel 65 (65mm hose diameter) was installed at the company’s plant with a high level of support, to ensure the correct pipe runs, suction and discharge pressure.
Suction is 9m long and 3m high, while discharge takes place at the same height over a length of 30m, with a pressure of between 2 and 7 bar.
The PCC waste contains sand and water, producing a slurry of between 100 to 1000 cPs viscosity (10-70% dry content is pumped to an oven). All the Bredel 65 pumps now installed at this site feature 3kW motors and run at 17 rpm over a 24/7 duty cycle. Flow rates range from 6 to 10 m3/h.
In terms of hose life, the first Bredel 65mm diameter standard natural rubber hose lasted for 3,360,000 occlusions, or around 83 days (2000 hours). Bredel engineers were present when the hoses were changed to ensure customer confidence and pump reliability.
Further hose life improvements were then sought by checking pump speed, heat, back pressure and product dilution. As a result, hose life increased to 4,468,800 occlusions, which is equivalent to 110 days or 2660 hours, a 32% improvement.
At this point, the company was encouraged to participate in the new Bredel NR Endurance hose trials. Running under the same conditions, the NR Endurance hose lasted 7,056,000 occlusions, approximately 175 days or 4200 hours, a further 57% gain.
Hoses such as Bredel’s NR Endurance material are constructed from high-quality compounded rubbers, reinforced with individual layers of braided nylon.
The inner and outer layers of the hose are extruded and importantly, after construction, every hose is machined over the entire length, to ensure critical tolerances are maintained.
The hose element is critical to ensure Bredel peristaltic hose pump performance, durability and efficiency. Careful hose material selection, combined with correct pump installation, means that pump users benefit from much less downtime, less cleaning and reduced spares inventory.
Huge rewards
This European manufacturer’s decision to replace its previous pumps has proved hugely rewarding. In the first instance, downtime has been reduced from 24 hours to just 2 hours, providing a return on investment within a 12-month period.
In the five years that Bredel hose pumps have been installed, the company has saved around €100,000 TCO (total cost of ownership) in this rugged and abrasive pumping application.
Watson-Marlow Fluid Technology Solutions
- 01326370370
- info@wmftg.co.uk
- https://www.wmfts.com/
- Bicklandwater Road, Falmouth Business Park, Falmouth, Cornwall, TR11 4RU GB
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
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