Displaying items by tag: watsonmarlow

Watson-Marlow Fluid Technology Solutions (WMFTS) highlights its range of Qdos chemical metering pumps for chemical processing and OEM applications. 

  • Pumps are ideal for chemical processing and OEM applications

The Qdos range features a simple drop-in installation that eliminates the ancillary equipment required by diaphragm pump alternatives while maintaining accurate, linear, and repeatable metering for all chemical processing conditions. 

Qdos peristaltic chemical metering pumps have flow rates ranging from 0.001 to 32 USGPH at up to 100 psi with +/- 1% accuracy. An intuitive menu offers advanced control features including fluid level monitoring, line priming, fluid recovery, leak detection, and flow calibration.

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Qdos pumps are available with either 110V AC or 12-24V DC. The 12-24V DC power option increases the range of Qdos applications involving remote applications where 110V AC power supply is not available. 

Qdos pumps offer long maintenance intervals, and have no valves or seals to clog, leak or corrode. Furthermore, the pumps feature no-tools maintenance with quick and easy pump head replacement, reducing the impact of process downtime and lowering the total cost of ownership.

Built for simplicity in installation, operation, and maintenance the Qdos range of pumps are adaptable to fit all chemical processing and OEM applications.

To learn more about Qdos, visit: https://www.wmfts.com/en-us/watson-marlow-pumps/cased-pumps/qdos-metering-pump/

About Watson-Marlow Fluid Technology Solutions

Watson-Marlow Fluid Technology Solutions is an award-winning, global leader in fluid management technology and for over 60 years has engineered components and systems for customers in the food processing and handling, pharmaceutical and industrial markets. The company is part of Spirax-Sarco Engineering plc, a FTSE 100 company. Learn more at www.wmfts.com

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Watson-Marlow is pleased to announce that construction began in October 2021, on a new state-of-the-art manufacturing facility in the United States, with first production due in late 2022. Following an announcement made earlier this year, the Company is pleased to provide further details about the new facility which will be dedicated to its range of industry leading products, including peristaltic pumps, tubing, fluid path solutions and BioPure components.

Part of Spirax-Sarco Engineering plc, a FTSE100 Company, Watson-Marlow specializes in high-quality fluid management solutions for the life sciences and process industries. This significant investment in the expansion of its manufacturing capacity will support the Company’s future growth in the Americas. 

Located in Devens, Massachusetts, USA, the 150,000 square foot (14,000 square metres) facility will be close to the life sciences hub in the Cambridge/Boston area. The site will incorporate a suite of eight ISO14644-1 Class 7 cleanrooms, warehousing and offices, with space for two further cleanrooms within the initial footprint. With segregated cleanroom and non-cleanroom production capabilities, Watson-Marlow’s new U.S. facility will strengthen the support the Company provides to customers in the region across its core sectors of pharmaceutical and biotechnology, medical diagnostics, and process industries. 

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“The new U.S. facility is an important milestone in the Watson-Marlow company history and marks a significant commitment to serving our customers in the Americas region.” Says Andrew Mines, Watson-Marlow Managing Director, “This exciting development is bringing us closer to our customers whose purpose is to help the world around us, from advancing cell and gene therapies through to ensuring people have access to clean drinking water. Together we will continue to develop market-leading fluid management solutions to engineer a more sustainable future. A huge thanks goes to the Watson-Marlow, BioPure, Americas and Watson-Marlow Central Support teams that are making this happen, as well as to our parent Company, Spirax-Sarco Engineering who have enabled us to make such a significant investment in our future.”

Watson-Marlow is an award-winning employer and this new facility will bring significant job opportunities to the local area, with over 150 positions coming available. Production at the new facility will replicate that of Watson-Marlow’s European sites, ensuring continued product quality for customers, by using the same raw materials, components, processes and work instructions. Completion of the facility is due in late 2022, with the first products due to be shipped from the site in late Q4.

Watson-Marlow Fluid Technology Group (WMFTG) is the world leader in peristaltic pumps and associated fluid path technologies. The Group comprises ten established brands, each with their own area of expertise. Together they provide leading engineering solutions across the food, pharmaceutical, chemical and environmental industries.

WMFTG is headquartered in the United Kingdom with international operations in 44 countries and employing over 1750 people globally.

Watson-Marlow is a wholly owned subsidiary of multi-national industrial engineering Group, Spirax-Sarco Engineering plc, a constituent of the FTSE 100, with strategically located manufacturing plants around the world and over 8,200 employees, including 1,950 direct sales and service engineers.  

As a leading engineering group, we have an ethical responsibility to manage our economic, environmental and social impacts, while helping our customers and suppliers to do the same. In August this year, WMFTG committed to achieving net zero carbon by 2030.

Further information can be found at www.wmftg.com

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Watson-Marlow Fluid Technology Group (WMFTG) announces Bredel heavy-duty hose pumps to provide high metering accuracy and excellent resistance to the viscous and abrasive chemicals commonly used in the pulp and paper industry.

Unlike diaphragm, rotary lobe, and PC pumps, the peristaltic design of Bredel hose pumps contains no moving parts that come into contact with the product, and no seals, ball-checks, diaphragms, glands, immersed rotors, stators or pistons to leak, clog, corrode or replace. Bredel hose pumps also obviate the need for ancillary equipment such as dry run protection, seal water flush systems and in-line check valves. A simple hose change takes only minutes and can be performed in-situ without special tools or skilled personnel.

2021 04 09 101413The low maintenance peristaltic design offers a low total cost of ownership. As the fluid is safely contained within the hose or tube, operation and maintenance personnel and the environment are protected from unwanted spillages or exposure to chemicals.

Bredel hose pumps are dry-running and self-priming, and allow no slippage, for true positive displacement to provide accurate and repeatable metering. Only Bredel industrial hose pumps provide this level of engineering expertise for their drives.

The pumped fluid is completely contained in a long-life hose, protecting operation and maintenance personnel and the environment from unwanted spillages or exposure to chemicals. Flow is entirely independent of suction and discharge conditions. Every Bredel hose is precision machined to ensure flow stability and pump performance in tough fluid handling applications.

These industrial pumps achieve flow rates up to 475 GPM, transferring up to 80% solids in suspension.

For more information on Bredel heavy-duty hose, visit www.wmftg.com/en-us/brands/bredel/.

WMFTG is a wholly owned subsidiary of Spirax-Sarco Engineering plc, a global organiation employing 7,900 people, of whom over 1,600 are direct sales and service engineers. Its shares have been listed on the London Stock Exchange since 1959 and it is a constituent of the FTSE 100 index. 

WMFTG is headquartered in Falmouth, UK with international operations in 34 countries. 

Watson-Marlow Limited was honoured with the Queen’s Award for Enterprise: International Trade 2017 and Innovation 2018.

Further information can be found at www.wmftg.com

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One of Europe’s largest manufacturers of toilet tissue and paper towels is now using an extensive range of peristaltic hose pumps from Watson-Marlow Fluid Technology Group in its production processes. The pumps, which include numerous APEX and Qdos models, are today performing vital dosing operations, typically on a 24 hour basis. Both the robustness and reduced maintenance requirements of Watson-Marlow pumps have proved attractive to this manufacturer, while their inherent accuracy has also seen the company reduce its chemical consumption significantly.

  • Diaphragm pumps replaced with peristaltic pumps for dosing sodium hydroxide
  • Chemical consumption reduced significantly thanks to greater pump precision
  • Maintenance is now quick and tool-free – and production downtime is minimised

The main mill at this high technology plant consists of two machines for the production of paper and eight converting machines.

The production machines comprise numerous dosing stations, where since 2011 the company has been enjoying the benefits of Watson-Marlow 521F/RC close-coupled pumps. These were selected by its Methods and Processes Project Manager, in response to a request for a reliable system that could dose enzyme at the pulp preparation stage.

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Successful trials

Trials showed that Watson-Marlow’s peristaltic pump technology was extremely robust, thus minimising any maintenance requirements – a principal factor considering the pumps would be required to run 24 hours a day. Now, the enzyme dosing station is equipped with two 521F/R2C pumps, on which the Watson-Marlow MarpreneTM tubing is very rarely changed. 521F/R2C models offer flow rates up to 250 litre/h at 2 bar peak pressure, and feature 520 LoadSure elements. Moreover, the 520REL pumphead delivers large swept volume with sprung rollers for high accuracy.

A year later the company was facing another challenge and once more turned to Watson-Marlow for the solution. In the company's offset printing production process, the transfer of sheet paper is performed using a rubber 'mat'. In short, images on metal plates are transferred (offset) to rubber blankets, or mats, and then on to the toilet tissue. Rubber is used because it readily conforms to the surface of the tissue, however, the company was finding that the mat was becoming subject to increasing levels of fouling.

To address the problem, a dosing station for sodium hydroxide was installed and Watson-Marlow was called upon once more for this application. After consultation, a Bredel APEX 20 hose pump was selected, not simply for its advantageous peristaltic operating technology, but its ability to run dry, as well as its high extraction rate. The APEX 20 is capable of delivering flow rates of 8.7-870 litre/hr and pressures up to 8 bar.

Diaphragm pumps replaced

Most recently, electromagnetic diaphragm pumps on the company's coating stations started to prove problematic.

Not only were there issues of back-pressure, which meant valves were getting blocked, engineers reported that maintenance was becoming long, complicated and dangerous.

The three diaphragm pumps at this station were replaced with three Qdos30 Universal+ chemical metering pumps for the necessary coating chemicals. The advantages of Qdos30 Universal+ pumps include the absence of valves and the fact that the chemicals remain completely confined within the ReNu pumphead, thus delivering total operator safety. Maintenance is also quick and tool-free, which means production downtime is minimised.

With flow rates up to 500 ml/min and 7 bar pressure, the Qdos30 Universal+ is enhanced by offering the flexibility for automatic and manual control together with configurable 4-20 mA input and output, thus allowing connection directly to the process controller.

Cost savings                                                              

The company has reported that it is “very happy” with the Qdos pumps as they provide complete peace of mind, safety and cost savings. Use of coating chemicals has reduced significantly.

The performance of the Qdos pumps has been so impressive, that the company has also adopted six further Qdos models on the dryer protection station serving the two paper production machines, and three coagulant dosing pumps for treating water in the company’s flotation units.

The factory is booming and a third production line is now planned, with the goal of producing 90,000 tonnes of paper per year. The plan is for the new line to be equipped Watson-Marlow dosing pumps to ensure continued dosing accuracy.


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Bredel pumps save UK paper manufacturer £2700 per pump / per year in electricity, compared with AODD pumps - Equating to an 80% reduction in energy consumption.

Today, all manufacturing and process plants see energy efficiency as a major priority on their agendas. Energy has become a board level commitment because it is driven by legislation in both the EU and the UK, and also because it’s an expensive overhead. Nearly all plants run pumps of some kind, and without the necessary energy management they can make for hefty electricity bills that can impact the bottom line and reduce competitiveness.

  • Energy efficiency and CO2 reduction is now a board level commitment
  • Correct pump selection is vital in the drive towards a greener future
  • A single Bredel pump is saving one manufacturer around £2700 a year in electricity costs compared with an AODD pump – reducing CO2 emissions by over 12,500 kg per year

Knowledge is power

According to the BPMA (British Pump Manufacturers’ Association), pumps account for around 10% of the world’s electricity consumption, while an alarming two-thirds of pumps use up to 60% more power than necessary.

Correct pump selection is therefore critical in controlling energy consumption, and not just the brand, but the correct pump technology, the size of pump and drive for the application. Only this will ensure the shortest payback times and allow plants to maximise the return of their investment. Quick ROI is also a great way to ensure board level buy-in.

Look beyond the price

When considering the acquisition of a new positive displacement pump, many engineers get seduced by a cheap purchase price. However, there are far more significant savings to be made over the lifetime of a pump if factors such as energy efficiency are more carefully considered. In fact, tests and calculations have shown that Bredel heavy duty hose pumps can save up to 80% in energy costs per pump in comparison with AODD pumps.

One recent example at a UK paper manufacturer highlights just how much can be saved by making more informed pump purchases. At a Midlands based paper and packaging company that was an established user of AODDs (air operated double diaphragm pumps), a prospective enquiry led to a very welcome boost to the bottom line by switching to Bredel hose pumps from Watson-Marlow Fluid Technology Group.

Like-for-like comparison

A direct comparison was drawn between their existing AODD pump and the Bredel 50 hose pump. At 29 rpm, the flow rate at 50 Hz is 5,000 l/hr. The AODD pump air consumption at this flow rate (at 6.9 bar pressure) is equal to 35.34 CFM.

Extrapolating the mathematics further, 35.34 CFM (based on 4 CFM per kW maximum generation) is equal to 8.83 kW. Hence, with electricity costing £0.10 per kW/hr, the cost of running the AODD pump per hour is £0.88. The duty cycle of the pumps for this client’s application is 16 hours running per day, 5 days per week, 48 weeks a year – which equates to annual running costs in electricity of £3379. In reality this figure is likely to be even higher because of the air system leakage suffered by most manufacturing sites.

Using the same parameters, the Bredel 50 draws just 1.75 kW, so the running cost per hour is £0.175. Based on identical hours of operation, the annual running cost in electricity is £672, delivering an impressive saving of £2707 per year, per pump. The company has installed three Bredel hose pumps, delivering an impressive saving of £8121 per year, thereby reducing their energy consumption by 80%.

Added to this, there is a reduction in CO2 emissions of over 12500kg per year, per pump based on the 2015 DEFRA conversion ratio of 0.46219kg of CO2 per kW hour of energy used.

Impressive savings

Factoring in the purchase price of the Bredel 50, the payback period is just 2.1 years, after which the pumps have a positive effect on the bottom line.

“For this client, the payback period was even shorter as the calculations shown do not include common issues associated with AODD pumps for this type of application - such as breakdown costs and lost production time,” says Andrew Edwards, a sector specialist at Watson-Marlow. The client also considered the reduced compressed air requirement, which resulted in less wear and tear on the compressor.

These effects were particularly common at the manufacturer in question because the product being pumped from bulk tanks to day containers is starch, which is quite abrasive and becomes even more abrasive when sheared.

Abrasives are known to wear AODD pump parts, such as expensive end caps and manifolds. Furthermore, the ball check valves of air operated double diaphragm pumps can be distorted by the wear, to the point they reach a size that they can extrude through the pump. If this occurs the result can be a contamination of the process or creating a blockage in the pipework system.

Less maintenance

Previously, the manufacturer had to maintain the AODD pumps every 2-3 weeks, and not just to replace normal wear parts like diaphragms, but high cost components. What’s more, the failures were unpredictable, causing line stoppages, process disruption and yet more costs.

In short, industrial manufacturers can become far more energy efficient and maximise process up time by switching to Bredel pumps.

Ultimately, the example described shows that switching to Bredel pump technology can improve energy efficiency and enable plants to increase profitability and remain competitive in today’s fierce marketplace. Benefits arrive not just in the shape of energy savings, reduced carbon emissions and legislative compliance, but in demonstrable greener credentials as part of a company’s corporate responsibility initiatives.


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