Peristaltic pumps solve problems for chlorine monitors 04 May 2012

US water quality monitoring systems manufacturer Analytical Technology is using peristaltic pumps from Watson-Marlow following problems with similar pumps on its chlorine monitoring equipment.

Typically, ATI's UK subsidiary, based near Oldham, imports monitors directly from its US manufacturing headquarters. However, for one recent high profile application, the company was faced with a dilemma.

"Around two and half years ago, the demand for our chlorine monitors grew as Yorkshire Water instigated a drive away from the 24V dc pumps it used conventionally, opting in favour of fixed speed 110V ac models on the basis of cost and reliability," explains ATI technical manager Chris McTear.

"Our Q45H/79 total chlorine monitor was the perfect fit in all ways except one – the physical footprint was too large. For this particular application we had to redesign the enclosure and select a smaller pump – the 313FAC/D2 – to ensure it could physically fit inside the available space.

"As a result we now buy pumps for this monitor directly from Watson-Marlow in the UK."

Yorkshire Water is now replacing all its chlorine monitors with those supplied by ATI. At current count, around 400 have already been replaced, while Thames Water, United Utilities and Severn Trent have also been increasing uptake of this technology.

"We originally switched to Watson-Marlow as we found their pumps were cheaper to operate and more reliable," comments Chris McTear.

"We had tried other pumps but it was obvious that peristaltic represented the way forward – even more so with the recent upswing in demand from water companies," he continues.

"Ultimately, the corporate attitude of ATI is to make high quality monitors at a competitive price, which are easy and cheap to maintain, and simple to use. This ethos fits with the Watson-Marlow peristaltic pumps and we will continue this strategy."

Brian Tinham

Related Companies
Watson Marlow Pumps Group

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