Chem-Sure enables new peristaltic pumping solution for AEI Cables

AEI Cables, a leading manufacturer of fire resistant cables, has been one of the first companies to benefit from the introduction of the new CHEM-SURE tubing from Watson-Marlow Bredel.

John Cobley, development engineer at AEI comments: "AEI has developed a novel process in the manufacture of cables, that requires the high-pressure, low-dose metering of an aggressive fluid, with a constant flow rate. The previous engineering solution had used gear pumps to achieve the flow rate and pressure required, but this involved a high level of maintenance as well as a complicated pressure regulation system utilising bypass valves.

"Because of the introduction of CHEM-SURE we have now been able to move to a much simpler and far more reliable peristaltic solution."

CHEM-SURE is not only resistant to an extensive range of aggressive chemicals, it is also able to handle the required pressure with an excellent pumping life. This comes from the unique structure of the tube which is reinforced with numerous layers of expanded PTFE.

John Cobbley of AEI adds: "Before the installation of the new Watson-Marlow Bredel 500 series pumps, costs were somewhat unpredictable, but we had to allow at least £1,700 per year/per pump for maintenance. We also had to allow for labour spent regularly adjusting flow rates. With the new pumps, we are finding that maintenance costs are far more predictable and much lower - as much as 70% less. We have also found that the new solution gives exceptionally stable flow rates, freeing up engineers' time to be spent elsewhere."