TechArchive

Original article date: May 1999

Best known for its manufacture of magnetically coupled plastic pumps Totton Pumps has now entered into an agreement with Fluid Metering a company based in New York to produce an accurate metering pump for the European market.

AF piston pumps operate with only one moving part. The patented design utilises a single dimensionally stable and chemically inert ceramic piston in a ceramic or carbon cylinder. The pumps are infinitely adjustable from zero to maximum flow at rest or during operation. They can replace peristaltic and diaphragm pumps where absolute precision dosing over long periods is important. They are particularly useful when used with expensive wash and treatment chemicals.

The design eliminates diaphragms check valves peristaltic tubing and packings virtually eliminating downtime due to pump failure and/or routine maintenance. The valve-less pumping function is achieved by synchronous rotation and reciprocation of the ceramic piston in the precision mated ceramic liner. One complete piston revolution is required for each suction/discharge cycle (as shown). The piston always bottoms for maximum fluid and bubble clearance. Virtually maintenance-free accuracy and reliability is assured over millions of strokes. The new AF range carries BEAB EN 60335-2-4 approval.

Materials to suit hygienic or chemical applications

• Totton Pumps
• Tel: 01703 666685

May 1999