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ARBO thermoplastic mechanically sealed centrifugal pumps made from either polypropylene, polyethylene, PVDF and PTFE are available in the UK from Michael Smith Engineers.

ARBO thermoplastic mechanically sealed centrifugal pumps

These are a suitable choice for chemical handling or any similar fluid-handling applications involve aggressive or corrosive fluids, thermoplastic pumps, as opposed to metallic options. 

ARBO pumps are machined from solid block and a manufacturing process that involves no injection moulding or welding that eliminates the potential for stress-cracking and so ensures robust, reliable, corrosion resistant pumping. They are available in three configurations including the SealPro closed-coupled design, which handles flows up to 50m³/hr, heads to 45m and maximum suction pressures up to 1.5 Bar with standard seal.

The pumps are suitable for safe and efficient transfer and circulation duty of corrosives, including liquids containing solids and also viscous liquids up to 200cP. The pumps incorporate a single internally flushed rotating seal made from PTFE-graphite or silicon carbide, which is mounted on the impeller so there are no wetted metallic seal components. Also, as none of the seal components touch either the sleeved pump shaft or the pump housing, this means the only wearing parts are the seal faces.

An innovative internal circulation system ensures that the seal rings are always within the liquid zone and continuously flushed with the medium being pumped. This provides sufficient cooling and cleaning of the liquid surface at all times and optimises pumping efficiency. Typical applications for ARBO thermoplastic mechanically sealed centrifugal pumps include pumping acids in anodising plants, circulating aggressive chemicals in pickling lines, tanker unloading of ferric salts in the water industry, pumping chemicals and untreated effluent in electronics manufacturing .

Other situations where these pumps will be appreciated include: circulating demineralised water in food industry applications; handling coolant circulation in power plants; sea water circulation in aquaria; and any application where metallic pumps will either suffer from corrosion or can cause contamination.  

Michael Smith Engineers

Michael Smith Engineers Ltd,  the UK’s leading pump specialist for difficult liquid handling applications since 1971,  provide representation in the UK for specialist pump manufacturers, with particular emphasis on sealless leak free pump technology.  Our product range includes magnetically driven gear pumps, magnetically driven centrifugal pumps (including metal, plastic and lined centrifugals),  canned motor centrifugal pumps, peristaltic pumps, tubular diaphragm pumps, metering pumps, valveless piston pumps, turbine  pumps,  high pressure diaphragm pumps, vane pumps and barrel emptying pumps. We can supply pumps in a wide choice of wetted materials for liquids between 0.2 cP and 500,000 cP, temperatures between -50 oC and +400 oC,  capacities from nanolitres per hour to m3  per minute and can offer pumps for  high system pressures up to 350 Bar and high discharge pressures up to 500 Bar.  Corrosion resistant materials are available for many of our ranges include metallic options of stainless steel and high nickel alloys or plastic options of PVC,  polypropylene, PVDF and ETFE. The main markets we service with our ranges of pumps are the chemical, petrochemical, pharmaceutical and process sector with our larger pumps  as well as laboratories, research and development institutions and OEMs with our smaller pumps.  

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