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Michael Smith Engineers has launched FMI rotary piston pumps, designed for simple and reliable operation and requiring minimal maintenance.

There are no valves to clog, leak or maintain and they have one moving part – the piston.

They offer drift-free operation of better than +/- 1 per cent from set point, precision dispensing of -0.5 per cent CV, deliver flows from microlitres up to 2.3l/min with positive displacement pumping and dispensing up to 6.9 barg.

They are also self-priming and offer instant reversibility, so will pump in either direction.

FMI piston pumps can be supplied with two different types of Ismatec drives, the Reglo or MCP, both of which are said to ensure high repeatability.

These drives provide users with benefits including: choice of dispense functions by time or by volume; output set by speed or flow rate; interval dispensing with a pause or with a preset number of dispensing cycles; and a piston stroke, which can be automatically reversed at the end of a dispense to prevent any drips.

Control options include RS232 and analogue interfaces.

Speed control is proportional to a mA signal or through an RS232 connection and programmable models are also available.

The option of either Reglo or MCP drives is said to ensure optimum flexibility.

For example, Reglo bench-top drives enable a selection of different FMI ceramic piston pump heads to be fitted; capacities range from 0-045 to 180ml/min and a digital version is also available, which can be microprocessor controlled.

MCP drives are said to be an ideal choice when dispensing and filling applications involve dusty, humid or corrosive environments or in clean rooms when IP65 protection is a requirement.

These drives can be programmed on-site independent of a PC; they deliver higher capacities up to 2,300ml/min and can be fitted with a selection of different FMI piston pump heads.

Typical applications for the FMI piston pump with either the Reglo or MCP drive include: accurate dispensing of sensitive fluids in medical, biotech and pharmaceutical applications; transferring corrosive fluids in industrial and electronics manufacturing; metering and mixing paints; metering petroleum additives; photo chemicals; inks; coating sweets and the addition of flavours.

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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