The world's most accurate pumps

Written by: Tom Austin-Morgan | Published:

Fuji Techno Industries, of Japan, produces a range of Super Metering Pumps (SMPs) that are claimed to feature pumping accuracy of ±0.1% or less. Because of their design, they are also said to produce no pulsations in the flow of liquid.

According to Motor Technology, the UK based European agents for Fuji Techno; no other pump in the world is able to match the accuracy and performance of the SMP.

Fuji's SMPs comprise a pump head, an electric motor and a triple plunger system driven by a cam that controls the motion cycle of the plungers. The liquid being pumped enters and exits the pump head through suction and discharge valves, filling each of the three chambers with a precise volume of liquid as each piston, or plunger, withdraws on its suction stroke. The liquid is then discharged as each plunger re-enters its chamber.

Specially designed suction and discharge valves result in smooth movement of the check balls minimising wear to the valve seats and ensures accuracy is maintained over long periods of operation. This is also said to eliminate the possibility of the valves themselves causing pulsations or leakage.

Typical applications include pharmaceutical and chemical processing, urethane and other resins, chromatography, explosives, food processing, film, spraying and coating applications, cosmetics line mixing for liquids, feed for extruders and water treatment.


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