Hydraulic Diaphragm Metering Pumps
From Neptune Chemical Pump Company Inc

Hydraulic,Diaphragm,Metering,Pumps,Neptune,Chemical,Pump,Company,IncNeptune Model 5003/5005 hydraulic diaphragm metering pumps are built to deliver very low flows, repeatable and accurate ranging down to quarts per day. Discharge pressures are higher than are possible with mechanical diaphragm pumps. Explosion-proof models are available for use in hazardous atmospheres.

These pumps are especially popular in oil/gas production, oil recovery and refineries. Typical applications include the injection of antifoam agents, corrosion inhibitors and other additives injected at very low volumes but high pressures. These pumps are also used for neat feeding of boiler chemicals.

Features and Benefits

  • High discharge pressures, to 3000 psi (210 kg/cm2) Exceeds limits of most small pumps, ideal for high pressure systems

  • EZE-CLEAN™ valves -- Cartridges can be removed for cleaning without disturbing piping

  • Electric stroke-length control available -- automatic capacity control in response to standard 4-20 mA process signal (variable speed drives may not be used with Models 5003/5005 due to low stroking speed)

  • Explosion-proof motors available -- suitable for use in hazardous atmospheres

  • Low flow-rates–quarts/day -- accurate, reliable chemical feed

Neptune Electric Stroke Control Brochure


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Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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