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Neptune Mechanically Actuated Metering Pumps


Neptune Mechanically Actuated Metering Pumps



The Series MP7000 Mechanically Actuated Diaphragm Metering Pump is the low-flow version of the MP7100 metering pump. The MP7000 incorporates the ruggedness of a hydraulic diaphragm metering pump, eliminates the need for intermediate fluid or hydraulic oil to actuate the diaphragm and eliminates the potential for gearbox oil to contaminate the process since it has an oil free gearbox design. The result is a pump design that provides reliable and accurate dosing.

MP-7000 Benefits

  • Heavy-duty, corrosion-resistant aluminum gearbox
  • Finned gearbox design dissipates heat more efficiently than other designs
  • Rugged bronze gears are quiet-running and provide long service life
  • Oversize check valves improve performance and minimize friction losses
  • Short stroke length reduces diaphragm stress and promotes longer diaphragm life
  • Superior performance when pumping chemicals such as sodium hypochlorite, which can off-gas
  • Excellent suction lift for water-like chemicals

MP-7000 Features

  • Operating pressures 235 psi
  • Capacities to 27 gph
  • 10:1 turndown via micrometer-type knob
  • Accuracy is ± 2% of full scale (at constant hydraulic conditions)
  • Can be used with VFD or SCR drive
  • All models include standard 63 IEC motor adapter

The Neptune Series MP7100 is a mechanically-actuated diaphragm metering pump engineered from the ground up to be more robust and durable than similar mechanical diaphragm pump designs. The MP7100 pump incorporates the ruggedness of a hydraulic diaphragm metering pump, eliminates the need for intermediate fluid or hydraulic oil to actuate the diaphragm and reduces the potential for gearbox oil to contaminate the process. The result is a pump design that provides reliable and accurate dosing of a wide range of mild to aggressive chemicals, including those used in industrial and municipal water & wastewater treatment, chemical processing and agriculture.

The MP7100 finned gearbox dissipates the heat created during normal operation more readily than other designs. The straight-through flow design of the MP7100 liquid end and the elimination of the contour plate result in improved flow characteristics, making the pump well-suited for pumping difficult chemicals such as viscous fluids, shear sensitive fluids and fluids with suspended solids.

Benefits

  • Heavy-duty, corrosion resistant, aluminum gearbox
  • Gears operate in an oil bath for longer life
  • Finned gearbox design dissipates heat more efficiently than other designs
  • Rugged bronze gears are quiet-running and provide long service life
  • Oversize check valves improve performance and minimize friction loses
  • Short stroke length reduces diaphragm stress and promotes longer diaphragm life
  • Superior performance when pumping chemicals such as sodium hypochlorite, which can off-gas
  • Suction-lift exceeding 20 ft. (6m) on water-like chemicals

Mechanical Metering Pump Application Overview

Neptune Hydraulic Diaphragm metering pumps are typically used for chemical metering in process and agricultural industries. Chemical metering pumps are available for high and low pressure applications with manual and electronic stroke control. Typical applications include:

  • Potable Water Treatment
  • Biocide Metering
  • Sand Filtration of Potable Water
  • Addition of Additives in Paper and Pulp Industry
  • Metering Chemicals in Coolant Treatment
  • Metering Fluids in Chemical Production
  • Waste Water Treatment Plant Chemical Addition
  • Downstream Oil Treatment
  • Onshore Inhibitor Metering>
  • Metering of Chemicals to treat Coal and Minerals



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