Neptune is a premier manufacturer of chemical metering pumps, chemical feed systems and accessories. Neptune’s hydraulic and mechanical diaphragm metering pumps are well known for injecting chemicals into boilers and cooling towers, and in water and waste water treatment applications. Major applications also include power generation, oil and gas exploration, petro-chemical, and irrigation markets.

Other Neptune products include make-down systems to prepare and activate liquid or dry polymer for injection into water and waste water treatment processes, a complete line of portable mixers, plus steam and water sample analysis panels.

Neptune product lines include:

  • Metering pumps
  • Hydraulic diaphragm metering pumps
  • chemical metering pumps
  • chemical feed systems
  • fertilizer pumps
  • fertigation pumps
  • chemigation pumps
  • high viscosity pumps
  • metering slurry pumps
  • dosing pump
  • electronic diaphragm pumps
  • Polymer Feeder
  • Liquid Polymer Feeder
  • Polymer blend and feed
  • Dry Polymer feeder
  • Portable Mixers
  • Gear-Drive Mixers
  • Top Entering Mixers
  • Bung Entering Mixers
  • Drum Mixers
  • Intermediate Bulk Containers (IBC) Mixers
  • Tote Mixers
  • Air-operated Mixers


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