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Delivering accurate, precise and quality solutions

Neptune's technical innovations, backed by solid customer support, builds confidence in our complete portfolio of products, delivering peace of mind reliability to our end users.

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Single-source, end-to-end solutions

Neptune delivers pump systems for use in the reliable and safe handling of chemical fluids used for water treatment applications in municipalities, general industries and agriculture.

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Series PZ PVC Liquid Head Series PZ PVDF Liquid Head

PZ Series Electronic Metering Pumps

Neptune’s PZ Series Electronic Metering Pumps offer low volume and low pressure for accurate, reliable injection for pumping chemicals and additives to a variety of applications. Neptune PZ pumps are offered in three sizes that are popular with water treaters, filtration and purification applications, well driller, and others.

Liquid Head Materials of Construction
  • 316SS
  • PVC
  • PVDF
  • Acrylic
  • PTFE
  • 0.44 gph (1.67 L/h) to 20.6 gph (78 L/h)
Max Pressure
  • 200 psi (13.8 bar)
Max Temperature
  • 104°F (40°C)
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Features and Benefits

  • Designed with capabilities to calibrate the pump flow to actual condition of chemical, pressure, viscosity, etc.
  • Digital operation display indicates speed, feed rate, status, and other operational data
  • 300 strokes per minute allow more uniform distribution at all feed rates
  • Manual and automatic control features
  • Operates on any single phase voltage from 94 VAC to 264 VAC
  • Manual, 4-20 mA or water meter pulse controlled
  • Capacity to handle variety of liquid end materials