Neptune Products

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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Neptune Markets

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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ProTips Education Center

Single-Source Resource for Industrial Water Treatment

New educational center dedicated to providing you with resources, best practices and product information for the industrial water treatment market.

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NXP Series Stepper Motor Pumps

Neptune’s NXP Series drive is fully adjustable. The stepper-motor with its wear-free tooth belt drive, ensures a particularly homogeneous and gentle dosing process. Pressure and suction strokes can be performed at different speeds. This produces a constant supply stream, providing low-pulsation dosing. To adapt the dosing performance, the stroke frequency can be manually adjusted across the range from 0 to 100%.

Liquid Head Materials of Construction
  • PTFE
  • 0.68 gph (2.57 L/h) to 8.10 gph (30.66 L/h)
Max Pressure
  • 232 psi (16 bar)
  • 290 psi (20 bar) for PVC Version
Max Temperature
  • 316SS/PVDF - 176°F (80°C)
  • PVC - 95°F (35°C)
  • PP - 140°F (60°C)

*Certain models will vary depending on liquid head and pump size.

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Features and Benefits

  • Capacity range to 8.10 gph (30.66 L/h), up to 232 psi (16 bar) (290 psi (20 bar) for PVC)
  • Wide range power supply 110 - 240 VAC, -10% / +5%, 50/60 Hz, 25 W
  • Infinitely variable stroke frequency from 0 to 100%
  • Calibration functionality
  • Fully controllable stepper-motor drive
  • Double-ball valves ensure accurate dosing
  • Materials: PVC, PP, PVDF
  • Compact design, low space requirement
  • Integrated dosing head venting device
  • Wall and floor mounting possible without a bracket
  • Supplied with connection sets (plastic version)