Neptune Diaphragm Hydraulic Metering Pump - 500-A Series Neptune Diaphragm Hydraulic Metering Pump - 500-A Series

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500-A Series Hydraulic Metering Pumps are Neptune's Simplex design. Neptune's Simplex design configuration includes a single micrometer dial with one liquid head. 500-A Series pumps cannot be converted to the Duplex design.

Liquid Head Materials of Construction
  • 316SS, C-20, PVC
Diaphragms
  • PTFE
O-Rings
  • FKM as standard (PTFE available)
Capacity
  • 0.80 gph (3.03 lph) to 18 gph (68 lph)
Max. Pressure
  • 1,100 psi (77 kg/cm2)
Max. Temperature
  • 316SS, C-20 200°F (93°C); PVC 125°F, (52°C)
Standard Motor
  • 1/3HP-1ph-115VAC-60c-TEFC
  • icon_cert-CE
  • American Petroleum Institute Logo

Features and Benefits

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  • EZE-CLEAN™ Valves – feature cartridges that can be removed for cleaning without disturbing the piping to the pump
  • Ten turn micrometer dial calibrated in 1% increments, with the ability to adjust capacity from 10% to 100%
  • Variable Oil By-Pass™ Stroke Adjustment provides a better valve performance when compared to variable linkage designs
  • Bright color contrasted dial protected from corrosion by clear PVC Covering
  • Stroke mechanism moves only when adjustment is made, eliminating wear
  • Piston is powered through complete stroke length at all capacity adjustments, eliminating stress, wear and shock of lost motion designs
  • Totally enclosed fan-cooled motor with built-in automatic thermal overload

Downloads

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Brochures

IOMs

Dimensional Drawings