Series 500A Hydraulic Metering Pumps

500-A Series Hydraulic Metering Pump is a Neptune simplex design. This design configuration includes a single micrometer dial with one liquid head. 500-A Series pumps cannot be converted to the duplex design.

  • Simplex capacities from 1 gph (3.7 L/h) to 18 gph (68 L/h)
  • Pressures up to 1,100 psi (77 bar)
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Features and Benefits:

  • 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