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  • 4,000 psi (275.8 bar) max. discharge pressure
  • 200°F (93°C) max. temperature (contact factory for higher temperatures)
  • 4.5 gph (16 L/h) to 28 gph (106 L/h) capacity
  • 1/2HP to 2HP standard motor


The Neptune 6000 Series Chemical Metering Pump has an adjustable pump capacity through the use of a micrometer dial that can be varied while pump is running or stopped. These pumps also utilize a hydraulically-balanced PTFE diaphragm that eliminates stress. 

Variable Oil By-Pass Stroke Adjustment provides better valve performance when compared to variable linkage designs. This increase in performance is the result of valve checks that provide extra time to seat even in viscous liquids since they are idle during the by-pass portion of the suction and discharge strokes.


This product can be used in the following applications: