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Series 500 High Viscosity Pump

Neptune Series 500 High Viscosity Metering Pump

Neptune high viscosity, flat diaphragm "V-Pumps" are designed to accurately meter viscous fluids up to 5,000 cP such as polymers and other thick liquids.

Features:

  • Handles moderate viscosity fluids.
  • Standard flat diaphragm.
  • Large internal porting with a large, single ball suction check valve.
  • Capacities to 30 gph (113 lph) at 100 psi (8 kg/cm²).
  • Available in all 316SS with SS trim.
  • Electric or pneumatic stroke control options and variable speed drives.
  • Variable Oil By-pass™ stroke adjustment mechanism provides better valve performance than variable linkage designs.
  • Teflon® diaphragm withstands most chemicals.

Specifications are given below, or you can download product information for the Series 500 High Viscosity line (PDF format) here:

  • Data Sheet (specifications, performance charts & dimensions)
  Series 500 High Viscosity Specifications
Model
Number
Capacity
@ 100 PSI
Materials of
Construction
Pressure
@ 1/3HP
Piston
Diameter
(inches)
Strokes
Per Minute
Shipping
Weight
(lbs.)
gph lph psi kg/cm²
515-VS-N3 3.0 11.3 316 SS 900 63 0.500 117 70
520-VS-N3 2.0 7.5 316 SS 400 28 0.687 37 70
522-VS-N3 4.0 15.1 316 SS 500 35 0.687 72 70
525-VS-N3 7.0 26.5 316 SS 700 49 0.687 117 70
530-VS-N3 5.5 20.8 316 SS 300 21 1.062 37 70
532-VS-N3 11.0 41.6 316 SS 300 21 1.062 72 70
535-VS-N3 18.0 68.0 316 SS 300 21 1.062 117 70
537-VS-N3 22.0 83.0 316 SS 300 21 1.062 144 70
547-VS-N3 30.0 113.0 316 SS 200 14 1.187 144 70

Notes:
Model 547 available with 1/2 HP motor, providing 300 psi (21 kg/cm²) maximum pressure
Duplex models available – contact us for more information.


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