Neptune Series 500 High Viscosity Metering Pumps
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.
Neptune High Viscosity Brochure
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.













