500-D Series Hydraulic Metering Pumps are Neptune's Duplex design. Neptune's Duplex design configuration includes a two micrometer dials with two liquid heads. Each pump comes with a variable Oil ByPass™ stroke adjustment feature which allows for better valve performance than variable linkage designs. The valve checks have extra time to seat even with heavy liquids since they are idle during the by-pass part of the suction / discharge strokes. Comes standard with 1/3 HP, 1ph, 115 VAC, 60C TEFC motor with other options available. Materials of construction options include: 316 Stainless Steel, Carpenter-20, PVC or PVDF Liquid Heads & PTFE Diaphragms. FKM standard O-Rings with optional PTFE offered. Capacities range from 0.80 gph (3.03 L/h) to 34 gph (128 L/h). 3,000 psi (206.8 bar) maximum pressure on certain configurations. Maximum Temperatures: 316SS & C-20 - 200°F (93°C); PVC & PVDF- 125°F (52°C).
Neptune 500-D Hydraulic Duplex Metering Pumps
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Neptune Metering Pumps
Clear all500-D-N3
Neptune Metering Pumps
500-D-N3 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 1.6 GPH at 100 psi, 1000 psi Max Pressure. 316SS, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 500DN3. PSG, A Dover Company.
515-D-N3
Neptune Metering Pumps
515-D-N3 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 6 GPH at 100 psi, 1100 psi Max Pressure. 316SS, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 515DN3. PSG, A Dover Company.
520-D-N3
Neptune Metering Pumps
520-D-N3 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 4 GPH at 100 psi, 700 psi Max Pressure. 316SS, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 520DN3. PSG, A Dover Company.
520-D-N4
Neptune Metering Pumps
520-D-N4 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 4 GPH at 100 psi, 700 psi Max Pressure. Carpenter 20, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 520DN4. PSG, A Dover Company.
522-D-N3
Neptune Metering Pumps
522-D-N3 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 8 GPH at 100 psi, 700 psi Max Pressure. 316SS, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 522DN3. PSG, A Dover Company.
522-D-N4
Neptune Metering Pumps
522-D-N4 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 8 GPH at 100 psi, 700 psi Max Pressure. Carpenter 20, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 522DN4. PSG, A Dover Company.
522-D-N5
Neptune Metering Pumps
522-D-N5 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 8 GPH at 100 psi, 400 psi Max Pressure. PVC, FKM O-Rings, Glass Ball-Check, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 522DN5. PSG, A Dover Company.
525-D-N3
Neptune Metering Pumps
525-D-N3 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 14 GPH at 100 psi, 900 psi Max Pressure. 316SS, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 525DN3. PSG, A Dover Company.
525-D-N5
Neptune Metering Pumps
525-D-N5 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 14 GPH at 100 psi, 400 psi Max Pressure. PVC, FKM O-Rings, Glass Ball-Check, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 525DN5. PSG, A Dover Company.
530-D-N4
Neptune Metering Pumps
530-D-N4 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 11 GPH at 100 psi, 350 psi Max Pressure. Carpenter 20, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 530DN4. PSG, A Dover Company.
532-D-N3
Neptune Metering Pumps
532-D-N3 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 22 GPH at 100 psi, 350 psi Max Pressure. 316SS, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 532DN3. PSG, A Dover Company.
535-D-N3
Neptune Metering Pumps
535-D-N3 Neptune Pumps Duplex Hydraulic Metering Pump, Series 500-D. 36 GPH at 100 psi, 350 psi Max Pressure. 316SS, FKM O-Rings, PTFE Diaphragm. 0.33 HP, 115 Volts, 60 Hz, 1 Ph (Single Phase), TEFC - (Totally Enclosed Fan Cooled) Motor Enclosure. Model 535DN3. PSG, A Dover Company.
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