500-S Series Hydraulic Metering Pumps come standard in Neptune’s Simplex design, but can be converted to Neptune’s Duplex design - 500-D Series. Neptune’s Duplex design is configured to include two...
500-D Series Hydraulic Diaphragm Pumps 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...
Neptune 500-E Series Hydraulic Metering Pumps offers an economical alternative to the standard 500 Series pumps or a packed plunger type pump. MATERIALS OF CONSTRUCTION