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Neptune Metering Pump Series 500S/500D

Neptune Metering Pump Series 500S/500D



500S/500D The Original "dia-Pump" Available Simplex or Duplex

• Simplex capacities from 0.2 gph (0.75 lph) to 80 gph (302 lph)

• Pressures to 3000 psi (210 kg/cm2)

EZE-CLEAN™ Valves–Cartridges can be removed for cleaning without disturbing the piping to the pump.

All Neptune "dia-Pumps" are adjustable from 10% through 100% of capacity by micrometer dial.

Neptune "dia-Pumps" are available in the following materials of construction:

• Cast Iron with 316SS Trim

• 316SS • PVC • Alloy 20 • Kynar


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