Neptune Chemical Pumps

Series MP7000

The Series MP7000 Mechanically Actuated Diaphragm Metering Pump is the low-flow version of the MP7100 metering pump. The MP7000 incorporates the ruggedness of a hydraulic diaphragm metering pump, eliminates the need for intermediate fluid or hydraulic oil to actuate the diaphragm and eliminates the potential for gearbox oil to contaminate the process since it has an oil free gearbox design. The result is a pump design that provides reliable and accurate dosing.

Pump Capacity

Capacities to 27 gph (102 lph)

Operating pressures 235 psi (16 bar)

10:1 turndown via micrometer-type knob with high-contrast, easy-to-read scale

Repeatable metering accuracy is ± 2% of full scale (at constant hydraulic conditions)

Operational automatic speed control with variable frequency or SCR drive

All models include standard 63 IEC motor adapter

Series 7000z

Neptune™ 7000Z pumps have been designed to handle a wide assortment of volatile chemicals and clear liquids at pressures up to 12 bar (174 psi).

Pump Capacity

Large flow range: 2 L/h – 795 L/h (0.5 gph – 210 gph)

Liquid end materials: PVC, PVDF, 316SS

Excellent for handling volatile chemicals

Suction lift up to 2 m (6.5 ft.)

Special design valve seat to ensure leak-free operation while running or stopping

Self-clean check valve structure

Series MP7100

The Neptune Series MP7100 is a mechanically actuated diaphragm metering pump engineered from the ground up to be more robust and durable than similar mechanical diaphragm pump designs.

Heavy-duty, corrosion-resistant, aluminum gearbox

Gears operate in an oil bath for longer life

Finned gearbox design dissipates heat more efficiently than other designs

Rugged bronze gears are quiet-running and provide long service life

Oversize check valves improve performance and minimize friction losses

Short stroke length reduces diaphragm stress and promotes longer diaphragm life

Superior performance when pumping chemicals such as sodium hypochlorite, which can off-gas

Suction-lift exceeding 20 ft. (6m) on water-like chemicals

Pump Capacity

Capacities to 275 gph (1041 lph)

Operating pressures to 235 psi (16 bar)

10:1 turndown via micrometer-type knob with high-contrast, easy-to-read scale

Repeatable metering accuracy is ± 2% of full scale (at constant hydraulic conditions)

Rugged, PTFE-faced, pre-formed composite diaphragm with steel backing plate assures volumetric accuracy throughout the capacity range

Pump capacity can be easily adjusted while pump is running

Lockable micrometer knob prevents drift

Optional automatic speed control with variable frequency or SCR drive

All models include standard NEMA 56C or an optional IEC motor adapter