Igeneral Description - Neptune MP7100 Installation Operation & Maintenance

The Neptune MP7000 Mechanical Diaphragm metering pump is a reliable metering pump of the low-pressure diaphragm
type. Under constant conditions of temperature, pressure, and capacity setting, a +/- 2% metered discharge volume is
maintained. Rugged contoured composite diaphragm designed for high metering accuracy.
A reciprocating rod set at a fixed stroke length and rate actuates a flexible, chemically inert, Teflon faced diaphragm
creating the pumping action.
Precision-engineered liquid ends meters mild solutions, aggressive chemicals, high viscosity polymers (up to 2500cP) and
slurries (hydrated lime slurries up to 4 lb/gallon of water, activated carbon slurries up to 1 lb/gallon of water). If metering of
liquids with higher viscosity is required please contact factory.
Metering accuracy is maintained by the ball check valves in the suction and discharge pump heads. Screw-in cartridge
ball check valves eases maintenance.
Temperature limitations on the plastic heads are: 36 – 125°F (2 - 52°C) for PVC; 36 - 200°F (2-93°C) for PVDF.
PLEASE READ INSTRUCTION MANUAL COMPLETELY BEFORE INSTALLING PUMP.
SECTION I
GENERAL DESCRIPTION
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