Pump Solutions Group Neptune Series 600 dia-PUMP MODELS 610 thru 647 - Manual (Page 4)

SECTION I
GENERAL DESCRIPTION
The Neptune series 600 “dia-PUMP” is a reliable metering pump of the high-pressure diaphragm type. Under
constant conditions of temperature, pressure, and capacity adjustment settings, a plus or minus range of 1%
metered discharge volume is maintained.
A plunger reciprocating at a fixed stroke displaces hydraulic fluid which actuates a flexible, chemically inert,
Teflon®, diaphragm to create pumping action. The capacity of the pump is regulated by controlling the
volume of hydraulic fluid, which bypasses the diaphragm cavity.
Metering accuracy is maintained by a control rod which allows hydraulic fluid replacement and air venting
automatically with each stroke, while also taking into account temperature changes of the hydraulic fluid.
Metering accuracy is also insured by the use of double ball check valves on the suction and discharge of the
pump.
PLEASE READ THE INSTRUCTION MANUAL COMPLETELY BEFORE INSTALLING THE PUMP.
1