Pump-solutions-group Neptune Series 500 MODEL 481 THRU 547 Manuel d'utilisateur télécharger pdf (Page 4)

SECTION I

GENERAL DESCRIPTION

The Neptune Series 500 “dia-PUMP” is a reliable metering pump of the high-pressure diaphragm type. Under

constant conditions of temperature, pressure, and capacity adjustment settings, a +/- 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.

Capacity adjustment can be made manually or automatically by instrument signal.

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.

The text and illustrations in the main body of this manual are based upon the Series 500 pump, shown at left above.

The Series 500-A and 500-E pumps are very similar to the Series 500 pump. The liquid ends are interchangeable.

Please refer to Appendix for all Models other than 500-S or 500-D.

Models 500-A, 500-E, 500-E-AR, 500-VS, 481 and the Double Diaphragm Option are described in the Appendix.

SERIES 500-E “dia” PUMP

WITH INTEGRAL TEFC MOTOR

SERIES 500-A “dia” PUMP

WITH INTEGRAL TEFC MOTOR

SERIES 500 “dia” PUMP

WITH INTEGRAL TEFC MOTOR

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Pump-solutions-group Neptune Series 500 MODEL 481 THRU 547 Manuel d'utilisateur Page 4