Neptune 500 Series User Manual

INSTALLATION
OPERATION &
MAINTENANCE
NEPTUNE
SERIES 500/5000
PUMPS
Model 500/5000
500-A, 500-D, 500-E,
500-S and 500-VS
NEP-ZL105638
03.2018_REV 7

Neptune 500 Series Specifications

General

Maximum Flow Rate	500 GPH
Max Flow Rate	500 GPH
Voltage	115 V
Material	Thermoplastic
Type	Submersible
Inlet/Outlet Size	3/4" Garden Hose Thread
Max Head	25 ft

Summary

GENERAL DESCRIPTION

LIMITED WARRANTY

PARTS ORDERING INSTRUCTIONS

INSTALLATION INSTRUCTIONS

GENERAL INSTALLATION GUIDELINES

General guidelines for pump installation and handling.

SUCTION PIPING REQUIREMENTS

Details requirements and recommendations for pump suction piping.

FLOODED SUCTION START-UP

Step-by-step guide for starting up the pump with flooded suction.

SUCTION LIFT START-UP

Procedure for starting up the pump with suction lift.

MAINTENANCE AND DISASSEMBLY

MAINTENANCE SCHEDULE

Outlines the recommended maintenance schedule and tasks.

VALVE CARTRIDGE SERVICE

Instructions for removing and servicing pump valve cartridges.

DIAPHRAGM REPLACEMENT PROCEDURE

Steps for removing the pump head and replacing the diaphragm.

MOTOR OPERATING CONDITIONS

TROUBLESHOOTING GUIDE

PARTS LIST

DOUBLE DIAPHRAGM OPTION