• Neptune PZ model

    • (Speed only is adjustable from 15 to 300 SPM)
    • Head can be turned 90° to allow base to be mounted to a vertical wall
    • Sizes -31/ -61/ -12 only

    CAUTION – ALL MODELS • Ambient temperature: 32 to 104°F (0 to 40°C) Pumped liquids: Temperature: 32 to 104°F (0 to 40°C), Viscosity: 100 CPS max. except as noted • This pump is designed for outdoor use. Avoid installing pump in a location where service life could be shortened (i.e., where it is exposed to direct sunlight or driving rain). • This pump cannot pump liquids containing a slurry. • A relief valve should be installed on the discharge side, if the pump does not have a built-in relief valve and the discharge piping has a shutoff valve.


  • Neptune PZi4 Automatic

    • Adjust speed 1 to 300 SPM plus stroke length adjustment1
    • sizes -31/ -61/ -12: 50% to 100%
    • stroke length adjustment External interlock (Examples: level switch, remote start, reset)
    • Indicates speed and status
    • Pulse signal Frequency-divide 1/1 to 1/9999, Multiply 1 to 9999
    • Analog signal Shift function, Proportional band function
    • PZi4 has one analog input and one high speed digital pulse input
    • Head can be turned 90° to allow base to be mounted to a vertical wall
    • Sizes -31/ -61/ -12 only.
    CAUTION – ALL MODELS • Ambient temperature: 32 to 104°F (0 to 40°C) Pumped liquids: Temperature: 32 to 104°F (0 to 40°C), Viscosity: 100 CPS max. except as noted • This pump is designed for outdoor use. Avoid installing pump in a location where service life could be shortened (i.e., where it is exposed to direct sunlight or driving rain). • This pump cannot pump liquids containing a slurry. • A relief valve should be installed on the discharge side, if the pump does not have a built-in relief valve and the discharge piping has a shutoff valve..




  • Neptune Feed

    The Model FC-1 Flow Checker output provides vital information for water treatment programs requiring feed verification to manage chemistry and monitor drum inventory.

    • Injection of chemicals to boilers and cooling towers
    • Chlorine sterilization for food plants, small-scale water-supply systems, buildings and swimming pools
    • Injection of nutrients and disinfectants in the livestock industry, such as poultry and hog producers, as well as for hydroponic cultivation
    • Very low flow rate injection of low viscosity liquids for any application (100 CPS max. except high viscosity models)
    • The flow checker mounts directly to the discharge of PZ and PZi metering pumps.
    • The flow checker is an oval gear flow meter which measures the pump output and transmits one pulse for each 1 ml of flow.
    • Flow checker output can be connected to Model PZi8 Pumps for instantaneous indication of pump output displayed on the pump LCD.
    • Connect the flow checker output to your controller or PLC (external power supply required if not used with PZi8 type pump).

    CAUTION – ALL MODELS • Ambient temperature: 32 to 104°F (0 to 40°C) Pumped liquids: Temperature: 32 to 104°F (0 to 40°C), Viscosity: 100 CPS max. except as noted • This pump is designed for outdoor use. Avoid installing pump in a location where service life could be shortened (i.e., where it is exposed to direct sunlight or driving rain). • This pump cannot pump liquids containing a slurry. • A relief valve should be installed on the discharge side, if the pump does not have a built-in relief valve and the discharge piping has a shutoff valve..

  • Neptune PZD PZI

    PZD Series pumps offer higher capacities. These models feature an extra large keyboard and the injection rate can be entered directly in milliliters per minute. The injection rate can be set three ways by direct entry of: – Stroke speed: 1 to 300 spm – Percentage: 1 to 100% – Injection rate: ml/min. Onboard calibration measures the actual discharge volume under the exact operating condition of the specific installation and chemical, then stores that value to insure the correct injection rate.

    • Manual stroke length adjustment 20% to 100%.
    • Set points can be easily viewed on the LCD.
    • Pump head may be rotated to face in any of the three positions other than where the keypad and display are located.
    • Pump head can be decoupled from the controller base for remote mounting. High Capacity models are available in material codes VFC, VEC, SS and FTC only.

    VFC model is shown.

    CAUTION – ALL MODELS • Ambient temperature: 32 to 104°F (0 to 40°C) Pumped liquids: Temperature: 32 to 104°F (0 to 40°C), Viscosity: 100 CPS max. except as noted • This pump is designed for outdoor use. Avoid installing pump in a location where service life could be shortened (i.e., where it is exposed to direct sunlight or driving rain). • This pump cannot pump liquids containing a slurry. • A relief valve should be installed on the discharge side, if the pump does not have a built-in relief valve and the discharge piping has a shutoff valve..

  • nepPZiG

    PZiG Models offer capacities typically requiring motor driven pumps. Special models easily handle viscosities of 1000 CPS (up to 4000 CPS at reduced volume). Powerful onboard controls allow proportional flow rate, pH and residual chlorine control by direct analog connection eliminating the PID Controller and Inverter (plus the control panel to house them), that are required by similar sized motor driven pumps.

    The injection rate can be set three ways by direct entry of: 

    • Stroke speed: 1 to 300 spm
    • Percentage: 1 to 100%
    • Injection rate: ml/mil
    • Manual stroke length adjustment 20% to 100%.
    • Onboard calibration measures the actual discharge volume under the exact operating condition of the specific installation and chemical, then stores that value to insure the correct injection rate.
    • Multi-pump proportional flow rate injection from a single direct flowmeter signal (pulse/analog).
    • Two point level switch control Batch injection
    • Interval injection • Proportional control with shift and proportional band function.
    • Two line LCD screen displays injection rate and/or operational progress. Note: Install a pulsation dampener for discharge lines greater than 7 feet to achieve maximum pressure capability.

    – ALL MODELS

    • Ambient temperature: 32 to 104°F (0 to 40°C) Pumped liquids: Temperature: 32 to 104°F (0 to 40°C), Viscosity: 100 CPS max. except as noted
    • This pump is designed for outdoor use. Avoid installing pump in a location where service life could be shortened (i.e., where it is exposed to direct sunlight or driving rain).
    • This pump cannot pump liquids containing a slurry.
    • A relief valve should be installed on the discharge side, if the pump does not have a built-in relief valve and the discharge piping has a shutoff valve.

  • Neptune PZi8 Programable

    Discontinued Item Find Other Option or Call Our Specialist

    • Adjust speed 1 to 300 SPM plus stroke length adjustment..
    • sizes -31/ -61/ -12: 50% to 100% stroke length adjustment,
    • sizes -32/ -52 plus all PZD and PZiG Models: 20% to 100% stroke length adjustment..
    • Enter desired flow directly in ml/min..
    • Calibrate pump flow to actual condition of chemical,pressure, viscosity, etc...
    • External interlock (Examples: level switch, remote start, reset)..
    • Indicates speed and status..
    • Indicates speed, feed rate2, status and other operational data..
    • Pulse signal Frequency-divide 1/1 to 1/9999, Multiply 1 to 9999..
    • Analog signal Shift function, Proportional band function..
    • pH Control/Residual Chlorine Control..
    • PZi8 and PZiG have one analog input and two high speed digital pulse inputs..
    • Alarm output (Level switch, injection monitor..
    • PZi8 only when used with Flow Checker..
    • Operation pulse signal (Synchronous pulse output for each stroke)..
    • Operation progress signal (Time or number of strokes remaining in program)..
    • Two separate configurable outputs, either open collector (alarm, error, run) or pulse (operational sync or end of cycle)...
    • Alarm display, output and action (run, pause or stop) can be selected..
    • Two point level control.. Power supply for flow checker..
    • Interval operation (Repeat cycle program,ON time: 1 to 999999 minutes / OFF time: 1 to 999999 minutes..
    • Counter (Countdown batch injection,1 to 9999 strokes (X1, X10, X100, X1000)..
    • Head can be turned 90° to allow base to be mounted to a vertical wall..
    • Sizes -31/ -61/ -12 only.

    Discontinued See PW Model

    CAUTION – ALL MODELS • Ambient temperature: 32 to 104°F (0 to 40°C) Pumped liquids: Temperature: 32 to 104°F (0 to 40°C), Viscosity: 100 CPS max. except as noted • This pump is designed for outdoor use. Avoid installing pump in a location where service life could be shortened (i.e., where it is exposed to direct sunlight or driving rain). • This pump cannot pump liquids containing a slurry. • A relief valve should be installed on the discharge side, if the pump does not have a built-in relief valve and the discharge piping has a shutoff valve..

  • Neptune PZi8 Programable

    Discontinued Item Find Other Option or Call Our Specialist

    • Adjust speed 1 to 300 SPM plus stroke length adjustment..
    • sizes -31/ -61/ -12: 50% to 100% stroke length adjustment,
    • sizes -32/ -52 plus all PZD and PZiG Models: 20% to 100% stroke length adjustment..
    • Enter desired flow directly in ml/min..
    • Calibrate pump flow to actual condition of chemical,pressure, viscosity, etc...
    • External interlock (Examples: level switch, remote start, reset)..
    • Indicates speed and status..
    • Indicates speed, feed rate2, status and other operational data..
    • Pulse signal Frequency-divide 1/1 to 1/9999, Multiply 1 to 9999..
    • Analog signal Shift function, Proportional band function..
    • pH Control/Residual Chlorine Control..
    • PZi8 and PZiG have one analog input and two high speed digital pulse inputs..
    • Alarm output (Level switch, injection monitor..
    • PZi8 only when used with Flow Checker..
    • Operation pulse signal (Synchronous pulse output for each stroke)..
    • Operation progress signal (Time or number of strokes remaining in program)..
    • Two separate configurable outputs, either open collector (alarm, error, run) or pulse (operational sync or end of cycle)...
    • Alarm display, output and action (run, pause or stop) can be selected..
    • Two point level control.. Power supply for flow checker..
    • Interval operation (Repeat cycle program,ON time: 1 to 999999 minutes / OFF time: 1 to 999999 minutes..
    • Counter (Countdown batch injection,1 to 9999 strokes (X1, X10, X100, X1000)..
    • Head can be turned 90° to allow base to be mounted to a vertical wall..
    • Sizes -31/ -61/ -12 only.

    Discontinued See PW Model

    CAUTION – ALL MODELS • Ambient temperature: 32 to 104°F (0 to 40°C) Pumped liquids: Temperature: 32 to 104°F (0 to 40°C), Viscosity: 100 CPS max. except as noted • This pump is designed for outdoor use. Avoid installing pump in a location where service life could be shortened (i.e., where it is exposed to direct sunlight or driving rain). • This pump cannot pump liquids containing a slurry. • A relief valve should be installed on the discharge side, if the pump does not have a built-in relief valve and the discharge piping has a shutoff valve..