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Series 7000 Metering Pump in PVC

Neptune Series 7000 Mechanically Actuated Metering Pumps

The Neptune Series 7000 "dia-PUMP" are mechanically actuated metering pumps designed for water, wastewater and process applications. The mechanical design eliminates the use of contour plates on the liquid side of the diaphragm. The simple, straight through valve and head design allows improved flow characteristics.

Series 7000 Features:

  • Self-priming
  • Superior performance when pumping chemicals such as sodium hypochlorite, which can off-gas
  • Suction lift exceeding 20 ft. on water-like chemicals
  • Easily handles viscosities in excess of 5000 cps
  • Capacities to 300 gph; Pressures to 150 psi
  • Pump capacity is adjustable by micrometer dial while the pump is running
  • 10 turn micrometer dial calibrated in 1% increments; Bright colored contrasted dial protected by clear PVC covering
  • Micrometer stroke length adjustment allows 10:1 turndown
  • Variable speed drives allow greater turndown range or automatic capacity control
  • All moving parts run submerged in oil for extended service
  • All models accept standard 56C frame motors

Specifications are given below, or you can download product information for the Series 7000 line (PDF format) here:

  • Data Sheet (specifications, performance charts & dimensions)
  Series 7000 Specifications
Model
Number
Strokes
Per Minute
Stroke
Length
(mm)
Diaphragm
Diameter
(mm)
Capacity Pressure Motor Size (HP) Required for Operation At:
gph lph psi kg/cm² 50 psi 75 psi 100 psi 150 psi
7101-NX 18 14 100 13 49 150 11 1/3 1/3 1/3 1/3
7100-NX 37 14 100 25 95 150 11 1/3 1/3 1/3 1/3
7120-NX 72 14 100 50 190 150 11 1/3 1/3 1/3 1/2
7150-NX 117 14 100 80 303 150 11 1/3 1/3 1/2 3/4
7200-NX 37 18 200 95 360 100 8 1/3 1/2 3/4 n/a
7220-NX 72 18 200 185 700 100 8 1/2 3/4 1 n/a
7250-NX 117 18 200 300 1135 100 8 1 2 n/a

Notes:
Use next larger motor for VS drive or SCR drive applications.


Series 7000 in 316 SS
  Series 7000 Materials Options
Material Code Pump Head Valve Check Diaphragm
N3 316 SS 316 SS Teflon
N5 PVC Ceramic Teflon
N8 Kynar Ceramic Teflon

Notes:
PVC head pumps are satisfactory for temperatures to 125°F / 52°C.
Kynar head pumps are satisfactory for temperatures to 200°F / 95°C.


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