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Neptune Chemical Glycol Feed Systems

Neptune Chemical Glycol Feed Systems

Neptune Glycol Feeders are designed for the addition of glycol solution to closed-loop chilled or hot water systems. The system automatically maintains pressure in the loop by adding glycol solution to make up for losses that occur due to leakage. Glycol addition is controlled by a pressure switch with adjustable low and high set points.

  • Standard Pressure Switch:
  • Cut-In Range: 10-45 PSI
  • Cut-Out Range: 20-60 PSI
  • Adjustable Differential: 10-30 PSI Other pressure switches available

When the pressure in the loop reaches the low set point, the pump begins to feed glycol into the system until the high-pressure set point is achieved and stops the pump.


  • 50-gallon polyethylene tank mounted in a steel frame
  • Bronze rotary gear pump (1.5 gpm @ 100 psi)
  • Float switch for low-level pump shutoff and alarm
  • NEMA 4X control panel


Neptune is a premier manufacturer of chemical metering pumps, chemical feed systems and accessories. Neptune’s hydraulic and mechanical diaphragm metering pumps are well known for injecting chemicals into boilers and cooling towers, and in water and wastewater treatment applications. Major applications also include power generation, oil and gas exploration, petro-chemical, and irrigation markets. Other Neptune products include make-down systems to prepare and activate liquid or dry polymer for injection into water and wastewater treatment processes, a complete line of portable mixers, plus steam and water sample analysis panels.

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