Glycol make-up unit maintains glycol solution levels in HVAC systems


  • Certificate of product liability insurance
  • Prefabricated and factory tested – NIST traceable test facility
  • UL/C-UL listed packaged pumping systems (QCZJ)
  • UL standard 508A – standard for industrial control panels
  • Touchscreen controller interface
  • AWS D1.1 certified structural welders
  • Engineered to order designs

Standard Features

  • Stock standard units with 55 or 100-gallon tanks
  • Relief valve adjustable between 50-125 psi
  • Steep pump curve allows for pressure settings up to 100 psi
  • Adjustable pressure switch with 30-150 psi set point range, 5-30 psi dead band and visible range scale
  • Union ball valves allow for easy maintenance, installation and service
  • Strainer with stainless steel mesh screen keeps debris from entering system
  • 120V/1 phase power with standard three prong plug eliminates the need for an electrical contractor
  • Low level switch protects against pump dry run (NC/NO dry contacts provided for¬†remote monitoring)


  • PLC controls for data centers
  • Duplex configuration
  • 3 phase input power
  • Expansion tank – 2.2-gallon 125 PSI rating


  • Closed loop heating systems
  • Chilled water systems

Product Certification

TIGERFLOW Certification

How to Buy

If you need a glycol make-up unit, find a TIGERFLOW Systems representative near you.

Download Product Information

Need some product assistance? Download the following files for our glycol make-up unit:

  • Autodesk Revit compatible file
  • AutoCAD file (2D views)
  • Autodesk Inventor part file
  • STEP file

Submittal Documents

Glycol Make-up Unit GMU-55 and GMU-100

TIGERFLOW Systems Reps

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