Graco Therm-O-Flow 20

The Therm-O-Flow 20 is an industrial hot melt system that is perfect for applications in low and high flow settings. It offers improved production throughput, better process monitoring and reliable, efficient operation.

Improve process efficiency

Keep your production running with automatic electric crossover when using tandem units

Improve production capability 

Smaller footprint lets you place unit near the application
Capable of melt rates up to 1.3 lb/min.

Reduce energy costs 

Inactivity shutoff and temperature setback reduces energy costs

Support factory environmental initiatives

Graco NXT Air Motors operate around 87 decibels while other comparable motors operate up to 103 decibels

Intuitive, easy to use controls

  • Displays actual and set point temperatures for up to 12 zones per unit
  • Material tracking and machine diagnostics can be downloaded to USB
  • Provides programmable preventative maintenance schedules
  • Languages supported: English, Spanish, German, French, Chinese, Japanese, Portuguese, Italian and Korean

Merkur & NXT Air Motor Technology

  • Provides quiet, reliabile, efficient operation
  • Proven Graco technology

    Therm-O-Flow 20 Hot Melt System

    Air inlet size

    1/2 npsm(f)

    Air motor sound data

    See air motor instruction manual.

    Wetted Parts

    carbon steel, brass, chrome, zinc, nickel plating, stainless steel (304, 316, 440, and 17–4 PH), alloy steel, ductile iron, PTFE

    Displacement pump effective area

    Merkur and NXT

    1.24 in²

    President

    0.884 in²

    Volume per cycle

    Merkur and NXT

    11.7 in³

    President

    3.8 in³

    Pump cycles per 1 gallon (3.8 liters)

    Merkur and NXT

    21

    President

    61

    Ram maximum input pressure

    Merkur and NXT

    125 psi

    President

    120 psi

    Maximum pump operating temperature

    Merkur and NXT

    400°F

    President

    400°F

    Pump fluid outlet size

    Merkur and NXT

    1 in npt(f)

    President

    1/2 in npt(f)

    Maximum Fluid Working Pressure

    Merkur 6.0 in

    2300 psi

    Merkur 7.5 in

    3000 psi

    NXT 6500

    3000 psi

    President 4.25 in

    1800 psi

    Maximum Air Input Pressure (Pumps)

    Merkur 6.0 in

    100 psi

    Merkur 7.5 in

    82 psi

    NXT 6500

    43 psi

    President 4.25 in

    120 psi

    Power Requirements

    Compressed Air (typical)

    25–50 scfm

    Voltage (as selected)

    220/240 V, 3-phase, 50/60 Hz

    380/400 V, 3-phase, 50/60 Hz

    470/490 V, 3-phase, 50/60 Hz

    575 V, 3-phase, 50/60 Hz

    Peak Consumption (includes drum melt grid, pump, and a 6kVa transformer for the 230 V hoses and accessories)

    Standard melt grid platen with President pump

    6.4 kVa

    Standard melt grid platen with Merkur or NXT pump

    8.7 kVa

    Smooth melt grid platen with President pump

    6.4 kVa

    Smooth melt grid platen with Merkur or NXT pump

    8.7 kVa