HTF HF-2 Series

HTF HF-2 Series

Heat Transfer Oil SystemsHeat Transfer Oil Systems

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Mokon's HTF HF-2 Series heat transfer oil system provides accurate temperature control up to 600°F (315°C) with an option to go to 650°F (343°C) with improved performance, energy efficiency and reduced space requirements for large flow and higher heating capacity applications.

Unique Heating Design Maximizes Energy Efficiency

  • Smaller hold-up volume of fluid results in faster heat up and cool down
  • Longer heater and fluid life - unique flow pattern design and low watt density elements

Cool Oil Reservoir Design

  • Separate cool oil reservoir isolates heating loop from cooling loop
  • Continuous flow direct immersion heat exchanger eliminates thermal shock
  • Reduces oxidation rate or breakdown of fluid in cool oil reservoir
  • Only system designed to hold fluid in lower reservoir so fluid does not spill onto floor in event of a leak

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Hp Flow Rate & Pressure # of Zones Heating Capacity kW per Zone (total kW) Total Amps* Reservoir Tank Volume (gallons) Cabinet Dimensions (L x W x H)
3 40 GPM and up to 51 PSI 1 12 18.9 38 41" x 30" x 51"
3 40 GPM and up to 51 PSI 1 24 33.9 38 41" x 30" x 51"
3 40 GPM and up to 51 PSI 1 36 49 38 41" x 30" x 51"
3 40 GPM and up to 51 PSI 1 48 64 38 41" x 30" x 62"
3 40 GPM and up to 51 PSI 1 60 79.2 38 41" x 30" x 62"
3 40 GPM and up to 51 PSI 1 72 94.2 38 41" x 30" x 74"
3 40 GPM and up to 51 PSI 1 96 124.4 58 41" x 45" x 62"
3 40 GPM and up to 51 PSI 2 12 (24 kW) 37.7 38 41" x 30" x 51"
3 40 GPM and up to 51 PSI 2 24 (48 kW) 67.8 78 41" x 60" x 51"
3 40 GPM and up to 51 PSI 2 36 (72 kW) 98 78 41" x 60" x 51"
3 40 GPM and up to 51 PSI 2 48 (96 kW) 128.2 78 41" x 60" x 62"
5 60 GPM and up to 56 PSI 1 12 21.1 38 41" x 30" x 51"
5 60 GPM and up to 56 PSI 1 24 36.1 38 41" x 30" x 51"
5 60 GPM and up to 56 PSI 1 36 51.2 38 41" x 30" x 51"
5 60 GPM and up to 56 PSI 1 48 66.2 38 41" x 30" x 62"
5 60 GPM and up to 56 PSI 1 60 81.4 38 41" x 30" x 62"
5 60 GPM and up to 56 PSI 1 72 96.4 38 41" x 30" x 74"
5 60 GPM and up to 56 PSI 1 96 126.6 58 41" x 45" x 62"
5 60 GPM and up to 56 PSI 2 12 (24 kW) 42.1 78 41" x 60" x 51"
5 60 GPM and up to 56 PSI 2 24 (48 kW) 72.2 78 41" x 60" x 51"
5 60 GPM and up to 56 PSI 2 36 (72 kW) 102.4 78 41" x 60" x 62"
5 60 GPM and up to 56 PSI 2 48 (96 kW) 132.6 78 41" x 60" x 62"
5 90 GPM and up to 52 PSI 1 12 23.8 38 41" x 30" x 51"
5 90 GPM and up to 52 PSI 1 24 38.9 38 41" x 30" x 51"
5 90 GPM and up to 52 PSI 1 36 53.9 38 41" x 30" x 64"
5 90 GPM and up to 52 PSI 1 48 69.0 38 41" x 30" x 64"
5 90 GPM and up to 52 PSI 1 60 84.1 38 41" x 30" x 64"
5 90 GPM and up to 52 PSI 1 72 99.2 38 41" x 30" x 78"
5 90 GPM and up to 52 PSI 1 96 129.3 58 41" x 45" x 78"
5 90 GPM and up to 52 PSI 1 108 144.4 58 41" x 45" x 78"
5 90 GPM and up to 52 PSI 1 120 159.5 78 41" x 60" x 78"
5 90 GPM and up to 52 PSI 1 132 174.6 78 41" x 60" x 78"
5 90 GPM and up to 52 PSI 1 144 189.7 78 41" x 60" x 78"
5 90 GPM and up to 52 PSI 2 12 (24 kW) 46.5 38 41" x 30" x 51"
5 90 GPM and up to 52 PSI 2 24 (48 kW) 76.7 78 41" x 60" x 51"
5 90 GPM and up to 52 PSI 2 36 (72 kW) 106.7 78 41" x 60" x 64"
5 90 GPM and up to 52 PSI 2 48 (96 kW) 134.1 78 41" x 60" x 64"
5 90 GPM and up to 52 PSI 2 60 (120 kW) 171.5 78 41" x 60" x 78"
5 90 GPM and up to 52 PSI 2 72 (144 kW) 197.3 78 41" x 60" x 78"
5 120 GPM and up to 48 PSI 1 12 23.8 38 41" x 30" x 51"
5 120 GPM and up to 48 PSI 1 24 38.9 38 41" x 30" x 51"
5 120 GPM and up to 48 PSI 1 36 53.9 38 41" x 30" x 64"
5 120 GPM and up to 48 PSI 1 48 69.0 38 41" x 30" x 64"
5 120 GPM and up to 48 PSI 1 60 84.1 38 41" x 30" x 78"
5 120 GPM and up to 48 PSI 1 72 99.2 38 41" x 30" x 78"
5 120 GPM and up to 48 PSI 1 96 129.3 58 41" x 45" x 78"
5 120 GPM and up to 48 PSI 1 108 144.4 58 41" x 45" x 78"
5 120 GPM and up to 48 PSI 1 120 159.5 78 41" x 60" x 78"
5 120 GPM and up to 48 PSI 1 132 174.6 78 41" x 60" x 78"
5 120 GPM and up to 48 PSI 1 144 189.7 78 41" x 60" x 78"
5 120 GPM and up to 48 PSI 2 12 (24 kW) 46.5 38 41" x 30" x 51"
5 120 GPM and up to 48 PSI 2 24 (48 kW) 76.7 78 41" x 60" x 51"
5 120 GPM and up to 48 PSI 2 36 (72 kW) 106.7 78 41" x 60" x 64"
5 120 GPM and up to 48 PSI 2 48 (96 kW) 134.1 78 41" x 60" x 64"
5 120 GPM and up to 48 PSI 2 60 (120 kW) 171.5 78 41" x 60" x 78"
5 120 GPM and up to 48 PSI 2 72 (144 kW) 197.3 78 41" x 60" x 78"

*460/3/60 (additional voltages available; please consult factory)

Heat exchangers:40 and 60 gpm - 7.0 sq. ft. for single zone, except 96kW; 14 sq.ft. all other models

90 and 120 gpm - 21 sq. ft.

Connections: 40 and 60 gpm - 1-1/2" process, 1" water

90 gpm - 2" process, 1-1/2" water

120 gpm - 2-1/2" process, 1-1/2" water


For 650°F (343°C) systems, please contact Mokon for more information.

HTF350 Series
  1. Separate NEMA rated electrical enclosure with main power disconnect
  2. Powder coated cabinetry and electrical box
  3. Continuous flow cool oil reservoir
  4. Heavy-duty ball bearing casters
  5. Cooling water connections
  6. Centrifugal pump
  7. Easily accessible process connections
  8. Heater access panel
  9. Energy efficient insulated manifold with heaters
  10. High temperature safety shut-off switch
  11. Glycerin-filled pressure gauges
  12. Microprocessor-based controller
Additional Features:
  • NFPA 79 electrical safety standards
  • UL 508A labeled electrical sub-panel
  • Welded construction
  • Continuous flow cool oil reservoir
  • Warranty
    • 1 year on system
    • 1 year on solid state controllers
    • 3 years on custom controllers
    • 5 years on microprocessor controllers and safeties
Typical Flow Schematic
HF-2 Flow Schematic

Please consult factory for more information.

  • Additional cooling capacity
  • Alarms - audible and visual
  • Blown fuse indication
  • Control options - remote setpoint and re-transmission, communication ports, and much more
  • Cool down and automatic shut off via time delay relay
  • Heat exchanger flow control system
  • Heater selector switch (automatic)
  • Heater selector switch (manual) (standard on units greater than 24 kw)
  • High-temperature stainless steel braided hose
  • Leak containment cabinetry
  • NEMA 4, 4x, and 12
  • Other voltages, phases, frequencies
  • Overhead piping kit
  • Phase indicator
  • Process fluid purge via switch
  • Remote panels
  • Sealed reservoir
  • Seal-less magnetic drive pump
  • Sound insulation
  • Special paint and stainless steel cabinetry
  • Strainers
  • Thermometers
  • Welded designs

Features of Standard and Optional Controls

A variety of controls are available from Mokon to enhance the high performance of our systems. From solid state to microprocessor based, with communication capabilities to PLC type controls, Mokon can provide the type of control package right for your process.


Eurotherm 3216 Series

The Eurotherm 1/16 DIN (3216) microprocessor controller is operator friendly and easy-to-use. Standard features include a microprocessor PID controller for the highest accuracy in temperature control, a dual LCD display that shows set point and actual fluid temperature, and scrolling text messages that deliver plain language messages to let users know exactly what is happening to the process. There are optional 1/8 or 1/4 DIN controllers available, with high/low deviation alarm, remote set point and retransmission and serial communication. A five-year warranty comes standard with the controller.


Eurotherm 3216 Spec Sheet
Eurotherm 3200 Series Manual

Custom Controls

Mokon’s ability to meet customers’ specific requirements is seen not only in custom system designs, but also in controls. Our engineers can custom design a control package that meets your specific processing needs, from brand name controls, to direct computer/host machine interfacing. All of which can be expected with the same quality and durability that our customers expect from our complete line of temperature control systems.


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