Duratherm Max

Duratherm MAX

Water Temperature Control SystemsWater Temperature Control Systems

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Mokon's Duratherm MAX circulating water temperature control system maximizes performance with temperatures up to 380°F (193°C) and system pressures up to 300 PSI (20.7 BAR). The Duratherm MAX is ideal for restrictive processes and high temperature water applications.

This Duratherm design features a stainless steel heater vessel that is designed and tested to ASME standards. The system utilizes nonferrous and stainless steel materials of construction and a seal-less magnetic drive turbine pump fitted with a stainless steel impeller (D4 Series) or an end suction centrifugal pump (D3 Series). The Duratherm MAX utilizes an inline heat exchanger that provides safe and dependable cooling of the process fluid and eliminates thermal shock, flashing to steam, mineral buildup and expansion noise.

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Specifications: D3 Series — Up to 330°F (166°C)*

Model Pump (Nominal) Flow Rate & Pressure Heating Capacity & Total Amps*
(9 kW)
Heating Capacity & Total Amps*
(18 kW)
Heating Capacity & Total Amps*
(24 kW)
Heating Capacity & Total Amps*
(36 kW)
Heating Capacity & Total Amps*
(48 kW)
Process Connection Supply/Drain Connection Cabinet Dimensions (L x W x H)
D3B 1-1/2 Hp 25 GPM @ 39 PSI 15 26 34 49 64 1" FNPT 1" FNPT 37" x 25" x 40"
D3C 2 Hp 40 GPM @ 43 PSI 16 27 35 50 65 1-½" FNPT 1" FNPT 37" x 25" x 40"
D3F 3 Hp 60 GPM @ 48 PSI 17 29 36 51 66 1-½" FNPT 1" FNPT 37" x 25" x 40"

*340°F (171°C) available - please contact Mokon for more information



Specifications: D4 Series — Up to 380°F (193°C)

Model Pump (Nominal) Flow Rate & Pressure (GPM @ 43 PSI) Flow Rate & Pressure (GPM @ 21 PSI) Heating Capacity & Total Amps* (12 kW) Heating Capacity & Total Amps* (24 kW) Process Connection Supply/Drain Connection Cabinet Dimensions (L x W x H)
D4B 1-1/2 Hp 4 6 20 35 1" FNPT 1/2" FNPT 50" x 28" x 39"
D4C 2 Hp 8 12 21 36 1" FNPT 1/2" FNPT 50" x 28" x 39"
D4F 3 Hp 15 20 22 37 1" FNPT 1/2" FNPT 50" x 28" x 39"
D4E 5-1/2 Hp 27 34 26 41 1-1/2" FNPT 1/2" FNPT 50" x 28" x 39"

*460 Volt, 3 Phase, 60 Hertz (for 230 Volt, double the listed amps).

Available in a variety of voltages and capacities. Please contact Mokon for more information.

Duratherm Max Side View
  1. Epoxy powder-coated cabinetry
  2. Microprocessor-based controller mounted in easily accessible panel
  3. NEMA 12 electrical enclosure with safety door disconnect switch
  4. Suction and discharge pressure gauges
  5. Air-cooled heat exchanger for rapid cooling (D4 Series only)
    Fluid-to-fluid steel heat exchanger (D3 Series only)
  6. Solenoid cooling valve
  7. Stainless steel sealless magnetic drive turbine pump (D4 Series)
    Ductile iron centrifugal pump (D3 Series)
  8. Horizontal stainless steel heater vessel designed and tested to ASME Code

Additional Features:
  • NFPA 79 electrical safety standards
  • UL 508A labeled electrical sub-panel
  • Small hold-up volume and energy-efficient heater design
  • Compact, sleek vertical design
  • Extended warranty:
    • 1 year on system
    • 3 years on microprocessor controller

Please consult factory for more information.

  • Alarms - audible and visual
  • Control options - remote setpoint and re-transmission, communication ports, and much more
  • Emergency "crash" cooling control
  • Heat remover design
  • Manifolds
  • NEMA 4, 4X, and 12
  • Other voltages, phases, frequencies
  • Stainless steel cabinets and components

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 3200 Series

The Eurotherm 1/8 DIN 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 controllers available with high/low deviation alarm, remote setpoint and retransmission, and serial communciation. A three-year warranty comes standard with the controller.



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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