Water Systems

Duratherm Single Zone

Mokon's Duratherm cirulating water temperature control system maximizes performance with temperatures up to 250°F (121°C). The Duratherm design features an advanced heating canister and stainless steel diverter, which create a forced flow path for higher heat transfer rates, providing unmatched control efficiency and accuracy.

The Duratherm is built with nonferrous and stainless steel materials of construction, which provide unsurpassed corrosion resistance, including a stainless steel pump, housing, impeller, and shaft. The number of piping connections is reduced to ensure leak-free operation and the compact design makes it easy to move the Duratherm wherever it is needed most.

All Duratherm systems come standard with a cULus 508A labeled electrical sub-panel. All these features and more, combined with our extended warranty, make the Duratherm an easy choice for delivering precise and accurate temperature control.

  1. Single and dual zone configurations
  2. Compact, portable design
  3. Stainless steel pump, composite impeller and silicon-carbide seal
  4. Horizontal stainless steel heater canister with unique turbulent flow diverter
  5. Small hold-up volume and energy-efficient heater design
  6. 1/16 DIN non-proprietary microprocessor-based controller in easily accessible panel
  7. Low pressure safety shut-off switch
  8. Fluid high temperature safety shut-off switch
  9. Pressure relief valve
  10. Solenoid cooling valve
  11. Cast brass fluid connections securely mounted to cabinet
  12. Suction and discharge pressure gauges
  13. Removable panel for easy access to heater
  14. Heavy-duty removable casters for portability
  15. Powder-coated finish
  16. cULus 508A labeled electrical subpanel

Additional Features:

  • Small hold-up volume and energy-efficient heater design
  • Compact, sleek vertical design
  • Extended warranty:
    • 3 years on system
    • 5 years on microprocessor controller and safeties
    • Lifetime on seals, piping and canister

Unique stainless steel heating canister design

The Duratherm design features an advanced heating canister with stainless steel diverter, which generates a forced flow path over the heating elements for higher velocity and maximum turbulence - increasing heat transfer to improve efficiency and reduce scale build-up that can cause heater burn-out. This unique design provides customers unmatched control efficiency and accuracy, less down time and lower operating costs.

  • Alarms – audible and visual
  • Atmospheric and pressurized tanks
  • Closed loop circuitry
  • Common supply and drain connections
  • Control options – remote setpoint and re-transmission, communication ports
  • Cool down/automatic shut off via time delay relay
  • Cooling or chiller circuits
  • Door disconnect switch (standard on some models)
  • Emergency “crash” cooling control
  • Heat exchangers
  • Heat remover design
  • Magnetic drive pumps
  • Manifolds
  • Manual high/low heat selector switch (standard on some models)
  • Modulating valves
  • NEMA/Type 4, 4X, 7, 12 and X and Z purge designs
  • NFPA 79 electrical safety standards
  • Other voltages, phases, frequencies
  • Overhead piping kits
  • Power cord (standard on some models)
  • Pressure regulator
  • Process line fluid purge via air connection
  • Redundant heater contactor
  • Remote start/stop and control panels
  • Solid state contactors/relays and SCR
  • Stacking racks
  • Stainless steel cabinets, fluid circuits and components
  • TEFC motor
  • UL, CSA, CE and EAC certifications
  • Valve process bypass

Please consult factory for more information.

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.


Model Pump Flow Rate & Pressure Heating Capacity Process Connection Supply/Drain Connection Approx Dimensions
(L x W x H)
Shipping Weight (Approx. lbs.)
DT¾ Hp25 GPM @ 25 PSI9/18/241″ NPT1″ NPT32″ x 17″ x 28″150
DT¾ Hp25 GPM @ 25 PSI36/481″ NPT1″ NPT33″ x 17″ x 52″275
DT¾ Hp25 GPM @ 25 PSI721″ NPT1″ NPT33″ x 17″ x 52″300
DT¾ Hp25 GPM @ 25 PSI961″ NPT1″ NPT37″ x 25″ x 39″325
DR1 ½ Hp40 GPM @ 32 PSI9/18/241 ½″ NPT1″ NPT32″ x 17″ x 28″160
DR1 ½ Hp40 GPM @ 32 PSI36/481 ½″ NPT1″ NPT33″ x 17″ x 52″285
DR1 ½ Hp40 GPM @ 32 PSI721 ½″ NPT1″ NPT33″ x 17″ x 52″310
DR1 ½ Hp40 GPM @ 32 PSI961 ½″ NPT1″ NPT37″ x 25″ x 39″335
DN3 Hp60 GPM @ 34 PSI9/18/241 ½″ NPT1″ NPT32″ x 17″ x 28″170
DN3 Hp60 GPM @ 34 PSI36/481 ½″ NPT1″ NPT33″ x 17″ x 52″295
DN3 Hp60 GPM @ 34 PSI721 ½″ NPT1″ NPT33″ x 17″ x 52″320
DN3 Hp60 GPM @ 34 PSI961 ½″ NPT1″ NPT37″ x 25″ x 39″345
DO5 Hp80 GPM @ 38 PSI9/18/241 ½″ NPT1″ NPT32″ x 17″ x 28″180
DO5 Hp80 GPM @ 38 PSI36/481 ½″ NPT1″ NPT32″ x 17″ x 28″305
DO5 Hp80 GPM @ 38 PSI721 ½″ NPT1″ NPT33″ x 17″ x 52″330
DO5 Hp80 GPM @ 38 PSI961 ½″ NPT1″ NPT37″ x 25″ x 39″355
DP7 ½ Hp100 GPM @ 40 PSI or 120 GPM @ 35 PSI9/18/242″ NPT1″ NPT32″ x 17″ x 28″245 or 295
DP7 ½ Hp100 GPM @ 40 PSI or 120 GPM @ 35 PSI36/482″ NPT1″ NPT33″ x 17″ x 52″370 or 420
DP7 ½ Hp100 GPM @ 40 PSI or 120 GPM @ 35 PSI722″ NPT1″ NPT33″ x 17″ x 52″395 or 445
DP7 ½ Hp100 GPM @ 40 PSI or 120 GPM @ 35 PSI962″ NPT1″ NPT37″ x 25″ x 39″420 or 470

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