Oil Systems

HTF NPS Series

Mokon's HTF NPS Series heat transfer fluid system maximizes performance with temperatures from 125°F to 400°F (52°C to 204°C). Whether your process requires positive pressure (no leaks present) or negative pressure (to stop a leak), HTF NPS Series provides the most efficient means of temperature control.

Keeps Production Up and Running

Even a minor circuit leak from stress cracks or bad O-rings can stop operations, but with the Mokon HTF NPS Series positive and negative pressure temperature control system, you can finish the production run without the nuisance of a leak or the costly interruption of a repair.

Versatile

Whether your process requires positive pressure (no leaks present) or negative pressure (to stop a leak), HTF NPS Series provides the most efficient means of temperature control. By incorporating a venturi jet pump and a uniquely designed reservoir, you are provided with a self-supporting means of accurate temperature control up to 400°F (204°C) in a positive or negative pressure condition.

Easy to Use

Designed to be used in the same manner as our Duratherm NPS water system, the system requires no special piping, hoses or utilities. By simply moving a three-way flow control valve on the back of the cabinet, the system is changed from a positive pressure to a negative pressure system in an instant. The system's reservoir acts as a fluid supply source and air separation device, making the venting of the system automatic.

Easily removable cabinet panels provide access to internal components, making routine maintenance and adjustments simple and fast.

  • Single zone configurations
  • Three-way flow control valve to adjust system from positive pressure to negative pressure
  • Heating and cooling design standard
  • System reservoir – fluid supply source and air separation device
  • Vertical stainless steel seal-less pump
  • Venturi jet pump
  • TEFC (IP54 Rating) motor that meets/exceeds NEMA Premium Efficiency levels
  • Horizontal low watt density heaters
  • Energy efficient insulated heater manifold with stainless steel heating elements
  • Cool oil reservoir design, utilizing a continuous flow heat exchanger for increased cooling efficiency which eliminates thermal shock and provides trim cooling
  • 1/16 DIN non-proprietary microprocessor-based controller in easily accessible panel
  • By-pass cooling design with heat exchanger and expansion/fill tank
  • Low fluid level safety shut off
  • Glycerin filled pressure gauge
  • Low pressure safety shut-off switch
  • Fluid high temperature safety shut-off switch
  • Automatic air purge
  • NEMA/Type 1 electrical enclosure
  • Sight glass
  • Main power safety door disconnect switch
  • Redundant heater contactor
  • Y type strainer (shipped loose)
  • Heavy-duty ball bearing casters for portability
  • Powder-coated carbon steel cabinet
  • cULus 508A labeled electrical subpanel

Additional Features:

  • Warranty
    • 1 year on system
    • 5 years on standard microprocessor controller

"Negative" Benefits

Being negative isn't always a bad thing.


With Mokon's HTF NPS Series, negative pressure creates a vacuum, essentially pulling air and oil out of the mold instead of pushing it through the system. There are many benefits with this method, including:


  • Repairs can be deferred until a more convenient time.
  • The risk of hot fluid spray is reduced, improving worker safety.
  • Less downtime means manpower and equipment are maximized, increasing productivity.
  • Alarms – audible and visual
  • Control options – remote setpoint and re-transmission, communication ports
  • Cool down/automatic shut off via time delay relay
  • Cooling only designs
  • Emergency "crash" cooling control
  • Emergency stop
  • Heat exchanger flow control
  • High/low heat switch for 12 kW units and higher
  • Heating only designs
  • High temperature rated hoses
  • Increased cooling and heating capacities
  • Inline heat exchangers
  • Magnetic drive pumps
  • NEMA/Type 4, 4X, 7, and 12
  • Nitrogen purge
  • Other voltages, phases, frequencies
  • Overhead piping kits
  • Phase monitor
  • Process fluid purge via air connection
  • Remote start/stop and control panels
  • Solid state contactors/relays and SCR
  • Stainless steel cabinets, fluid circuits and components
  • Strainers (additional)
  • Tank low level indication and system shutdown
  • Thermocouple with selector switch
  • Thermometers
  • Timers
  • UL, CSA, CE and EAC certifications
  • Valved process bypass via metering globe

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 Horsepower, Flow Rate & Pressure # of Zones Heating Capacity (kW) Total Amps1 @ 460/3/60 Cooling Heat Exchanger
Connections
Process (FNPT) Water (FNPT)
Reservoir Volume (Gallons) Approx. Dimensions (L x W x H) Shipping Weight (Approx. lbs.)
H4N 5 Hp, 10 GPM up to 60 PSI 1 12 21.1 7.0 sq. ft. 3/4″ 1″ 38 41″ x 30″ x 51″ 620
H4N 5 Hp, 10 GPM up to 60 PSI 1 24 36.1 7.0 sq. ft. 3/4″ 1″ 38 41″ x 30″ x 51″ 670
H4N 5 Hp, 10 GPM up to 60 PSI 1 36 51.2 7.0 sq. ft. 3/4″ 1″ 38 41″ x 30″ x 51″ 730
H4N 5 Hp, 10 GPM up to 60 PSI 1 48 66.2 7.0 sq. ft. 3/4″ 1″ 38 41″ x 30″ x 62″ 825
H5N 5 Hp, 20 GPM up to 50 PSI 1 12 21.1 7.0 sq. ft. 1″ 1″ 38 41″ x 30″ x 51″ 620
H5N 5 Hp, 20 GPM up to 50 PSI 1 24 36.1 7.0 sq. ft. 1″ 1″ 38 41″ x 30″ x 51″ 670
H5N 5 Hp, 20 GPM up to 50 PSI 1 36 51.2 7.0 sq. ft. 1″ 1″ 38 41″ x 30″ x 51″ 730
H5N 5 Hp, 20 GPM up to 50 PSI 1 48 66.2 7.0 sq. ft. 1″ 1″ 38 41″ x 30″ x 62″ 825

  1. To calculate FLA for other voltages, multiply the above amperages by: 2.21 for 208 volt; 2.00 for 230 volt; and 0.80 for 575 volt