Water and Water/Glycol System

Water and Water/Glycol System
  • Heat Water and Water/Glycol Solutions to 300°F (150°C)
  • UL NEMA 12 Electrical Enclosure Complete with Contactors, Temperature Safety Limit, Transformers and Pilot Light(s)
  • External Heat Exchanger (Optional)
  • 50 - 800 kW
  • 240 V, 480 V and 600 V, 3 -Phase, 60 Hz
  • Compact Footprint for Installation
  • 150# Welded Steel Construction
  • Long Life 0.475 in. (12.1 mm) dia. Copper Sheath Heating Elements
  • High Temperature Centrifugal Pump - rated to 300°F (150°C)
  • Electronic Digital Temperature and Process Control
  • Discharge Pressure Gauge

Chromalox MWS - Mid-Size Water/Glycol System - is engineered to operate to 300°F (150°C) with either water or water/glycol fluids. Its electric heating core assures responsive and precise temperature control in a space saving package. The system is suitable for a large range of heating needs with a compact design. The MWS operates in a closed loop system using a cold expansion tank (optional).


Chromalox MWS system is great for applications such as reactors, evaporators, dryers, platen presses, heat excangers, roll heating, or any jacketed kettles / vessels / tanks.

Hot water systems can be used in a variety of industries such as chemical, plastics, cosmetics, automotive, rubber, refining, pharmaceutical, non-woven / textiles/ fibers, aerospace, or any other industrial market.


Chromalox MWS systems are ruggedly constructed for industrial applications. The heavy-duty, steel support base features channel grooves for forklift transport. The heater chamber is fully welded and houses Chromalox brand, long-lasting heating elements. The panel is fully UL-listed and assembled in-house. The pump is air-cooled with a mechanical seal, rated to 300°F (150°C). The final assembly is fully-shop tested prior to shipment.

  • Electronic Process Control
  • Element Overtemperature Protection
  • Air-Cooled Mechanical Seal
  • Insulated Heating Chamber
  • Discharge Pressure Gauge
  • Compact Footprint
  • Fully Pre-wired & Tested
  • Centrifugal Pump
  • Temperature rating to 300°F (150°C)
  • 150# ANSI Flange Connection
  • Start / Stop buttons with Motor Starter
  • Pilot Lights for Power, Heater, & Pump


  • Precise process control
  • Protect elements and fluid from overheating
  • No external cooling needed
  • Maximize efficiency by minimizing heat loss
  • Confirm pump operating performance
  • Space saving design
  • Ready to operate on site
  • Minimize piping configuration
  • Covers most applications
  • Easy fit up to installed piping
  • Complete operating system
  • Visual indication of system operation


  • Electronic Solid State (SCR) Trim Power Control
  • Strainer
  • Powder Coated or Stainless Steel Side Coverings
  • Dedicated Fill Connection
  • NEMA 4 or 4X (Stainless) Construction
  • Class 1, Div 2 Hazardous Area Rating (with purge)
  • Panel Disconnect Switch
  • Heater On/Off Switch
  • Suction Pressure Guage
  • Inlet / Outlet 150# Gate Valves
  • Drain / Bleed Values
  • Digital Overtemperature Controller
  • Relief Valve
  • ASME Design & Certified, Section VIII, for 100 psi (7 bar) at 300°F (150°C)
  • Heat Exchanger (shipped loose for customer installation)
  • Expansion Tank (shipped loose for customer installation)
  • Liquid Level Switch for Expansion Tank

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