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SL Series Hot Oil Heating Systems

SL SERIES: CUSTOM ENGINEERED ELECTRIC HOT OIL SYSTEMS 

The SL Series of Custom Engineered, Thermal Fluid Electric Hot Oil System delivers the Safe Reliable Performance HEAT is known for in a packaged system that is precisely engineered to your process. 

Our engineering team will work with you to design a system based on a specific and unique process or application. SL Series systems typically include a Circulating Pump, Electric Heater, Expansion Tank, Cooling circuit, and Control Panel. Design capability for maximum operating temperatures up to 750°F. 

SL Series systems are constructed with either Carbon Steel or Stainless-Steel wetted materials, insulated with Non-Wicking Cellular Glass Insulation, and packaged, skid-wired, and assembled on a drip-proof, seal-welded plate-and-channel fluid containment base.  

HEAT offers four distinct levels of customization, ranging from minimal customization to fully built-to-specification designs. Each unique system undergoes a Factory Acceptance Test in accordance with HEAT standard practice prior to shipment. 

Why Custom Design?
  • Maximum Operating Temperatures up to 750°F
  • Heating Capacities from 20kW to 600kW and Higher
  • Up to 600 VAC, 3-Phase, 50/60Hz Power Capabilities
  • General Purpose and Hazardous Area Designs
  • Designs Temperatures of 550°F, 600°F, 650°F and 750°F 
  • 4 Levels of Customization
  • Indoor/Outdoor installation
  • Heat Only & Heat/Cool Designs Available
  • Fluid Maintenance & Sampling Ports
  • Seller standard or Custom Paint Colors 
  • Centrifugal and positive displacement (PD) options
  • Mechanical and Seal-less designs
  • Air- and water-cooled pump designs
  • Single and dual pump configurations 
  • Vertical or horizontal orientations
  • Extended and non-extended terminal housings
  • ASME U/UM Stamps available 
  • Integral and modular designs
  • TEMA / ASME exchanger designs available
  • Air-to-Oil and Water-to-Oil cooling options available
  • Proportional and on/off control 
  • Top mounted and remote mounted designs
  • Single and double expansion line designs
  • Non-pressurized and pressurized configurations
  • ASME U/UM designs available 
  • Welded and flanged construction
  • Carbon steel and stainless steel available
  • ASME B31 Piping Materials 
  • Skid mounted and remote mounted control panels
  • Digital PID Temperature Control or Remote Operation Control
  • Configurations for external control from PLC, DCS or other external control 
  • NEMA 4, NEMA 4X, NEMA 12, NEMA 7, Class I, Division I and Class I, Division 2 
  • ASME U/UM, ASME B31.3, CRN, TEMA
  • NFPA 87, NFP70, NFPA 79, NEC, UL, cUL, CSA 
  • MINIMAL - CATEGORY 1: REFERENCE ONLY
    • Drawings are supplied for reference as our engineering team completes the design and your system is fabricated
  • MODERATE - CATEGORY 2: DRAWING APPROVAL
    • Drawings are sent for your approval before fabrication begins
  • HIGH - CATEGORY 3: FULL APPROVAL
    • High level of input into drawings and components, with approval at every phase
  • COMPLETE - CATEGORY 4: BUILT-TO-SPECIFICATION AND FULL APPROVAL
    • Complete input to meet your plant specifications, required submittal documentation, and/or preferred brand of components. Approval at every phase. 
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Heat Brand Promise Black Background, Safe, Reliable, Performance

Heat Systems: Safe by Design

Learn more about our Standard Design Practices for Custom-Engineered Hot Oil Systems
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