Over the past 30 plus years HTD Heat Trace has become one of the world’s leading designers and manufacturers of industrial tank temperature maintenance systems.  Our thin, flexible and rugged heater technology has been used on tens of thousands of industrial installations around the world.  We have developed a broad range of heater configurations to tackle virtually any tank temperature maintenance or freeze protection application.  Heat-sensitive tanks and tank contents require special attention and our ultra-low watt density, surface mounted heaters are the most specifically designed and efficient product in the world for this difficult application.

Please call HTD today to discuss the specifics of your tank heating application and allow one of our engineers to ensure no factors have been overlooked and your project is supported with the appropriate equipment.

Tank Heating Anatomy
Tank Heating Product

PLASTIC TANK HEATING

SPX Plastic Tank Heater Pads

Freeze protection and temperature maintenance for heat-sensitive plastic tanks.

SPX Plastic Tank Header Pad

SPX420 Tank Heater Pad, 18″x60″, 420W, 120V

SPX Tank Heater Pads have been specifically designed for the temperature maintenance and freeze protection of heat-sensitive polyethylene and polypropylene tanks. No other product has ever been designed with this application specifically in mind. These ultra-low watt density heater pads are highly flexible, completely waterproof and include an industrial-grade adhesive backing for a quick and simple installation. The SPX heater pad utilizes a totally unique and proprietary multi-path heating element that cannot burn out while eliminating the hot-spots that single-path heaters are prone to encounter. The HTD Heat Trace SPX Tank Heater Pad: engineered for efficiency, long life and safety.

SPX210 Tank Heater Pad

SPX210 Tank Heater Pad, 18”x30”, 210W, 120V

SPX Heater Features:

  • Two convenient configurations: SPX420 (18”x60”, 420 Watts), SPX210 (18”x30”, 210 watts)
  • 120V heaters may be connected in series pairs for 240V applications
  • Extra safe operation with an ultra-low watt density of 0.39 watts/sq. in
  • Integral hi-limit cutout thermostat in each heater
  • Powerful adhesive backing on each heater for quick, simple, low-cost, one person installation
  • COMPLETELY WATERPROOF
  • Rugged epoxy/glass construction is highly corrosion resistant and extremely strong.
  • Highly flexible for use on tanks down to 30” diameter
  • Complete systems available with HTD Heat Trace tank heating controllers and accessories
  • Factory Mutual approval in The U.S.A. to IEEE standard 515 and in Canada to CSA standard C22.2 no.130-03 for use in the following areas:
    Unclassified (non-hazardous)
    Class I Div.2 Groups B, C, D
    Class II Div.2 Groups F,G
    Class III Div.2
Datasheet
Installation Instructions
Temperature Control
SPX Plastic Tank Heater Pad
SPX Plastic Tank Heater Pad
SPX Plastic Tank Heater Pad
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SPX Heater Pad Installation

FIBERGLASS & METAL TANK HEATING

EGLX™ Tank Heating Panels

Freeze Protection and Temperature Maintenance for Fiberglass & Metal Tanks

EGLX Heating Pad

The Eagle Tank Heating Panel was introduced in 1984 and since then, this unique tank heating system has been used on tens of thousands of Fiberglass(FRP) and steel tank heating applications around the world.

Eagle Tank Heating Panel systems have an unrivaled record of safe, reliable performance and many of the early installations are still operating successfully after 30 years.

EGLX HEATING PANEL FEATURES

  • Uniform, low watt density heating to avoid hot spots and burnout
  • Two convenient configurations: EGLX500 (18”x48”, 500 Watts), EGLX400 (18”x60”, 400 watts)
  • 120V and 240V options
  • 480V APPLICATIONS use 240V heaters in series pairs
  • May be installed with banding or wound directly into an FRP tank during construction
  • COMPLETELY WATERPROOF
  • Rugged epoxy/glass construction is highly corrosion resistant and extremely strong.
  • Complete systems available with HTD Heat Trace tank heating controllers and accessories
  • FM approval to IEEE standard 515 for use in the following areas:
    Unclassified (non-hazardous)
    Class I Div.2 Groups B, C, D
    Class II Div.2 Groups F, G
    Class III Div.2
Tank Heating Product
Datasheet
Installation Instructions
Temperature Control
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EGLX Heater Pad Installation

SPX-C-640 Heater Pad

Freeze Protection and Temperature Maintenance for Fiberglass & Metal Tanks

 

SPX-C 640 Heater Pad

SPX-C-640 Tank Heater Pad, 18”x60”, 640W, 120 or 240V

The SPX-C-640 Tank Heater Pad has been specifically designed for temperature maintenance and freeze protection of Fiberglass (FRP) tanks and metal tanks with heat-sensitive contents. The 0.60 watts/sq.in. (930 watts/sq.m.) power density of the SPX-C-640 heater pad ensures safety and long life for both the heater and tank. These heaters are highly flexible, completely waterproof and include an industrial-grade adhesive backing for the quickest and simplest of installations.

SPX-C-640 FEATURES

  • Uniform, low watt density heating specifically designed for safe operation on Fiberglass
  • Powerful adhesive backing on each heater for quick, simple, low-cost, one person installation
  • 120V and 240V options
  • COMPLETELY WATERPROOF
  • Rugged epoxy/glass construction is highly corrosion resistant and extremely strong.
  • Highly flexible for use on tanks down to 30” diameter
  • Complete systems available with HTD Heat Trace tank heating controllers and accessories
  • Factory Mutual approval in The U.S.A. to IEEE standard 515 and in Canada to CSA standard C22.2 no.130-03 for use in the following areas:
    Unclassified (non-hazardous)
    Class I Div.2 Groups B, C, D
    Class II Div.2 Groups F,G
    Class III Div.2
SPX-C 640 Heater Pad
SPX-C 640 Heater Pad
Datasheet
Installation Instructions
Temperature Control
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TEMPERATURE CONTROL

Accurate and application appropriate temperature control is vital to a successful tank heating system.  HTD Heat Trace has designed and manufactures a wide range of standard and custom tank heating controllers to suit any tank heating application.  We engineer and build our controllers in house which allows us to be very competitive with one-off controllers and highly specialized requirements.  Some commonly requested, special controller features we supply are:

  • Low liquid level interfaces
  • Re-transmission output
  • Spare/redundant system design
  • Alarms
  • Stainless steel enclosures
  • Hazardous area equipment
  • Disconnect switches
Class I, Div.2 Rated Controller with Disconnect Switch

Class I, Div.2 Rated Controller with Disconnect Switch

2XTC Microprocessor Based Controller

2XTC Microprocessor Based Controller

Digital Controller with Alarms and Stainless Steel Enclosure

Digital Controller with Alarms and Stainless Steel Enclosure

HTD 2XTC Logo

Microprocessor Based Tank Heating Controller

For most SPX, EGLX and SPX-C tank heater installations we recommend the use of the 2XTC controller.  This microprocessor based, indicating temperature controller has been specifically designed for the application of tank temperature maintenance and is the most versatile and convenient controller on the market today.

2XTC CONTROLLER FEATURES

  • Process temperature control with hi-limit protection
  • 100-277 VAC, 50/60 HZ, 30A
  • Use with up to 6 heaters
  • Push-on heater connections for quick installation
  • Simple operation and customizable presets
  • High temperature, low temperature, and low current alarms
  • Alarm contacts for communication with customer systems (NO or NC, selectable)
  • NEMA4X, IP66, polycarbonate enclosure
  • 4-20mA retransmission output
  • Includes two RTDs
  • Intertek (cETLus) approved for use in the USA and Canada
Microprocessor Based Tank Heating Controller
Microprocessor Based Tank Heating Controller
Datasheet
2XTC Manual
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