FGS-FGH-FWH

Supported Applications

The Omega FGS, FGH, and FWH series comprise high-temperature flexible heating tapes designed for surface heating applications. Constructed with double-braided fiberglass insulation and resistance wire elements, these heaters are engineered to provide long life and high performance in industrial settings requiring exposure temperatures up to 900°F (482°C). The product overview identifies the FGH series as suitable for conductive surfaces due to its heavy insulation design.

Operating Conditions & Performance

The series is rated for a maximum process temperature of 900°F (482°C) and operates on power supplies of 120 V or 240 V. The heating elements utilize 36-40 gage resistance wire, providing fast thermal response characteristics. Dielectric strength exceeds 2000 V.

Power density varies by series configuration:

• FGS Series (Standard Insulated): Nominal power of 8.6 W/in² (0.013 mm).
• FGH Series (Heavy Insulated): Nominal power of 8.6 W/in² (0.013 mm); suitable for conductive surfaces.
• FWH Series (Wide Heavy Insulated): Power densities range from approximately 4.9 to 5.3 W/in² depending on width, with specific values of 4.9, 5.2, and 5.3 W/in² documented for various widths.

Safety warnings specify that these heaters must not be immersed in liquid, used in hazardous locations, or operated without a temperature control device. The heater requires an appropriate heat sink (the device being heated) to operate safely.

Configuration Options

The series offers extensive configurability across dimensions, voltage ratings, and lead arrangements to accommodate specific installation requirements.

• Voltage Options: Models are available for 120 V or 240 V operation. Note that all 240 V versions are not supplied with plugs; the integral molded separable plug is standard on 120 V models unless otherwise specified.
• Sizes and Dimensions: Available widths include ½", 1", 1¼", 2½", and 3¼". Lengths range from 12 inches to 10 feet, with wattage scaling accordingly (e.g., FGS models ranging from 46 W at ½" x 12" up to over 1 kW for larger configurations).
• Lead Configuration: Standard configuration features lead wires emerging from opposite ends into separate sides of an integrally molded separable plug. An option is available by adding the suffix 'LSE' to the model number, which routes leads exiting from the same end.

Key Product Differences

The three series within this bundle differ primarily in insulation thickness and suitability for conductive surfaces:

• FGS Series (Standard Insulated): Designed with standard fiberglass insulation. The documentation explicitly states that FGS tape should not be used on a conductive surface.
• FGH Series (Heavy Insulated): Features heavy insulated construction, making it suitable for use on conductive surfaces while maintaining the 900°F maximum exposure rating and 8.6 W/in² power density of the standard series.
• FWH Series (Wide Heavy Insulated): Designed as wide tapes with heavy insulation, also suitable for conductive surfaces. This series offers lower nominal watts per square inch compared to FGS/FGH due to increased width and surface area distribution.