Metric FIREROD Metric Cartridge Heaters – Watlow
The Watlow FIREROD not only sets the industry standard for cartridge heaters, but continues to make improvements in construction and design. Among those improvements is the FIREROD metric cartridge heater, a variation of the FIREROD cartridge heater built to meet the exact specifications of the global market.
Like its counterpart, the metric FIREROD consistently outperforms other cartridge heaters with its design solutions such as its exclusive resistance wire winding and swaging process. These processes bring the resistance wire closer to the sheath and compacts the MgO insulation to maximize heat transfer. The end result is longer service life and better efficiency.
Features & Benefits – Metric FIREROD Metric Cartridge Heaters – Watlow
Nickel-chromium resistance wire
Assures even and efficient distribution of heat to the sheath because the wire is precisely wound and centered in the heater
Conductor pins
Ensures a trouble-free electrical connection because of the metallurgical bond between the conductor pins and resistance wire
Magnesium oxide insulation of specific grain and purity
Results in high dielectric strength and contributes to faster heat-up
Alloy 800 sheath
Resists oxidation and corrosion from many chemicals, heat or atmospheres
UL® and CSA approved flexible stranded wires
Insulates the wires to temperatures of 250°C (480°F)
Minimal spacing between the element wire and sheath
Results in lower internal temperatures and accommodates design with fewer or smaller heaters
specifications
| Material |
Maximum Operating Temperatures
F°
C°
|
Maximum Watt Densities
W/in2
W/cm2
|
||
|---|---|---|---|---|
| Alloy 800 | 1400 | 760 | 330 | 50 |
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