The Watlow HT FIREROD® cartridge heater is especially designed for
high temperature platen applications up to 1800°F (980°C). The HT
FIREROD high temperature cartridge heater utilizes the same
industry leading design principals used on all of Watlow's FIREROD
products. Taking the cartridge heater one step further enables the HT
FIREROD to withstand application temperatures up to 400°F (204°C) higher
than standard cartridge heaters.
There are certain differences in the HT FIREROD design which are important in high temperature applications:
- HT FIREROD cartridge heaters are specially constructed with an end
seal that is virtually airtight to reduce the effects of resistance wire
oxidation
- The high temperature sheath is treated to improve its emissivity for better heat transfer
