In addition to the standard designs, Durex offers a variety of special modifications which are available to customize the heater for your application.
Distributed Wattage - Resistance windings can be concentrated in specific areas of the heater for localized heat distribution.
Centerless Grinding - Precision grinding of the cartridge heater sheath provides tighter diameter tolerances when required.
Teflon Coating - Teflon coating can be provided on heater sheath for applications requiring chemical resistance.
Ground Leadwire -Separate color coded groundwire can be provided when required.
Special Connectors - Various connectors for power leads can be provided upon request.
When ordering Cartridge Heaters, specify the following:
--Overall Sheath Length
Cartridge Heater Care and Maintenance:
--Store heaters in a dry area, especially during periods of high humidity.
--Protect leads from abuse and abrasion.
--Maintain temperature control and keep accessories in good working condition to obtain correct operating conditions.
--All cartridge heaters have hygroscopic tendencies and can accumulate moisture is shipping and storage. Low heater insulation (less then 1 meg ohm) can be baked in an oven for several hours or started at low voltage to elimate moisture.