Industrial Cartridge Heaters Modifications and Options
Cartridge Heaters Modifications & Options
Cartridge heaters can be easily specified to meet the demands of special applications. Simply select from a variety of standard options and features to customize the heater to your specific needs. For customized engineering or alternative options, contact your Chromalox sales representative for fast turnaround on your specifications.
- Leadwire Types
- End Seal Options
- Lead Options
- Mounting Options
- Built-In Thermocouple
Leadwire Types
| Description | Volts | (°F) (°C) Operating Temperature | |
|---|---|---|---|
| Mica Fiberglas® Insulation | 300V Standard 600V | 842 | 450 |
| Fluoropolymer | 300V 600V | 392 | 200 |
Seal Options
| Type | Description/Application |
|---|---|
| Epoxy | Epoxy seal available on above leads by voiding end of sheath and filling with epoxy to provide a moisture barrier. |
| Fluoro-polymer | A swaged-in seal that provides additional moisture resistance. |
| RTV | For applications where a moisture barrier is required. |
| Hermetic | Ceramic-to-metal seal is good for element temperatures up to 1000°F. Specify heater length beyond the seal. Metal portion of the seal overlaps the heater sheath by 3/16″. |
| MR SEOT2 | Meets UL FileSEOT2.SA 12768 |
End Seal Temperature Limits
| Description | (°F) (°C) Operating Temperature | |
|---|---|---|
| Air Set Cement Standard | 1000 | 538 |
| Epoxy Seal | 194 | 90 |
| Fluoropolymer Seal | 392 | 200 |
| RTV Seal | 284 392 |
140 200 |
| Hermetic Seal | 1000 | 538 |
| MR-SEOT2 | 374 | 190 |
End Seal Options
Hermetic Seal
Ceramic-to-metal seal is good for element temperatures up to 1000°F. Specify heater length beyond the seal. Metal portion of the seal overlaps the heater sheath ”. For washdown conditions.
Lead Options
Right Angle Flexible Leads
Strain Relief
Strain Relief supports leads to reduce bending, crimping, and breakage.
Flexible Stainless Steel Conduit
Flexible Stainless Steel Conduit provides leadwire protection from abrasion and sharp edges, and facilitates easier handling in harsh environments. Available in both straight and right angle confi gurations.
Protective Spring
Available in both straight and right angle configurations, the Protective Spring gives strong, yet flexible leadwire protection from bending, fatigue and flexing.
Metal Braid
Stainless Steel metal braid protects leadwire from abrasion and sharp edges, yet maintains flexibility and ease of installation. Metal braid is available in both straight and right angle configurations.
Ceramic Beads
Ceramic Bead insulation can be specified to protect leadwires from high ambient tem peratures up to 1200 F (649C). To order, specify ceramic beads length and additional lead length.
Threaded Post Terminals
Post Terminals provide a strong, secure connection to buss bars or ring/fork connectors. Available only on 5/8 and 3/4” diameter heaters.
Mounting Options
Threaded Fittings
Threaded fittings allow the heater to be easily installed into a threaded hole for immersion applications. Available with single or double threaded fi ttings. The fitting overlaps the cartridge heater sheath by 1/4″. Specify “brass”
| Threaded Fitting Sizes | ||
| Nom.Heater Diameter (In.) | NPT Size (In.) | Hex Size (In.) |
|---|---|---|
| 1/4 | 1/8 – 27 | 7/16 |
| 3/8 | 1/4 – 18 | 9/16 |
| 1/2 | 3/8 – 18 | 11/16 |
| 5/8 | 1/2 – 14 | 7/8 |
| 3/4 | 3/4 – 14 | 1-1/16 |
Mounting Flange
The mounting flange option allows for easy mounting and specific positioning
Wire Pull
The Wire Pull assists in heater removal.
Cartridge heaters can be easily specified to meet the demands of special applications. Simply select from a variety of standard options and features to customize the heater to your specific needs. For customized engineering or alternative options, contact your Chromalox sales representative for fast turnaround on your specifications.
- Leadwire Types
- End Seal Options
- Lead Options
- Mounting Options
- Built-In Thermocouple
Leadwire Types
| Description | Volts | (°F) (°C) Operating Temperature | |
|---|---|---|---|
| Mica Fiberglas® Insulation | 300V Standard 600V | 842 | 450 |
| Fluoropolymer | 300V 600V | 392 | 200 |
Seal Options
| Type | Description/Application |
|---|---|
| Epoxy | Epoxy seal available on above leads by voiding end of sheath and filling with epoxy to provide a moisture barrier. |
| Fluoro-polymer | A swaged-in seal that provides additional moisture resistance. |
| RTV | For applications where a moisture barrier is required. |
| Hermetic | Ceramic-to-metal seal is good for element temperatures up to 1000°F. Specify heater length beyond the seal. Metal portion of the seal overlaps the heater sheath by 3/16″. |
| MR SEOT2 | Meets UL FileSEOT2.SA 12768 |
End Seal Temperature Limits
| Description | (°F) (°C) Operating Temperature | |
|---|---|---|
| Air Set Cement Standard | 1000 | 538 |
| Epoxy Seal | 194 | 90 |
| Fluoropolymer Seal | 392 | 200 |
| RTV Seal | 284 392 |
140 200 |
| Hermetic Seal | 1000 | 538 |
| MR-SEOT2 | 374 | 190 |
End Seal Options
Hermetic Seal
Ceramic-to-metal seal is good for element temperatures up to 1000°F. Specify heater length beyond the seal. Metal portion of the seal overlaps the heater sheath ”. For washdown conditions.
Lead Options
Right Angle Flexible Leads
Strain Relief
Strain Relief supports leads to reduce bending, crimping, and breakage.
Flexible Stainless Steel Conduit
Flexible Stainless Steel Conduit provides leadwire protection from abrasion and sharp edges, and facilitates easier handling in harsh environments. Available in both straight and right angle confi gurations.
Protective Spring
Available in both straight and right angle configurations, the Protective Spring gives strong, yet flexible leadwire protection from bending, fatigue and flexing.
Metal Braid
Stainless Steel metal braid protects leadwire from abrasion and sharp edges, yet maintains flexibility and ease of installation. Metal braid is available in both straight and right angle configurations.
Ceramic Beads
Ceramic Bead insulation can be specified to protect leadwires from high ambient tem peratures up to 1200 F (649C). To order, specify ceramic beads length and additional lead length.
Threaded Post Terminals
Post Terminals provide a strong, secure connection to buss bars or ring/fork connectors. Available only on 5/8 and 3/4” diameter heaters.
Mounting Options
Threaded Fittings
Threaded fittings allow the heater to be easily installed into a threaded hole for immersion applications. Available with single or double threaded fi ttings. The fitting overlaps the cartridge heater sheath by 1/4″. Specify “brass”
| Threaded Fitting Sizes | ||
| Nom.Heater Diameter (In.) | NPT Size (In.) | Hex Size (In.) |
|---|---|---|
| 1/4 | 1/8 – 27 | 7/16 |
| 3/8 | 1/4 – 18 | 9/16 |
| 1/2 | 3/8 – 18 | 11/16 |
| 5/8 | 1/2 – 14 | 7/8 |
| 3/4 | 3/4 – 14 | 1-1/16 |
Mounting Flange
The mounting flange option allows for easy mounting and specific positioning
Wire Pull
The Wire Pull assists in heater removal.
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