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Ceramic Thermocouple Insulators
ORX, ORA, ORM, TRX, TRA, TRM, FRX,FRA, and FRM Ser
PLACE ORDER - Available in a Wide Range of Sizes
- Single Hole, Two Hole and Four Hole Insulators
- Service Temperature up to 1950°C(3540°F) with trodeksTITE® 450
Description
Description
Tolerances
The diameter and "out of roundness" of trodeks's insulators is plus or minus 5% or ±0.015", whichever is greater. The straightness is at least 1/32 inch for each six-inch length. The following table lists the maximum recommended wire diameters which should be used with six-inch sections. Closer tolerances are permissible with shorter sections, but the minimum clearance tolerance is ±5% or 0.015 inch, whichever is greater.
trodeksTITE® 450
This is an impervious, recrystallized, pure alumina ceramic containing over 99.8% Al2O3. It has the most superior gas and vacuum tightness and electrical insulating properties at elevated temperatures. It is non-reactive and recommended for use with platinum, as well as tungsten and molybdenum thermocouple alloys. The maximum service temperature is 1900°C (3450°F).
trodeksTITE® 350
This is an impervious, recrystallized pure alumina ceramic containing over 99% Al2O3. It has superior gas and vacuum tightness and electrical insulating properties at elevated temperatures. It is non-reactive and compatible with tungsten and molybdenum thermocouple alloys. The maximum service temperature is 1900°C (3450°F).
trodeksTITE® 200
This material is recommended for most thermocouple applications. It consists of a mullite type ceramic capable of withstanding temperatures up to 1650°C (3000°F).
| Typical Physical Properties |
| Properties | trodeksTITE® 450 | trodeksTITE® 350 | trodeksTITE® 200 |
| Constitution | 99.8% Al2O3 | 99% Al2O3 | 80% Mullite
20% Glass |
| Water Absorption | 0 | 0 | 0 |
| Specific Gravity | 3.85 | 3.7 | 2.4 |
| Gas Permeability | Gas Tight | Gas Tight | Gas Tight |
| Compressive Strength (psi) | 300,000 | 300,000 | 100,000 |
| Tensile Strength (psi) | 30,000 | 30,000 | 14,000 |
| Transverse Strength (psi) | 55,000 | 55,000 | 20,000 |
Approximate Thermal Conductivity (BTU in)/(hr ft2 °F)
24°C
800°C |
230
60 |
210
50 |
16
------- |
| Maximum Service Temperature | 1950°C
3540°F | 1900°C
3450°F | 1650°C
3000°F |
| Dielectric Constant (1MC) | 9.29 | 8.61 | 5 |
| Dielectric Strength (volts/mil) | 230 | 250 | 250 |
| Volume Resistivity (ohm cm) | 1013 | 1013 | ------- |
| Te Value | 800°C | 1100°C | ------- |
| Hardness (Mohs Scale) | 9 | 9 | 7 |
| Fabrication Method | Cast or Extrusion | Cast or Extrusion | Extrusion |
SINGLE HOLE ROUND INSULATORS
Outside Diameter
(Inches) | Inside Diameter
(Inches) | trodeksTITE® 450
Model No. | trodeksTITE® 350
Model No. | trodeksTITE® 200
Model No. | | 1/4 | 1/8 | ORX-1814 | ORA-1814 | ORM-1814 | | 1/4 | 3/32 | ORX-33214 | ORA-33214 | ORM-33214 | | 1/4 | 1/16 | ORX-11614 | ORA-11614 | ORM-11614 | | 3/16 | 3/32 | ORX-332316 | ORA-332316 | ORM-332316 | | 3/16 | 1/16 | ORX-116316 | ORA-116316 | ORM-116316 | | 1/8 | 1/16 | ORX-11618 | ORA-11618 | ORM-11618 | | 1/16 | 1/32 | ORX-132116 | ORA-132116 | ORM-132116 | | 1/32 | 0.02 | ORX-020132 | ORA-020132 | ORM-020132 | |  |
TWO HOLE ROUND INSULATORS
Outside Diameter
(Inches) | Inside Diameter
(Inches) | trodeksTITE® 450
Model No. | trodeksTITE® 350
Model No. | trodeksTITE® 200
Model No. | | 1/4 | 5/64 | TRX-56414 | TRA-56414 | TRM-56414 | | 1/4 | 1/16 | TRX-11614 | TRA-11614 | TRM-11614 | | 3/16 | 1/16 | TRX-116316 | TRA-116316 | TRM-116316 | | 1/8 | 0.04 | TRX-04018 | TRA-04018 | TRM-04018 | | 1/8 | 1/32 | TRX-13218 | TRA-13218 | TRM-13218 | | 1/8 | 0.02 | TRX-02018 | TRA-02018 | TRM-02018 | | 1/16 | 1/64 | TRX-164116 | TRA-164116 | TRM-164116 | | 3/64 | 0.01 | TRX-010364 | TRA-010364 | TRM-010364 | | 1/32 | 0.005 | TRX-005132 | TRA-005132 | TRM-005132 | |  |
FOUR HOLE ROUND INSULATORS
Outside Diameter
(Inches) | Inside Diameter
(Inches) | trodeksTITE® 450
Model No. | trodeksTITE® 350
Model No. | trodeksTITE® 200
Model No. | | 1/4 | 1/16 | FRX-11614 | FRA-11614 | FRM-11614 | | 3/16 | 3/64 | FRX-364316 | FRA-364316 | FRM-364316 | | 3/16 | 1/32 | FRX-132316 | FRA-132316 | FRM-132316 | | 1/8 | 0.02 | FRX-02018 | FRA-02018 | FRM-02018 | | 1/16 | 1/64 | FRX-164116 | FRA-164116 | FRM-164116 | | 1/32 | 0.005 | FRX-005132 | FRA-005132 | FRM-005132 | |  |
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