Ceramic Thermocouple Insulators
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-9 | $31.92 |
| 10-24 | $30.32 |
| 25-49 | $29.69 |
| 50-99 | $28.41 |
| 100-199 | $27.77 |
| 200+ | $27.13 |
Added to Your Shopping Cart
Configuration complete.
Please add to cart to keep it or exit the configuration
Please add to cart to keep it or exit the configuration
Failed to Save Configurations, Click on Configure Button Start Again
- Available in a Wide Range of Sizes
- Single Hole, Two Hole and Four Hole Insulators
- Service Temperature up to 1950°C(3540°F) with OMEGATITE™ 450
TRA-56414-6 Model Options
View all modelsEdit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.
*Highlighted options are not compatible. Please select a different combination.
Material
Maximum Rated Temperature
Outside Diameter
Inside Diameter
Length
Number of holes
Quantity per pack
Shape of insulator
Tolerances
The diameter and "out of roundness" of OMEGA'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.
OMEGATITE™ 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).
OMEGATITE™ 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).
OMEGATITE™ 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).
SINGLE HOLE ROUND INSULATORS
TWO HOLE ROUND INSULATORS
FOUR HOLE ROUND INSULATORS
The diameter and "out of roundness" of OMEGA'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.
OMEGATITE™ 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).
OMEGATITE™ 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).
OMEGATITE™ 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 | OMEGATITE™ 450 | OMEGATITE™ 350 | OMEGATITE™ 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
|  |
TWO HOLE ROUND INSULATORS
|  |
FOUR HOLE ROUND INSULATORS
|  |
