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Ceramic Thermocouple Insulators
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-9 | $35.20 |
| 10-24 | $33.44 |
| 25-49 | $32.74 |
| 50-99 | $31.33 |
| 100-199 | $30.62 |
| 200+ | $29.92 |
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- 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
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*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
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TWO HOLE ROUND INSULATORS
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FOUR HOLE ROUND INSULATORS
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Rated 1 out of
5
by
lsanchez from
Not Good - Undersized
Bought for insulating a thermocouple. Good material for the price. However, when trying to place thermocouples, we found (through measurements with plug gauges) that these were undersized. Would not buy again.
Date published: 2017-06-01
Rated 5 out of
5
by
Mike37 from
Excellent high temp TC insulators
I have used this product in the lab for years in a high temp environment reaching more than 1500 C. Excellent product.
Date published: 2019-02-07
Rated 5 out of
5
by
Chris Crocker from
Longtime Customer
We have been using Omega products for years. They are very reliable.
Date published: 2024-05-10
Rated 5 out of
5
by
Purchasing Manager from
The best ceramic insulator tubes we've used.
The cost and performance of these insulators is unmatched.
Date published: 2023-02-09
Rated 3 out of
5
by
Hardy from
NO suggestions on how to cut this
I wrote an email for help cutting these off and got unreasonable answers.
I recommend you sell the dremmel tool to use to cut these as part of your offerings.
Date published: 2018-11-14
Rated 5 out of
5
by
agaddy from
Consistently good product.
Never had any problem using this tube for TC placement over many years of experience.
Date published: 2018-06-06
Dear; We have received a ceramic single round insulator that calls ORX-132116-24 which was produced by Omega, There is a number as PCDMO02638 on the product label. We are trying to ensure traceability with using this number. What is this number.
Thank you for your inquiry. The only number you should reference is the model number ORX-132116-24. The other number is an internal reference number and it can be ignored.
Date published: 2019-07-18
Do you have a CAD model/drawings available for these? I am trying to check if the 2 diagonal holes on the FRA-02018-6 will line up with the 2 holes on the TRA-02018-6.
Unfortunately, we do not provide CAD, Step, or any 3D model of this product. If you need a possible drawing, please send an email to temp@dwyeromega.com so we can reach to our Manufacturing department
Date published: 2024-06-12