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Ceramic Thermocouple Insulators

$53.80

Item# FRA-02018-12

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $53.80
10-24 $51.11
25-49 $50.03
50-99 $47.88
100-199 $46.81
200+ $45.73

In stock

Lead Time ( If not in Stock): 4 weeks

Ceramic Thermocouple Insulators FRA-02018-12 FRA-02018-12
  • 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

Product info

Type of Sensor
Industrial probe
Process Connection
Direct Contact
Process Connection Size
Not Applicable
Probe Diameter
0.020 in
Insulation
OMEGATITE® 350 / Four Hole
Wire Length
12 in
Termination Connection Type
Not Applicable
Additional Feature 1
OMEGATITE™ 350/4 Hole
Additional Feature 2
OD 1/8 in
Application of Sensor
Air/Gas Temperature, General Purpose, Liquid Temperature

Product Specs

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).


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
Outside Diameter
(Inches)
Inside Diameter
(Inches)
OMEGATITE™ 450
Model No.
OMEGATITE™ 350
Model No.
OMEGATITE™ 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)
OMEGATITE™ 450
Model No.
OMEGATITE™ 350
Model No.
OMEGATITE™ 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)
OMEGATITE™ 450
Model No.
OMEGATITE™ 350
Model No.
OMEGATITE™ 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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