Ceramic Thermocouple Insulators

ORX, ORA, ORM, TRX, TRA, TRM, FRX,FRA, and FRM Series

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^$ 12.50 ORX-1814-18

•	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
View related products - Thermocouples

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/ft2/hr/°F/in) 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

To Order (Specify Model Number)

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Part Number	Availability	Price	Description	RoHS	Qty.

Example partnumbers are shown below. Use the Part Number Builder below this table for your exact configuration.

ORX-1814-6		$30.00	CERAMIC SINGLE HOLE ROUND INSULATOR, 6 inches, 5PK		qty.

ORX-1814-12		$41.00	CERAMIC SINGLE HOLE ROUND INSULATOR, 12 inches, 5PK		qty.

ORX-1814-18		$12.50	CERAMIC SINGLE HOLE ROUND INSULATOR, 18 inches		qty.

ORX-1814-24		$17.00	CERAMIC SINGLE HOLE ROUND INSULATOR, 24 inches		qty.

ORX-1814-36		$28.00	CERAMIC SINGLE HOLE ROUND INSULATOR, 36 inches		qty.

† All dollar amounts on this site are shown in US currency.

Note: All stock insulators are six inches in length. Other sizes, styles and lengths by quotation.

Part Number Builder

(1)		(2)		(3)
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Option Descriptions

(1)

Model Code(see part number tables above)

Select
ORX for OMEGATITE® 450 / Single Hole
ORA for OMEGATITE® 350 / Single Hole
ORM for OMEGATITE® 200 / Single Hole
TRX for OMEGATITE® 450 / 2 Hole
TRA for OMEGATITE® 350 / 2 Hole
TRM for OMEGATITE® 200 / 2 Hole
FRX for OMEGATITE® 450 / 4 Hole
FRA for OMEGATITE® 350 / 4 Hole
FRM for OMEGATITE® 200 / 4 Hole

(2)

Dimension

Select
1814 for Inside Dia. 1/8in. Outside Dia. 1/4in.
33214 for Inside Dia. 3/32in. Outside Dia. 1/4in.
11614 for Inside Dia. 1/16in. Outside Dia. 1/4in.
332316 for Inside Dia. 3/32in. Outside Dia. 3/16in.
116316 for Inside Dia. 1/16in. Outside Dia. 3/16in.
11618 for Inside Dia. 1/16in. Outside Dia. 1/8in.
132116 for Inside Dia. 1/32in. Outside Dia. 1/16in.
020132 for Inside Dia. 0.02in. Outside Dia. 1/32in.
56414 for Inside Dia. 5/64in. Outside Dia. 1/4in.
04018 for Inside Dia. 0.04in. Outside Dia. 1/8in.
13218 for Inside Dia. 1/32in. Outside Dia. 1/8in.
02018 for Inside Dia. 0.02in. Outside Dia. 1/8in.
164116 for Inside Dia. 1/64in. Outside Dia. 1/16in.
010364 for Inside Dia. 0.01in. Outside Dia. 3/64in.
005132 for Inside Dia. 0.005in. Outside Dia. 1/32in.
364316 for Inside Dia. 3/64in. Outside Dia. 3/16in.
132316 for Inside Dia. 1/32in. Outside Dia. 3/16in.

(3)

Length

Select
6 for 6 inches 5PK
12 for 12 inches 5PK
18 for 18 inches
24 for 24 inches
36 for 36 inches

NOTE: All combinations may not be valid, check spec sheet for valid part numbers.

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