Richards Thermocouple and Temperature Sensor Catalog 16

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Richards Ceramic Insulators are made from the highest quality raw materials and carefully blended for superior mechanical strength, re-
sistance to thermal shock and excellent insulating properties at high temperatures. Strict attention to hole size, wall thickness, and other details
result in minimum breakage during installation. Our oval type insulators are designed to allow two thermocouples to be installed in a single
protection tube. The part numbers below, and on the next two pages, describe the physical dimensions of the insulators
Example: The part number 823-O signifies an 8 gauge insulator, two holes, three inches long, oval in shape.
Insulators - Short, Cordierite - maximum temperature of 2012°F (1100°C)
Inches Millimeters
Construction
Number Gauge Holes Length O.D.
Hole
Dia.
Lbs/
1000 Length O.D.
Hole
Dia.
Kgs/
1000
811
811-S
813-S
1411
1411-S
1611
6 or 8
8
8
14
14
16
1
1
1
1
1
1
1
1
3
1
1
1
.340
.250
.250
.220
.140
.140
.204
.156
.156
.090
.080
.060
5.5
2.4
7.2
2.5
1.0
0.95
25.4
25.4
76.2
25.4
25.4
25.4
8.7
6.4
6.4
5.5
3.6
3.6
5.2
4.0
4.0
2.3
2.0
2.0
2.5
1.1
3.3
1.1
.50
.43
821
823
1421
1423
2021
2023
2223
3023
6 or 8
6 or 8
14
14
20
20
22
30
2
2
2
2
2
2
2
2
1
3
1
3
1
3
3
3
.500
.500
.250
.250
.150
.150
.120
.062
.188
.188
.080
.080
.042
.042
.030
.015
10.0
30.0
3.0
9.0
1.3
3.9
2.3
0.6
25.4
76.2
25.4
76.2
25.4
76.2
76.2
76.2
12.7
12.7
6.4
6.4
3.8
3.8
3.0
1.6
4.7
4.7
2.0
2.0
1.1
1.1
0.8
0.4
4.5
13.6
1.4
4.1
0.6
1.8
1.0
0.3
82-1/2-O
821-O
823-0
1021-O
1121-O
142-1/2-O
1421-O
1423-O
2021-O
2023-O
6 or 8
6 or 8
6 or 8
10
11
14
14
14
20
20
2
2
2
2
2
2
2
2
2
2
1/2
1
3
1
1
1/2
1
3
1
3
.50 x .28
.50 x .28
.50 x .28
.435 x .25
.35 x .22
.31 x .19
.31 x .19
.31 x .19
.17 x .12
.17 x .12
.188
.188
.188
.143
.110
.090
.090
.090
.042
.042
2.8
5.6
17.0
4.3
3.7
1.4
2.7
8.0
1.2
3.6
12.7
25.4
76.2
25.4
25.4
12.7
25.4
76.2
25.4
76.2
12.7 x 7.1
12.7 x 7.1
12.7 x 7.1
11.1 x 6.35
8.9 x 5.6
7.9 x 4.8
7.9 x 4.8
7.9x 4.8
4.3 x 3.0
4.3 x 3.0
4.7
4.7
4.7
3.7
2.8
2.3
2.3
2.3
1.0
1.0
1.3
2.5
7.7
1.9
1.7
0.6
1.2
3.6
0.5
1.6
841
1441
2041
8
14
20
4
4
4
1
1
1
.500
.315
.188
.140
.080
.040
8.5
5.0
2.0
25.4
25.4
25.4
12.7
8.0
4.7
3.6
2.0
1.0
3.9
2.3
0.9
Page 80 Phone: 617.527.4385 Fax: 617.964.3746 Email:
Insulators - Short