Richards Thermocouple and Temperature Sensor Catalog 16

Manufacturing, Engineering and Sales Since 1938

INS

Phone: 617.527.4385 Fax: 617.964.3746 Email: sales@asrichards.com

Insulators and Rods - Alumina and Mullite

Alumina Insulators and Rods - 99% - Maximum temperature of 3450°F (1900°C)

Inches

Millimeters

Hole Dia.

Hole Dia.

Number

Gauge

Holes

Length

O.D.

Length

O.D.

Construction

141A-* 142A-* 144A-* 161A-* 201A-* 202A-* 202A-1/2 204A-1 204A-* 221A-* 222A-* 242A-1/2

14 14 14 16 20 20 20 20 20 22 22 24 24 24 24 26 26 30

1 2 4 1 1 2 2 4 4 1 2 2 2 2 2 2 4 2

* * * * * * 1/2 1 * * * 1/2 1

.250 .250 .335 .188 .188 .188 .188 .188 .188 .156 .163 .125 .125 .125 .125 .094 .094 .062

.125 .078 .098 .094 .060 .060 .060 .047 .047 .090 .040 .040 .040 .040 .031 .020 .020 .015

* * * * * *

6.4 6.4 8.5 4.8 4.8 4.8 4.8 4.8 4.8 4.0 4.1 3.2 3.2 3.2 3.2 2.4 2.4 1.6

3.2 2.0 2.5 2.4 1.5 1.5 1.5 1.2 1.2 2.3 1.0 1.0 1.0 1.0 .79 0.5 0.5 0.4

Plain, full length

Collar, add “C” to part number

12.7 25.4

* * *

Four Hole Two Hole One Hole

12.7 25.4

242A-1 242A-* 244A-* 262A-* 264A-* 302A-*

* * * * *

* * * * *

82A-*-O

8

2

*

.45x.26

.156

*

11.4x6.6

4.0

Alumina Rods - Insulators without holes (may be used as spacers)

SA804

Solid Round

4”

.500

0

101.6

12.7

0

SA803-O Solid

Oval

3”

.50x.28

0

76.2

12.7x7.1

0

Mullite Insulators - Maximum temperature of 2900°F (1590°C)

Inches

Millimeters

Hole Dia.

Hole Dia.

Number

Gauge

Holes

Length

O.D.

Length

O.D.

Construction

141-* 142-* 144-* 162-* 201-* 202-* 202-1/2 204-1 204-* 241-* 242-1/2

14 14 14 16 20 20 20 20 20 24 24 24 24 26 26 30

1 2 4 2 1 2 2 4 4 1 2 2 2 2 4 2

* * * * * * 1/2 1 * * 1/2 1

.250 .250 .335 .188 .188 .188 .188 .188 .188 .125 .125 .125 .125 .094 .094 .062

.125 .078 .098 .094 .060 .060 .060 .047 .047 .062 .040 .040 .040 .020 .020 .015

* * * * * *

6.4 6.4 8.5 4.8 4.8 4.8 4.8 4.8 4.8 3.2 3.2 3.2 3.2 2.4 2.4 1.6

3.2 2.0 2.5 2.4 1.5 1.5 1.5 1.2 1.2 1.6 1.0 1.0 1.0 0.5 0.5 0.4

Plain, full length

Collar, add “C” to part number

12.7 25.4

* *

Four Hole Two Hole One Hole

12.7 25.4

242-1 242-* 262-* 264-* 302-*

* * * *

* * * *

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