All Richards insulators are made from the highest quality raw materials carefully blended to obtain superior resistance to thermal shock, good insulating properties at high temperatures, and mechanical strength. Strict attention to hole size, wall thickness, and other details resulting in minimum breakage during installation.
STEATITE/CORDIERITE - Short
Insulators, or use to 1090ºC (2000ºF)
MULLITE - for use to 1590ºC (2900ºF)
ALUMINA - for use to 1900ºC (3450ºF)
Steatite/Cordierite
- Short Insulators, for use to 1090ºC (2000ºF)
SHORT INSULATORS UNDER 3 INCHES | ||||||||
Oval-Double Hole Insulators | ||||||||
Catalog No. |
Wire Gauge |
Two Hole | Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
82-1/2-O | 8 | 2 | 1/2 | .50 x.28 | .188 | 12.7 | 12.7 x 7.1 | 1.3 |
821-O | 8 | 2 | 1 | .50 x.28 | .188 | 25.4 | 12.7 x 7.1 | 2.5 |
823-O | 8 | 2 | 3 | .50 x.28 | .188 | 76.2 | 12.7 x 7.1 | 7.7 |
1021-O | 10 | 2 | 1 | .44 x.25 | .143 | 25.4 | 11.2 x 6.4 | 3.6 |
1121-O | 11 | 2 | 1 | .35 x.22 | .110 | 25.4 | 8.9 x 5.6 | 2.8 |
142-1/2-O | 14 | 2 | 1/2 | .31 x.19 | .090 | 12.7 | 7.9 x 4.8 | 2.3 |
1421-O | 14 | 2 | 1 | .31 x.19 | .090 | 25.4 | 7.9 x 4.8 | 2.3 |
1423-O | 14 | 2 | 3 | .31 x.19 | .090 | 76.2 | 7.9 x 4.8 | 2.3 |
2021-O | 20 | 2 | 1 | .31 x.19 | .042 | 25.4 | 4.3 x 3.0 | 1.0 |
2023-O | 20 | 2 | 3 | .17 x.12 | .042 | 76.2 | 4.3 x 3.0 | 1.0 |
Round-Single Hole Insulators | ||||||||
Catalog No. |
Wire Gauge |
One Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
811 | 8 | 1 | 1 | .340 | .205 | 25.4 | 8.7 | 5.2 |
811-S | 8 | 1 | 1 | .250 | .156 | 25.4 | 6.4 | 4.0 |
813-S | 8 | 1 | 3 | .250 | .156 | 76.2 | 6.4 | 4.0 |
1411 | 14 | 1 | 1 | .220 | .090 | 25.4 | 5.5 | 2.3 |
1411-S | 14 | 1 | 1 | .140 | .080 | 25.4 | 3.6 | 0.5 |
1611 | 16 | 1 | 1 | .140 | .080 | 25.4 | 3.6 | 1.5 |
Round-Double Hole Insulators | ||||||||
Catalog No. |
Wire Gauge |
Two Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
821 | 6 or 8 | 2 | 2 | .500 | .188 | 25.4 | 12.7 | 4.7 |
823 | 6 or 8 | 2 | 3 | .500 | .188 | 76.2 | 12.7 | 4.7 |
1421 | 14 | 2 | 1 | .250 | .080 | 25.4 | 6.4 | 2.0 |
1423 | 14 | 2 | 3 | .250 | .080 | 76.2 | 6.4 | 2.0 |
2021 | 20 | 2 | 1 | .150 | .080 | 25.4 | 3.8 | 1.1 |
2023 | 20 | 2 | 3 | .150 | .042 | 76.2 | 3.8 | 1.1 |
2223 | 22 | 2 | 3 | .120 | .042 | 76.2 | 3.0 | 0.8 |
3023 | 30 | 2 | 3 | .062 | .042 | 76.2 | 1.6 | 0.4 |
Round-Four Hole Insulators | ||||||||
Catalog No. |
Wire Gauge |
Four Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
841 | 8 | 4 | 1 | .500 | .140 | 25.4 | 12.7 | 3.6 |
1441 | 14 | 4 | 1 | .315 | .080 | 25.4 | 8.0 | 2.0 |
1421 | 20 | 4 | 1 | .188 | .040 | 25.4 | 4.7 | 1.0 |
Fishspine Insulators | |||||||
Catalog No. |
Wire Gauge |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | ||
3F | 8 | .540 | .540 | .240 | 13.7 | 13.7 | 6.1 |
7F | 8 | .400 | .400 | .156 | 10.2 | 10.2 | 4.0 |
8F | 8 | .260 | .260 | .152 | 6.6 | 6.6 | 3.9 |
12F | 10 | .200 | .200 | .092 | 5.1 | 5.1 | 2.3 |
14F | 11 | .170 | .170 | .058 | 4.3 | 4.3 | 1.7 |
20F | 14 | .125 | .125 | .056 | 3.2 | 3.2 | 1.4 |
24F | 14 | .110 | .110 | .055 | 2.8 | 2.8 | 1.4 |
Round-Single Hole Insulators* = Specify length | ||||||||
Catalog No. |
Wire Gauge |
One Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
141-* | 14 | 1 | * | .250 | .125 | * | 6.4 | 3.2 |
161-1 | 16 | 1 | 1 | .188 | .094 | 25.4 | 4.8 | 2.4 |
201-1 | 20 | 1 | 1 | .195 | .055 | 25.4 | 4.8 | 1.6 |
201-* | 20 | 1 | * | .188 | .062 | * | 4.8 | 1.6 |
241-1 | 24 | 1 | 1 | .125 | .058 | 25.4 | 3.2 | 1.0 |
241-* | 24 | 1 | * | .125 | .055 | * | 3.2 | 1.0 |
Round-Double Hole Insulators* = Specify length | ||||||||
Catalog No. |
Wire Gauge |
Two Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
142-* | 14 | 2 | * | .250 | .078 | * | 6.4 | 2.0 |
202-1/2 | 20 | 2 | 1/2 | .188 | .060 | 12.7 | 4.8 | 1.5 |
202-1 | 20 | 2 | 1 | .188 | .060 | 25.4 | 4.8 | 1.5 |
202-* | 20 | 2 | * | .188 | .060 | 76.2 | 4.8 | 1.5 |
222-* | 22 | 2 | * | .163 | .040 | * | 3.0 | 0.8 |
242-1/2 | 24 | 2 | 1/2 | .125 | .040 | 12.7 | 3.2 | 1.0 |
242-1 | 24 | 2 | 1/2 | .125 | 0.40 | 12.7 | 3.2 | 1.0 |
242-* | 24 | 2 | * | .125 | .040 | 12.7 | 3.2 | 1.0 |
262-* | 26 | 2 | * | .094 | .020 | * | 2.4 | .51 |
302-* | 30 | 2 | to 30 | .062 | .015 | to 762 | 1.6 | .04 |
Round-Four Hole Insulators* = Specify length | ||||||||
Catalog No. |
Wire Gauge |
Four Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
144-* | 14 | 4 | * | .335 | .098 | * | 8.5 | 2.5 |
204-1 | 20 | 4 | 1 | .188 | .047 | 25.4 | 4.8 | 1.5 |
204-* | 20 | 4 | * | .188 | .047 | * | 4.8 | 1.5 |
244-* | 24 | 4 | * | .125 | * | 3.2 | ||
264-* | 26 | 4 | * | .094 | .020 | * | 2.4 | .51 |
1.) Lengths stocked are multiples
of 6 inches (152.4 mm) up to 72 depending on the item,
except and 302 up to 30 inches (609.6
mm).
2.) Special lengths cut upon request. For Collar add "C"
to Catalog number.
Example: 202C-12
Oval-Double Hole Insulators* = Specify length | ||||||||
Catalog No. |
Wire Gauge |
Two Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
82A -*-O | 8 | 2 | 1/2 | .47 x .28 | .156 | * | 11.9 x 7.1 | 4.0 |
Round-Single Hole Insulators * = Specify length | ||||||||
Catalog No. |
Wire Gauge |
One Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
141A -* | 14 | 1 | * | .250 | .125 | * | 6.4 | 3.2 |
161A -1 | 16 | 1 | 1 | .188 | .094 | 25.4 | 4.8 | 2.4 |
201A -1 | 20 | 1 | 1 | .195 | .055 | 25.4 | 4.8 | 1.6 |
201A -* | 20 | 1 | * | .188 | .062 | * | 4.8 | 1.6 |
241A -1 | 24 | 1 | 1 | .125 | .058 | 25.4 | 3.2 | 1.0 |
241A -* | 24 | 1 | * | .125 | .055 | * | 3.2 | 1.0 |
Round-Double Hole Insulators* = Specify length | ||||||||
Catalog No. |
Wire Gauge |
Two Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
142A -* | 14 | 2 | * | .250 | .078 | * | 6.4 | 2.0 |
202A -1/2 | 20 | 2 | 1/2 | .188 | .060 | 12.7 | 4.8 | 1.5 |
202A -1 | 20 | 2 | 1 | .188 | .060 | 25.4 | 4.8 | 1.5 |
202A -* | 20 | 2 | * | .188 | .060 | 76.2 | 4.8 | 1.5 |
222A -* | 22 | 2 | * | .163 | .040 | * | 3.0 | 0.8 |
242A -1/2 | 24 | 2 | 1/2 | .125 | .040 | 12.7 | 3.2 | 1.0 |
242A -1 | 24 | 2 | 1/2 | .125 | .040 | 12.7 | 3.2 | 1.0 |
242A -* | 24 | 2 | * | .125 | .040 | 12.7 | 3.2 | 1.0 |
262A -* | 26 | 2 | * | .094 | .020 | * | 2.4 | .51 |
302A -* | 30 | 2 | to 30 | .062 | .015 | to 762 | 1.6 | .04 |
Round-Four Hole Insulators* = Specify length | ||||||||
Catalog No. |
Wire Gauge |
Four Hole |
Inches | Millimeters | ||||
Length | O.D. | Hole Dia. | Length | O.D. | Hole Dia. | |||
144A -* | 14 | 4 | * | .335 | .098 | * | 8.5 | 2.5 |
204A -1 | 20 | 4 | 1 | .188 | .047 | 25.4 | 4.8 | 1.5 |
204A -* | 20 | 4 | * | .188 | .047 | * | 4.8 | 1.5 |
244A -* | 24 | 4 | * | .125 | * | 3.2 | ||
264A -* | 26 | 4 | * | .094 | .020 | * | 2.4 | .51 |
1.) Lengths stocked are multiples
of 6 inches (152.4 mm) up to 72 depending on the item,
except 302A up to 30 inches (609.6
mm).
2.) Special lengths cut upon request. For Collar add "C"
to Catalog number.
Example: 202AC-12
© Copyright 2005 Arklay S. Richards Co., Inc. |