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Spiral Wound Gaskets
Spiral wound gaskets are constructed with alternating components of formed metal wire and soft filler material. This forms a very effective seal when under proper flange compression. The metal strip has a V–shaped crown which gives the spiral wound gaskets increased resiliency under varying conditions. The wire materials and fillers can vary in order to meet the compatibility requirements of different chemical environments. Gasket construction and dimensions can be modified to provide an effective seal when available compression bonds are limited. Spiral wound gaskets may have a centering ring and/or an inner ring. The outer centering ring aids in locating the gasket on the flange. The inner ring gives the gasket additional radial strength. It also helps to reduce flange erosion and protect the sealing element. Spiral wound gaskets are widely used throughout refineries, chemical processing plants, power generation, aerospace, and other applications requiring a strong, resilient seal. New applications continue to be added with increasing environmental regulations and industry requirements. Custom Gaskets - Spiral wound gaskets can be custom fabricated to meet a wide range of dimensional requirements. Call us with your specific application or specifications, and we will assist you in obtaining the spiral wound gasket to meet your needs
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| Flange Size (NPS) |
Outside Diameter of Gasket |
Inside Diameter of Gasket by Class |
Outside Diameter of Centering Ring by Class |
| Classes 150, 300, 400, 600 |
Classes 900, 1500, 2500 |
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
| 1/2" |
1.25 |
1.25 |
0.75 |
0.75 |
(2) |
0.75 |
(2) |
0.75 |
0.75 |
1.88 |
2.13 |
(2) |
2.13 |
(2) |
2.50 |
2.75
|
| 3/4" |
1.56 |
1.56 |
1.00 |
1.00 |
(2) |
1.00 |
(2) |
1.00 |
1.00 | 2.25 |
2.63 |
(2) |
2.63 |
(2) |
2.75 |
3.00
|
| 1" |
1.88 |
1.88 |
1.25 |
1.25 |
(2) |
1.25 |
(2) |
1.25 |
1.25 |
2.63 |
2.88 |
(2) |
2.88 |
(2) |
3.13 |
3.38
|
| 1-1/4" |
2.38 |
2.38 |
1.88 |
1.88 |
(2) |
1.88 |
(2) |
1.56 |
1.56 |
3.00 |
3.25 |
(2) |
3.25 |
(2) |
3.50 |
4.13
|
| 1-1/2" |
2.75 |
2.75 |
2.13 |
2.13 |
(2) |
2.13 |
(2) |
1.88 |
1.88 |
3.38 |
3.75 |
(2) |
3.75 |
(2) |
3.88 |
4.63
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| 2" |
3.38 |
3.38 |
2.75 |
2.75 |
(2) |
2.75 |
(2) |
2.31 |
2.31 |
4.13 |
4.38 |
(2) |
4.38 |
(2) |
5.63 |
5.75
|
| 2-1/2" |
3.88 |
3.88 |
3.25 |
3.25 |
(2) |
3.25 |
(2) |
2.75 |
2.75 |
4.88 |
5.13 |
(2) |
5.13 |
(2) |
6.50 |
6.63
|
| 3" |
4.75 |
4.75 |
4.00 |
4.00 |
(2) |
4.00 |
3.75 |
3.63 |
3.63 |
5.38 |
5.88 |
(2) |
5.88 |
6.63 |
6.88 |
7.75
|
| 4" |
5.88 |
5.88 |
5.00 |
5.00 |
4.75 |
4.75 |
4.75 |
4.63 |
4.63(1) |
6.88 |
7.13 |
7.00 |
7.63 |
8.13 |
8.25 |
9.25
|
| 5" |
7.00 |
7.00 |
6.13 |
6.13 |
5.81 |
5.81 |
5.81 |
5.63 |
5.63(1) |
7.75 |
8.50 |
8.38 |
9.50 |
9.75 |
10.00 |
11.00
|
| 6" |
8.25 |
8.25 |
7.19 |
7.19 |
6.88 |
6.88 |
6.88 |
6.75 |
6.75(1) |
8.75 |
9.88 |
9.75 |
10.50 |
11.38 |
11.13 |
12.50
|
| 8" |
10.38 |
10.13 |
9.19 |
9.19 |
8.88 |
8.88 |
8.75 |
8.50 |
8.50(1) |
11.00 |
12.13 |
12.00 |
12.63 |
14.13 |
13.88 |
15.25
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| 10" |
12.50 |
12.25 |
11.31 |
11.31 |
10.81 |
10.81 |
10.88 |
10.50 |
10.63(1) |
13.38 |
14.25 |
14.13 |
15.75 |
17.13 |
17.13 |
18.75
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| 12" |
14.75 |
14.50 |
13.38 |
13.38 |
12.88 |
12.88 |
12.75 |
12.75(1) |
12.50(1) |
16.13 |
16.63 |
16.50 |
18.00 |
19.63 |
20.50 |
21.63
|
| 14" |
16.00 |
15.75 |
14.63 |
14.63 |
14.25 |
14.25 |
14.00 |
14.25(1) |
(2) |
17.75 |
19.13 |
19.00 |
19.38 |
20.50 |
22.75 |
(2)
|
| 16" |
18.25 |
18.00 |
16.63 |
16.63 |
16.25 |
16.25 |
16.25 |
16.00(1) |
(2) |
20.25 |
21.25 |
21.13 |
22.25 |
22.63 |
25.25 |
(2)
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| 18" |
20.75 |
20.50 |
18.69 |
18.69 |
18.50 |
18.50 |
18.25 |
18.25(1) |
(2) |
21.63 |
23.50 |
23.38 |
24.13 |
25.13 |
27.75 |
(2)
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| 20" |
22.75 |
22.50 |
20.69 |
20.69 |
20.50 |
20.50 |
20.50 |
20.25(1) |
(2) |
23.88 |
25.75 |
25.50 |
26.88 |
27.50 |
29.75 |
(2)
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| 24" |
27.00 |
26.75 |
24.75 |
24.75 |
24.75 |
24.75 |
24.75(1) |
24.25(1) |
(2) |
28.25 |
30.50 |
30.25 |
31.13 |
33.00 |
35.50 |
(2) |
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Non-Asbestos Gasket Materials
| Garlock Style 2900 (STYLE 0G2900) |
| Aramid and mineral fiber; nitrile binder. Good for water, aliphatic hydrocarbons, oils, gasoline. Temperature – Maximum: 700° F, Minimum: –40° F, Continuous Maximum: 400° F. Maximum Pressure: 1000 psig. Sealability ASTM Fuel A 0.25 ml/hr. (ASTM F37B). Creep relaxation: 25% (ASTM F38B). Tensile strength 1500 psi (ASTM F152 across grain). Color: Black. |
| Size |
Part Number |
| 1/64"x60"x120" | 0G2900015x60x120
| | 1/32"x60"x120" | 0G2900031x60x120
| | *3/64"x60"x120"
| | 1/16"x60"x120" | 0G2900062x60x120
| | 3/32"x60"x120" | 0G2900093x60x120
| | 1/8"x60"x120" | 0G2900125x60x120 |
*Not an American Packing stock item. Special order. Note: Longest lengths stocked by American Packing are indicated. Shorter lengths always available.
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| BLUE-GARD® 3000 (STYLE 0G3000) |
| Aramid fiber; nitrile binder. Good for water, aliphatic hydrocarbons, oils, gasoline. Temperature – Maximum: 700° F, Minimum: –40° F, Continuous Maximum: 400° F. Maximum Pressure: 1000 psig. Sealability ASTM Fuel A0.2 ml/hr, nitrogen 0.6 ml/hr (ASTM F37B). Creep relaxation 21% (ASTM F38). Tensile strength 2250 psi (ASTM F152 across grain). Color: Blue. |
| Size |
Part Number |
| 1/64"x60"x180" | 0G3000015x60x180
| | *1/64"x150"x150"
| | 1/32"x60"x180" | 0G3000031x60x180
| | *1/32"x150"x150"
| | *3/64"x60"x180"
| | *3/64"x150"x150"
| | 1/16"x60"x180" | 0G3000062x60x180
| | *1/16"x150"x150"
| | 3/32"x60"x180" | 0G3000093x60x180
| | *3/32"x150"x150"
| | 1/8"x60"x180" | 0G3000125x60x180
| | *1/8"x150"x150"
| | 3/16"x60"x60" | 0G3000187x60x60
| | 1/4"x60"x60" | 0G3000250x60x60 |
*Not an American Packing stock item. Special order. Note: Longest lengths stocked by American Packing are indicated. Shorter lengths always available.
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| Plant Fibre Rubber Beater Saturated (Interface Solutions CS-301) |
| Made from cellulose fibre, cork, and styrene butadiene rubber (SBR). Atendency to swell moderately without disintegrating in water or oil makes this fibre sheet a dependable seal in services not involving aromatic fuels and solvents. Tensile strength minimum 700 PSI. Temperatures to 300°F. |
Plant Fibre Buna-N Beater Saturated (Interface Solutions CN-705)
Made from cellulose fibre, cork, and Buna-N. It is generally suitable for oil, gasoline, and water services. Combines high compressibility and high crush strength. Tensile strength minimum 1000 PSI. Temperatures to 300°F. |
Cork and Neoprene Medium Hardness (Interface Solutions DC-100)
A neoprene rubber sheet to which very fine cork particles have been added to create a homogeneous material with great compressibility combined with the resiliency of neoprene. A general purpose gasket and sealing material that has high cork content, minimum side flow. An excellent material for very narrow flange gaskets and for low bolt load applications. For oil, non-aromatic petroleum derivatives, fatty oils, and solvents (except chlorinated, aromatic, or ketone types). Shore AHardness 55 to 70. Temperatures to 275°F. |
Cork and Neoprene Soft (Interface Solutions DC-179)
Same type material as Style 0792, only slightly softer, giving greater compressibility. Shore AHardness 50 to 65. |
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