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High-Temperature Metallic Pipe Gaskets
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Gasket Shown with a Flat-Surface Pipe Flange | Gasket Shown with a Raised-Surface Pipe Flange |
Also known as spiral-wound gaskets, these have a 1/8” thick carbon steel outer ring and a 304 stainless steel sealing element with a graphite-based filler. The carbon steel construction provides structural strength. These gaskets can be used with both flat-surface and raised-surfaces pipe flanges; they fit the surface inside the bolt holes and do not interfere with the bolt connection.
Plain-Back Gaskets for ANSI Flanges
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For ANSI Class 1500 |
Gaskets for ANSI flanges are sized so all gasket specifications meet ANSI standards.
For ANSI Class 1500—Gaskets for ANSI Class 1500 flanges are compatible with extreme-pressure pipe flanges.
Inner Ring ID—Gaskets with an inner ring prevent flange erosion.
Sealing Element | 1/8" Thick | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Pipe Size | ID | OD | OD | Wd. | Inner Ring ID | Max. Pressure | Temp. Range, ° F | Material | Sealing Element Material | Sealing Element Filler Material | Inner Ring Material | Specs. Met | Each | |||
For ANSI Class 1500 | ||||||||||||||||
| 1/2 | 3/4" | 2 1/2" | 1 1/4" | 0.175" | 0.56" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K611 | 000000 | ||
| 3/4 | 1" | 2 3/4" | 1 9/16" | 0.175" | 0.81" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K612 | 00000 | ||
| 1 | 1 1/4" | 3 1/8" | 1 7/8" | 0.175" | 1.06" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K613 | 00000 | ||
| 1 1/4 | 1 9/16" | 3 1/2" | 2 3/8" | 0.175" | 1.31" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K614 | 00000 | ||
| 1 1/2 | 1 7/8" | 3 7/8" | 2 3/4" | 0.175" | 1.63" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K615 | 00000 | ||
| 2 | 2 5/16" | 5 5/8" | 3 3/8" | 0.175" | 2.06" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K616 | 00000 | ||
| 2 1/2 | 2 3/4" | 6 1/2" | 3 7/8" | 0.175" | 2 1/2" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K617 | 00000 | ||
| 3 | 3 5/8" | 6 7/8" | 4 3/4" | 0.175" | 3.10" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K628 | 00000 | ||
| 4 | 4 5/8" | 8 1/4" | 5 7/8" | 0.175" | 3.85" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K621 | 00000 | ||
| 5 | 5 5/8" | 10" | 7" | 0.175" | 4.90" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K622 | 00000 | ||
| 6 | 6 3/4" | 11 1/8" | 8 1/4" | 0.175" | 5.80" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K623 | 000000 | ||
| 8 | 8 1/2" | 13 7/8" | 10 1/8" | 0.175" | 7 3/4" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K624 | 000000 | ||
| 10 | 10 1/2" | 17 1/8" | 12 1/4" | 0.175" | 9.69" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K625 | 000000 | ||
| 12 | 12 3/4" | 20 1/2" | 14 1/2" | 0.175" | 11 1/2" | Not Rated | -50 to 840 | Carbon Steel | 304 Stainless Steel | Graphite | 304 Stainless Steel | ASME B16.20 | 44955K626 | 000000 | ||
Easy-Install High-Temperature Metallic Pipe Gaskets
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Instead of bolt holes, these gaskets have tines that easily fit around flange bolts to ensure they’re properly aligned with pipe openings. The tine design also means you won’t have to retorque the flange for alignment, saving time. These gaskets are half as thick as our other metallic gaskets, so they're easier to slip in between flanges. Made from 304 stainless steel, these gaskets add structural strength. They also withstand high temperatures, making them a good option for extreme environments. Because these don't have bolt holes, they work with multiple ANSI Class designations, so they're compatible with low-, medium-, and high-pressure pipe flanges.
Plain-Back Gaskets for ANSI Flanges
1/16" Thick | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Pipe Size | ID | OD | Compressed Thk. | Sealing Element OD | Max. Pressure, psi | Temp. Range, ° F | Material | Sealing Element Material | Sealing Element Filler Material | Each | |||
For ANSI Class 150, 300, 600, 1500, and 2500 | |||||||||||||
| 1 | 1 5/32" | 4 5/8" | 0.024" | 2.61" | 5,000 | -325 to 930 | 304 Stainless Steel | 304 Stainless Steel | Graphite | 4484N11 | 00000 | ||
| 1 1/2 | 2 1/32" | 3 3/8" | 0.024" | 2.59" | 5,000 | -325 to 930 | 304 Stainless Steel | 304 Stainless Steel | Graphite | 4484N12 | 00000 | ||
| 2 | 2 7/16" | 4 1/8" | 0.024" | 3.26" | 5,000 | -325 to 930 | 304 Stainless Steel | 304 Stainless Steel | Graphite | 4484N13 | 00000 | ||
| 3 | 3 5/8" | 5 3/8" | 0.024" | 4.56" | 5,000 | -325 to 930 | 304 Stainless Steel | 304 Stainless Steel | Graphite | 4484N14 | 00000 | ||
| 4 | 4 3/4" | 6 7/8" | 0.024" | 5.7" | 5,000 | -325 to 930 | 304 Stainless Steel | 304 Stainless Steel | Graphite | 4484N15 | 00000 | ||
| 6 | 6 15/16" | 8 3/4" | 0.024" | 7.82" | 5,000 | -325 to 930 | 304 Stainless Steel | 304 Stainless Steel | Graphite | 4484N16 | 00000 | ||
High-Temperature Graphite Pipe Gaskets
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Able to withstand temperatures up to 750° F, these graphite gaskets have a stainless steel insert for strength to handle pressure up to 1,000 psi. Also known as ring gaskets, use them with raised-surface pipe flanges; they fit the surface inside the bolt holes and do not interfere with the bolt connection. All gaskets are sized to meet ANSI standards.
