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Tank Car Manway Gaskets
For Covers—Flat Profile
 |
Gaskets for covers fit into the groove of manway lids.
Flat-profile nozzle gaskets have metal mounting tabs that secure the gasket to the nozzle.
ePTFE— ePTFE gaskets are chemically inert, except to molten alkali metal and fluorine compounds. They have a corrugated stainless steel insert, so they compress without deforming at lower bolt loads than rubber. This means they create a tighter seal without causing bolts to loosen.
For Manway ID | ID | OD | Thk. | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Insert Material | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ePTFE | ||||||||||||
| 20" | 19 3/8" | 21 3/4" | 1/8" | 300 | -330 to 400 | Not Rated | White | 316 Stainless Steel | 4532N12 | 0000000 | ||
| 20" | 19 1/2" | 21 1/2" | 1/8" | 300 | -330 to 400 | Not Rated | White | 316 Stainless Steel | 4532N13 | 000000 | ||
| 20" | 19 1/2" | 21 5/8" | 1/8" | 300 | -330 to 400 | Not Rated | White | 316 Stainless Steel | 4532N11 | 000000 | ||
For Nozzles—Flat Profile
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Flat-profile nozzle gaskets have metal mounting tabs that secure the gasket to the nozzle.
ePTFE— ePTFE gaskets are chemically inert, except to molten alkali metal and fluorine compounds. They have a corrugated stainless steel insert, so they compress without deforming at lower bolt loads than rubber. This means they create a tighter seal without causing bolts to loosen.
For Manway ID | ID | OD | Thk. | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Insert Material | Features | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ePTFE | |||||||||||||
| 20" | 20" | 21 1/4" | 1/8" | 300 | -330 to 400 | Not Rated | White | 316 Stainless Steel | Mounting Tabs | 4532N14 | 0000000 | ||
For Nozzles—U-Profile
 |
U-profile nozzle gaskets have a lip that wraps around the nozzle, securing them in place.
Buna-N—Buna-N rubber gaskets resist oil, water, and salts.
EPDM—EPDM gaskets resist water, steam, and salt water.
Neoprene—Neoprene gaskets are FDA compliant for use with food.
For Manway ID | ID | OD | Thk. | Max. Pressure, psi | Temp. Range, ° F | Hardness | Hardness Rating | Color | Food Industry Std. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Buna-N | |||||||||||||
| 20" | 19 3/4" | 21 7/16" | 1/8" | 165 | -65 to 270 | Durometer 75A | Hard | Black | — | 4532N15 | 0000000 | ||
EPDM | |||||||||||||
| 20" | 19 3/4" | 21 7/16" | 1/8" | 165 | -50 to 300 | Durometer 80A | Hard | Black | — | 4532N16 | 000000 | ||
Neoprene | |||||||||||||
| 20" | 19 3/4" | 21 7/16" | 1/8" | 165 | -25 to 250 | Durometer 65A | Medium Hard | White | FDA Compliant 21 CFR 177.2600 | 4532N17 | 000000 | ||
Fluoroelastomer | |||||||||||||
| 20" | 19 3/4" | 21 15/16" | 1/8" | 165 | -20 to 400 | Durometer 80A | Hard | Black | — | 4532N18 | 000000 | ||
