459 Graphite Manway Gasket
- High-Pressure, High-Temperature Graphite Sheet With Nickel Foil Reinforcement
Improper manway sealing can result in a door gasket failure and significant safety risks. 459 is a graphite sheet with nickel foil reinforcement designed for use in high-pressure, high-temperature applications. It has excellent chemical esistance and can be used to 450°C (850°F) in an oxidizing service and to (870°C) 1600°F in a non-oxidizing service.
Please contact your local Chesterton Representative to help you select the best product for your application.
Product Features
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- Reduces housekeeping concerns
- No hot retorquing
- Reduces maintenance requirements
Technical Data
| Material | Graphite sheet with nickel foil reinforcement |
|---|---|
| Presssure Limit |
140 bar g (2000 psig); Compressibility (ASTM F36) 35% minimum |
| Temperature Limit |
870°C (1600°F) in non-oxidizing services; 450°C (850°F) in oxidizing services |
| Chemical Resistance | pH 0 – 14 |
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