Gasket Sheets by Temperature
Gasket sheets are available in various materials, each with its own temperature range of performance. Here’s a breakdown of gasket sheet materials commonly categorized by their temperature capabilities:
Low Temperature (Cryogenic):
- Materials: PTFE (Polytetrafluoroethylene), Expanded PTFE, Rubber (e.g., Silicone)
- Temperature Range: Typically below -50°C (-58°F)
Moderate Temperature:
- Materials: Non-asbestos fibers (e.g., Aramid, Fiberglass, Carbon), Cork, Rubber (e.g., NBR, SBR)
- Temperature Range: Around -50°C to 200°C (-58°F to 392°F)
High Temperature:
- Materials: Graphite, Mica, Ceramic Fiber, Metal (e.g., Stainless Steel)
- Temperature Range: Above 200°C (392°F), some up to 1000°C (1832°F) or higher
Extreme Temperature:
- Materials: Combinations of high-temperature materials, specialized ceramics, and metals
- Temperature Range: Varies, but typically above 1000°C (1832°F)
The choice of gasket sheet material depends on the specific temperature conditions of the application. It’s crucial to select a material that can withstand the anticipated temperature range without degradation or loss of sealing effectiveness. Additionally, factors such as pressure, chemical exposure, mechanical stress, and surface irregularities should also be considered when choosing the appropriate gasket material for a particular application.