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PTFE Envelope Gaskets
Came into existence in year 1981, since then we have been engaged in business of manufacturing and supplying quality tested PTFE Envelope Gaskets. Offered gaskets are widely demanded in construction, agricultural, chemical and beverage industry to prevent leakage between mating surfaces. These gaskets are highly admired owing to their optimum strength and load-bearing capacity. Available in several specifications provided PTFE Envelope Gaskets can be purchased from us at pocket-friendly rates.
- Easy to install and highly reliable
- Free from any defect
- Accurate dimension
These are made from materials that compress easily, such as elastomers like nitrile, (NBR,) EPDM and silicone, as well as graphite, PTFE and fibrous materials. Their corrosion resistance is good but they are limited in the temperatures they can handle. Nitrile gaskets for example only work from -60 to 250Â°F (-51 to 121Â°C) and EPDM is only slightly better with a range of -70Â°F to 350Â°F (-57Â°C to 177Â°C). Silicone gaskets will however go up to 500Â°F (260Â°C) and PTFE is effective from cryogenic temperatures up to 450Â°F (232Â°C).
Full face gasket types are suitable for use with flat-face (FF) flanges and flat-ring gasket types are suitable for use with raised face (RF) flanges.
Soft gaskets are also limited in their ability to handle high pressures. The best applications are those involving sealing variable gaps as might be found around the doors of an electrical enclosure.