2.  A gasket is a mechanical seal which fills the space between
two or more mating surfaces, generally to prevent leakage
from or into the joined objects while under compression.
 Gasket material saves money by allowing less precise mating
surfaces on machine parts which can use gasket material to fill
irregularities.
 Gaskets are commonly produced by cutting from sheet gasket
materials.

3. GASKETS
Non-Metallic types Semi-Metallic types Metallic types
Arimid fiber Elastomer & Fiber
Glass fiber Elastomer Composites of metal and
non-metallic materials. Compressed Sheet
Teflon (PTFE) Flexible Graphite
Graphite ,etc.., Metal-reinforced graphite
EPDM Graphite ,etc.., PTFE
High Temperature Sheet

4.  ASME/ANSI B16.20 - 1998 - Metallic Gaskets for Pipe Flanges-Ring-Joint, Spiral-
Would, and Jacketed
 ASME/ANSI B16.21 - 1992 - Nonmetallic Flat Gaskets for Pipe Flanges
 Gasket Represent by Classes like 150#, 300# etc.,

5. Gasket
Gasket for Fittings
Non- Asbestos gasket
Metal Gasket
Gasket for Flanges