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ELASTOMERICS
REINFORCED ELASTOMERS
SPECIALTY MATERIALS
KLINGERŽSil Compressed Gasket Material
Non Metallic
Gasket Materials
A GUIDE TO MATERIAL SELECTION
Current
non-metallic gasket materials encompass a broad spectrum.
Also, new types of materials continue to appear in the market
and it would be impractical to list and describe all these
types of materials. A more practical approach is to comment
generally on the commonly used materials which for the most
part offer the gasket user a complete enough range to make
a proper gasket selection.
The
effectiveness of any gasket is determined to a large extent
by its resistance and adaptability to five sets of conditions:
1. THE INTERNAL: The forces continually trying to unseal
a gasketed joint by exerting pressure against the gasket (blowout
pressure) and against the flanges holding the gasket in place
(hydrostatic end force).
2. THE FLANGE LOAD: The total force compressing the
gasket to create a seal, i.e., the effective pressure resulting
from the bolt loading.
3. TEMPERATURE: The effects of heat or cold acting
upon the gasket, flange and bolts.
4. MEDIUM: The liquid or gas against which the gasket
is to seal.
5. GENERAL CONDITIONS: The type of flange, the flange
surfaces, the type of bolt material, the spacing and tightness
of the bolts. etc.
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