Page 2 - FlexitallicCatalog2010

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Introduction
FIRST AND FOREMOST
The concept of spiral wound gasket construction was originated by Flexitallic
in 1912, inaugurating the beginning of a new era in safe, effective sealing.
The primary purpose for this development was the increasingly severe
temperatures and pressures used by U.S. refinery operators in the first half
of the century.
The necessity for a gasket to have the ability to recover cannot be over
emphasized. The effects of pressure and temperature fluctuations, the
temperature differential across the flange face, together with bolt stress
relaxation and creep, demand a gasket with adequate flexibility and recovery
to maintain a seal even under these varying service conditions. The Flexitallic
Spiral Wound Gasket is the precision engineered solution to such problems,
meeting the most exacting conditions of both temperature and pressure in
flanged joints and similar assemblies and against virtually every known
corrosive and toxic media.
This publication is designed to facilitate the specification and ordering of
standard Flexitallic Spiral Wound Gaskets. Dimensional data for the basic
styles - Style CG, Style CGI, Style R and Style RIR are detailed on respective
tables.