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Special
Springlike Metal strips are wound with an Asbestos/P.T.F.E/Grafoil
Filler by a special process to assure a leakproof
seal. The sealing is done by the Asbestos Filler and
the metal strip provides the spring. This combination
of metal and soft asbestos Filler piles compresses
to its predetermined thickness under bolting pressure
and thereby prevents leakage within the limit of its
specified pressure and temperature. With the addition
of centering devices, "SPITMAAN" Spiral
Wound Gaskets can be adapted for use on many types
of flanges and closures.
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.005" ( 3.2 mm )
