Natrual Stainless Steel Color Spiral Wound Gaskets with or without
Filler
Spiral wound gaskets — made with an alternating combination of formedmetal wire and
soft fillermaterials — form avery effective seal when compressed
between two flanges.A V-shaped crown centered in the metal strip
acts as a spring, giving the gaskets greater resiliency under
varying conditions. Filler and wire material can be changed to
accommodate different chemical compatibility requirements. If the
load available to compress a gasket is limited, gasket construction
and dimensions can be altered to provide an effective seal.
A spiral wound gasket may include a centering ring, an inner ring
or both. The outer centering ring accurately positions the gasket
within the flange and acts as a compression limiter, while the
inner ring provides additional radial strength. The inner ring also
reducesflange erosion and protects the sealing element.
Resiliency and strength make spiral woundgaskets an ideal choice
under a variety of conditions and applications. Widely used
throughout refineries and chemical processing plants, spiral wound
gaskets are also effective for power generation, aerospace, and a
variety of valve and specialty applications.
The ASME B16.20 gasket specification has been updated and changed
to a new recommended standard. The new criteria incorporates a
default to inner rings in all graphite-filled spiral wound gaskets
unless the purchaser specifies otherwise. However, a
graphite-filled spiral wound gasketwithout an inner ring will still
be stamped with and in compliance to the ASME B16.20 standard.
Style RW
General purpose gasket suitable for flat face and raised face
flanges up to Class 2500
Centering ring accurately locates the gasket on the flange face,
provides additional radial strength, and acts as a compression
limiter
Spiral winding (sealing element) consists of pre-formed metal and
soft filler material
NOTE: An inner ring is recommended for applications above Class
600, due to the high available bolt load. See Style RWI.
Style RWI
Suitable for flat face and raised face flanges up to Class 2500
Recommended for higher pressure applications, for use with PTFE
fillers, and when delineated by ASME B16.20
Inner ring acts as a compression limiter and protects sealing
elements from process media attack
Style R
Suitable for tongue and groove, male-female, or groove-to-flat face
flanges
Spiral winding only, containing preformed metal and soft filler
material
Inner and outer diameters of winding are reinforced with several
plies of metal without filler to give greater stability
NOTE: Also available with inner rings Style RI.
MC and MCR Gaskets
For Manhole Cover Assemblies
Bulk goods
