Company Profile Non-asbestos gasket is made from special
non-asbestos heat-resisting fiber, natural rubber compound heating
and compression molding. It eliminates asbestos rubber sheet
essentially and thoroughly. The maximum dimension reach 2700 x
2700mm.Certifications Non-Asbestos Fibre materials are
so-called because they fill the gap in the range of gasket
materials previously occupied by asbestos. Asbestos, although now
known to be a dangerous material, had excellent heat resistance
properties, which is why it was utilised so widely in high
temperature applications. When asbestos was outlawed, replacement
materials were needed; and so these asbestos-free, or non-asbestos,
materials were developed to perform the same function, but without
the corresponding danger to human health. These materials are
now commonly comprised of aramid fibre (Kevlar) and non-organic
fibres, which are in turn blended with different polymers to meet
different applications: most commonly nitrile rubber, for fuel and
oil resistance. These materials can also be graphite coated for
non-stick and steam resistance, mixed with PTFE for excellent
chemical resistance, or with EPDM for potable water
applications. Common Industries Utilising Non-Asbestos Fibre,
Non-asbestos Gasket · Oil and Gas· Chemical Processing·
Petrochemical Industry· Process Industry Dimensions of
Non-Metallic Flat Gaskets, ASME B16.21 to be used with Raised Face
flanges ASME b16.5 Gasket Dimension Class 150 to
900 NPS 1/2 to
24NPSd1d2Class150Class300Class400Class600Class9001/22148545454643/427576767677013367737373791.1/44276838383891.1/24886959595982601051111111111432.1/273124130130130.21653891371491491491683.1/2102162165162162 411417518117819420651411972162132412486168222251248267289821927930830532135910273340362359400435123244104224194574981435645148648349252116406514540537565575184575495975946136382050860665464868369924610718775768791838 General
notes:· Dimensions are in millimeters unless otherwise indicated.·
d1 = Inside diameter.· d2 = Outside diameter.· Dimensional
tolerances outside diameter NPS 12 and smaller: +0 / -1.5 mm.·
Dimensional tolerances outside diameter NPS 14 and larger: +0 /
-3.0 mm.· Dimensional tolerances inside diameter NPS 12 and
smaller: ± 1.5 mm.· Dimensional tolerances inside diameter NPS 14
and larger: ± 3.0 mm.· Thickness (t) specified by customer. /*
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