5511 Tomken Road. Unit #1

Mississauga, Ontario L4W 4B8

905-602-2033

Phone

Mon - Fri: 8:30am - 5pm

Hours

5511 Tomken Road. Unit #1

Mississauga, Ontario L4W 4B8

905-602-2033

Phone

Mon - Fri: 8:30 - 5

Hours

Spiral Wound Gaskets: Temperature, Colour Codings and Markings

Spiral Wound Gasket Material Selection

Spiraltec, Spiral wound gaskets are manufactured according to ASME B-16.20 standard which stipulates that an inner ring is required for all PTFE filled gaskets and for all class:

* 900# NPS 24 and larger
* 1500# NPS 12 and larger
* 2500# NPS 4 and larger

As of May 2008, the metricated edition of the standard, reccomends the use of inner rings for all Graphite filled spiral wound gaskets. However, these gaskets may be supplied without inner rings per customer request. Both styles will still be stamped ASME B-16.20 compliant on the outer guide ring.

Non-Metallic Fillers - ASME B16.20

Filler MaterialMax TemperatureAbbreviationASME B16.20 Colour Coding
Graphite550°CF.G.Grey stripe
PTFE260°CPTFEWhite stripe
Verdicarb (MicaGraph)350°CMICAPink stripe
Ceramic1090°CCERLight green

Colour Code Chart - ASME B16.20

Material Winding/PlateMax TemperatureAbbreviationASME B16.20 Colour Coding
304 Stainless Steel 540°C304Yellow
316L Stainless Steel800°C316LGreen
321 Stainless Steel870°C321Turquoise
347 Stainless Steel870°C347Blue
Carbon Steel540°CCRSSilver
Alloy 20 [20Cb-3]760°CA-20Black
Hastelloy B-21000°CHAST BBrown
Hastelloy C-2761000°CHAST CBeige
Inconel 6001000°CINC 600Gold
Inconel 6251000°CINCO 625Gold
Inconel X-7501000°CINXLight Grey
Inconel 8251000°CIN 825White
Monel 400800°CMONOrange
Nickel 200600°CNIRed

Other materials available upon request.

Spiraltec Gasket

SpiralTec_Gasket

Scroll to Top