Spiral Wound Gaskets - Flexitallic

1 Tel. +44 (0)1274 851273 Fax. +44 (0)1274 300303 Email. DATASHEETThe Spiral woundgasket is a versatilesemi-metallic gasketcapable of sealingacross a wide rangeof WOUNDGASKETSS ervice: Spiral Wound Gaskets are widely used in manyindustries to seal a vast array of media acrossa wide range of temperatures and key to the Gaskets versatility is theinherently resilient sealing element. The spiralwound sealing element is manufactured byspirally winding a preformed metallic strip and filler material around the periphery of a metal mandrel.

2 It would not be possible to cover everycombination in a general product data optimum conditions Spiral woundgaskets are effective across the followingoperational parameters:Pressure Range:Full vacuum to > 450 barTemperature Range: -250oC to 1050oCSpiral Wound Gaskets can be used in flangeswith various flange face configurations. Thetype of configuration is the main determinantof the style of Spiral Wound gasket used. An important consideration when using spiralwound Gaskets is to control the maximumcompression the gasket is subjected to during gasket installation.

3 Compression can be controlled by the use of a solid metalliccompression stop incorporated into the gasketdesign. Alternatively compression may becontrolled by flange face configuration. The incorporation of outer metallic ringsalso facilitates gasket location especially on standard Class or PN rated flanges withraised and flat face configurations. There are numerous construction standards, morecommon ones include ASME , EN 12560-2 and EN 1514-2 BAM for Oxygen 12/17 Rev4 This Data Sheet refers to the material assupplied.

4 The information contained hereinis given in good faith, but no liability will beaccepted by the Company in relation to reserve the right to change the detailsgiven on this Data Sheet as additionalinformation is acquired. Customers requiringthe latest version of this Data Sheet shouldcontact our Applications information given and, in particular, anyparameters, should be used for guidancepurposes only. The Company does not giveany warranty that the product will be suitablefor the use intended by the & SafetyFor further Health and Safety informationplease see the relevant Material SafetyDatasheets or contact Flexitallic UK Ltd.

5 Spiral Wound Gasket Styles:Sealing element with outer ring only: Flexitallic Style CG for use with raised and flat flange face element with outer & inner ring: Flexitallic style CGI for use with raised and flat face flange element with inner ring only: Flexitallic Style RIR for use with spigot to recess (TEMA) type flange face element only: Flexitallic Style R for use with flat face to recess and tongue & groove flange faceconfigurations. Tel. +44 (0)1274 851273 Fax. +44 (0)1274 300303 Email. DATASHEETPDS578 12/17 Rev4 Materials: Spiral Wound Gaskets can be constructed using many different combinations of selection is generally dictated byapplication conditions namely temperature,pressure and media.

6 In the oil, gas and powergeneration industries a common sealingelement material combination is 316 stainlesssteel metallic strip with Flexicarb (graphite)filler material. However Gaskets made from many othermaterial combinations are commonly guidelines for filler material selectionare as follows:FlexicarbTM(Graphite):Hydrocarbo n and steam service up to 450oCThermiculite (Silicate):Hydrocarbon, steam and chemical service up to 1050oCPolytetrafluoroethylene (PTFE):Chemical, oxygen and clean service up to 260oCProperties.

7 Spiral Wound Gaskets can be supplied to nationalor international standards where properties arecontrolled by adherence to construction is normally the case for bolted connectionsutilising standard flanges. Spiral Wound gasketsmay also be manufactured on a customised basiswhere gasket style, geometry and sealing elementstiffness are chosen to best suit the flangearrangement, available gasket load andoperational conditions.