Spiril Wnd Gasket Bro 6/4/01 - Seals Unlimited
PageCONTENTS1MANUFACTURING UNITS2INTRODUCTION3GASKET IDENTIFICATION4AVAILABLE GASKET MATERIALS5GASKET SELECTION6DIMENSIONAL DATA7TABLE 1 - STYLE CG & CGI TO ASME B16.20 TO SUIT ASME B16.5 FLANGES - IMPERIAL SIZES8TABLE 2 - STYLE CG & CGI TO ASME B16.2O TO SUIT ASME B16.5 FLANGES- METRIC SIZESTABLE 3 - INNER RING DIMENSIONS FOR STYLE CGI TO ASME B16.20910TABLE 4 - STYLE CG & CGI TO SUIT SMALL DIAMETER SCREWED OR SLIP-ON FLANGES10TABLE 5 - MAXIMUM BORE OF ASME B16.5 FLANGES11TABLE 6 - STYLE CG & CGI TO ASME B16.20 TO SUIT LARGE DIAMETER ASME B16.47 SERIES B FLANGES12 & 13TABLE 6.1 - STYLE CG & CGI TO ASME B16.20 TO SUIT LARGE DIAMETER ASME B16.47 SERIES B FLANGES12 & 13TABLE 7 - STYLE CG & CGI TO ASME B16.20 TO SUIT LARGE DIAMETER ASME B16.47 SERIES A AND BS 3293 FLANGES14 & 15TABLE 7.1 - STYLE CG & CGI TO ASME B16.20 TO SUIT LARGE DIAMETER ASME B16.47 SERIES A AND BS 3293 FLANGES14 & 15TABLE 8 - STYLE CG & CGI TO SUIT LARGE DIAMETER FLANGES16 & 17TABLE 8.1 - STYLE CG & CGI TO SUIT LARGE DIAMETER FLANGES16 & 17TABLE 9 - STYLE CG & CGI TO BS 3381 TO SUIT BS 1560 & ASME B16.5 FLANGES - IMPERIAL SIZES18TABLE 10 - STYLE CG & CGI TO BS 3381 TO SUIT BS 1560 & ASME B16.5 FLANGES - METRIC SIZES19TABLE 11 - STYLE CG & CGI TO SUIT BS10 FLANGES20TABLE 12 - STYLE CG & CGI TO BS 4865 PART 2 TO SUIT BS 4504 FLANGES21TABLE 13 - STYLE CG & CGI TO SUIT DIN FLANGESTABLE 14 - STYLE R TO SUIT ASME B16.5 AND BS 1560 FLANGE2223TABLE 15 - STYLE RIR TO SUIT ASME B16.5 AND BS 1560 FLANGES24TABLE 16 - STYLE CG & CGI TO SUIT JIS FLANGES25TABLE 17 - STYLE CG & CGI TO SUIT JIS FLANGES25TABLE 18 - STYLE CG-RJ & CGI-RJ REPLACEMENTS FOR RING JOINT GASKETS26TABLE 19 - STYLE 625 FOR CLAMP-TYPE AND OTHER NON-STANDARD FLANGE ASSEMBLIES27USEFUL TECHNICAL DATAASSEMBLY TECHNIQUES28TABLE 20 - TORQUE REQUIRED TO PRODUCE BOLT STRESS29TABLE 21 & 22 - BOLTING DATA FOR ASME B16.5 AND BS 1560 FLANGE30TABLE 23 - FACING DIMENSIONS FOR ASME B16.5 AND BS 1560 FLANGES31SPECIAL APPLICATION GASKETSSPECIAL CGI WITH SPIRAL WOUND OUTER RING GASKETS FOR HEAT EXCHANGERS32CARRIER RING GASKETS33STYLE LS LOW STRESS GASKET34BOILER CAP AND MANHOLE COVER GASKETS35TABLE 24 - STYLE M, MC & MCS36TABLE 25 - STYLE T37THE BAKER GASKET38MULTI-CLASS SPIRAL WOUND GASKET391
Worldwide CustomerService NetworkOwned ManufacturingPlantsFlexitallic Ltd.Cleckheaton,Yorkshire, UKTeI: 44 1274 851273Flexitallic Ltd.Rochdale, Lancashire, UKTeI: 44 1274 851273Dan---Loc Bolt & Gasket, Inc.Houston,Texas, USATel: 1 713 356 3500Flexitallic L.P.Houston,Texas, USATel: 1 713 356 3600Flexitallic CanadaOntario, CanadaTel: 1 519 332 8300Flexitallic s.r.o.Kostelec, Czech RepublicTel: 42 0444 321 813Joint VenturesEquiter S.A. de C.V.Guadalajara, MexicoTel: 52 3 612 8483Flexitallic de Venezuela S.A.Caracas,VenezuelaTeI: 58 2 41 783550Branch Offices & WarehousesFlexitallic Ltd.Aberdeen, Scotland, UKTel: 44 1224 725241Flexitallic GmbHBursheid, GermanyTel: 49 2174 8950Flexitallic L.P.Cherry Hill, New Jersey, USATel: 1 856-234-5200Flexitallic L.P. (A.L. Crump)Chicago, Illinois, USATel: 1 630-268-0418Dan---Loc Bolt & Gasket, Inc.Gardena, California, USATel: 1 310-538-28222LicenseesACL Specialised Gaskets Pty. Ltd.Brisbane, AustraliaTel: 61 73 268 0666Automotive Components N.Z.Auckland, New ZealandTel: 64 98284119Industrial Gasket & SupplyTorrance, California,USATel: 1 310 530 1771Saudi Gasket FactoryJeddah, Saudi ArabiaTel: 996 2 665 2966Arne Bo PedersenStavanger, NorwayTel: 47 5185 9000A.G.S. GroupEdmonton, Alberta, CanadaTel: 1 780-466-5050TL-FLEX (M) Sdn. Bhd.Melaka, MalaysiaTel: 06 5297134 35 36Eriks BV.Rotterdam, NetherlandsTel: 31 72 514 1514Tat Lee Engineering Private Ltd.Jurong, SingaporeTel: 65 2685188FMI Sima S.R.L.Brescia, ItalyTel: 39 030 7386 033Goldcrest Engineering & Service Co.(GESCO)Pataya, Chonburi, ThailandTel: 1 66 38 716 716Dragon Industrial ServicesPembroke, UKTel: 441646 622200Henry Gallacher Ltd.Stockton, Teesside UKTel: 44 1642 750111Lake Charles RubberLake Charles, Louisiana, USATel: 1 337-433-1002
IntroductionFIRST AND FOREMOSTThe concept of spiral wound gasket construction was originated by Flexitallicin 1912, inaugurating the beginning of a new era in safe, effective sealing.The primary purpose for this development was the increasingly severetemperatures and pressures used by U.S. refinery operators in the first halfof the century.The necessity for a gasket to have the ability to recover cannot be overemphasized. The effects of pressure and temperature fluctuations, thetemperature differential across the flange face, together with bolt stressrelaxation and creep, demand a gasket with adequate flexibility and recoveryto maintain a seal even under these varying service conditions. The FlexitallicSpiral Wound Gasket is the precision engineered solution to such problems,meeting the most exacting conditions of both temperature and pressure inflanged joints and similar assemblies and against virtually every knowncorrosive and toxic media.This publication is designed to facilitate the specification and ordering ofstandard Flexitallic Spiral Wound Gaskets. Dimensional data for the basicstyles - Style CG, Style CGI, Style R and Style RIR are detailed on respectivetables.3
GASKETIDENTIFICATION GUIDE RING COLOR CODINGFor ease of identification, Flexitallic Spiral Wound Gaskets utilize a color coding system around the outside edge of thecentering ring, thus permitting full identification of both the winding and filler materials.METALLICWINDINGMATERIALSThe metallic windingmaterial is designated bya solid color identificationaround the outside edgeof the centering e347SSBlue31OSSNo color304LSSNo color309SSNo color430SSNo colorAlloy 20BlackTitanium PurpleInconel 600/625GoldIncoloy 800/825WhiteInconel X750No ColorHastelloy C276BeigeHastelloy B2BrownNickel 200RedZirconiumNo colorCarbon SteelSilverPTFEWhite StripeFlexicarb Gray StripeFlexite Super Pink StripeNON METALLICFILLERSThe gasket filler materialsare designated by anumber of stripes placed atequal intervals around theMonel Orangeoutside edge of thecentering ring.CeramicLight Green Stripe4T H EThermiculite Light Blue StripeA N S W E RI SA L W A Y S
AVAILABLE GASKET MATERIALSMETAL WINDING STRIPAS STANDARDStainless Steel 304type 316LOTHERSStainless Steeltype 304L309310316Ti317L32134743017-7PHALLOY 20MONEL TITANIUM NICKEL 200INCONEL 600625X-750HASTELLOY B2C276INCOLOY 800825DUPLEXZIRCONIUM TANTALUM COPPERPHOS-BRONZECARBON STEELFILLER MATERIALFlexicarb flexible graphiteThermiculite Flexite Super PTFEMicaCeramicNon-sintered PTFEThermiculite, FLEXITALLIC’S new hightemperature, sealing material is comprisedof chemically exfoliated and thermallyexfoliated vermiculite.This revolutionary new product simulatesthe structure of exfoliated graphite but withone notable exception gaskets made withThermiculite maintain their integrity, even atextreme temperatures.Thermiculite is thermally stable, ensuringagainst thermal oxidation, at temperaturesin excess of 1600ºF.GUIDE RING MATERIALAS STANDARDCarbon SteelOTHERSStainless Steeltype 304304L316316L316Ti310321347410INCONEL 600625MONEL TITANIUM NICKELINCOLOY 800ALLOY 20INCOLOY 825HASTELLOY B-2C276NOTESelected materials should be compatible with operating temperature and chemicals.If in doubt, contact Flexitallic Technical Department.PTFE:If PTFE is subjected to temperatures above 250ºC (500ºF) decomposition starts to occur slowly, increasingrapidly above 400ºC (750ºF). Care should be taken to avoid inhaling the resultant fumes, which may producehazardous effects.IDENTIFICATION REQUIREMENTS5
Style CGUtilizes an external ring which accuratelycenters gasket on flange face, providesadditional radial strength to prevent gasketblow-out and acts as a compression stop.A general purpose gasket suitable for usewith flat face and raised face flanges up toand inclusive of class 2500.Above class 600 an internal ring isrecommendedGASKET SELECTIONWhat style of gasket should I select?Style CGIA Style CG gasket fitted with internal ringwhich gives an additional compressionlimiting stop and provides heat andcorrosion barrier protecting gasket windingsand preventing flange erosion.Suitable for use with flat face and raisedface flanges and specified for highpressure/temperature service - class 900and above or where corrosive or toxic mediaare present.Style CGStyle CGIStyle RStyle RIRStyle RBasic construction type. Inner and outerdiameters are reinforced with several pliesof metal without filler to give greater stabilityand better compression and sealingcharacteristics.Suitable for tongue and groove or maleand female or grooved to flat face flangeassemblies.Style RIRSolid inner metal ring acts as a compressionstop and fills the annular space betweenflange bore and the inside diameter of thegasket. Designed to prevent accumulationof solids, reduce turbulent tlow at processtlulds and minimize erosion at flange faces.Suitable for male and female pipe flanges.SELECTION GUIDEPublished as an indication of which Flexitallic Spiral wound Gasket best suitsdifferent pipe flange Configurations and service conditions.Flange FaceRecommendedGasket StyleRecommendedGasket StyleFor high pressure/temperature duty,also for gaskets withPTFE filler, corrosive orfluctuating pressure ortemperature serviceconditions.6*NOTEIt is essential that Style R gaskets operate with acompression stop. without a correctly dimensionedstop the gasket con easily be overcampressed resultingin failure. To provide a compression stop the depth ofthe tongue, groove or recess is controlled to provideoptimum compressed gasket thickness with metal tometal contact at the flange faces (see Page 25,Table 16).
SPECIAL GASKETSGaskets of special design can beengineered and fabricated usingthe same basic fundamentals ofFlexitallic Spiral Wound Gasketdesign and construction to covera wide range of applications ininstallations for which there areno industry-wide standards.Special gaskets have beendesigned for valves, pumps,compressors, turbines, boilers,heat exchangers, etc. Consult withFlexitallic engineers as early in thedesign stage as possible.DIMENSIONAL DATA- STYLE CG & CGI GASKETSTO SUIT STANDARD RAISED FACE AND FLAT FACE FLANGES*Style CG*Style CGIGOVERNMENT SPECIFICATIONSFlexitallic Spiral Wound Gasketsare available in accordance withMilitary SpecificationsMIL-G-24716, and MIL-G-15342,latest revisions. When makingan inquiry, refer to the properGovernment Specificationnumber.All CG and CGI Gaskets for these standard flanges are 4.5mm (O.175in) thick, fitted with 3.2mm(0.125in) thick solid metal rings. Unless otherwise stated.Flexitallic style CG and CGI Spiral wound gaskets can bemanufactured in accordance with all relevant gasketstandards to suit the following flange designations.Please note that gaskets for non-standard flangesare also readily available.ASMEBSBSASME B16.47ASME B16.47BSDINB16.5156010SERIES BSERIES A4504FLANGES(API 605)(MSS SP 44)WHEN ORDERING PLEASE SPECIFYEXAMPLEGASKET STYLEFLEXITALLIC STYLE “CGI” SPIRAL WOUNDGASKETNOMINAL PIPE SIZE (NPS)4”PRESSURE RATINGCLASS 900GASKET STANDARDASME B16.20WINDING MATERIALS316L/FLEXICARBOUTER RING MATERIALCARBON STEELINNER RING MATERIAL316LPlease select correct gasket style for your particular application. See page 6 “Gasket Selection”.7
STYLE CG & CGI* TO ASME B16.20TO SUIT ASME B16.5 FLANGESTABLE1NOMPIPESIZE1 4OUTSIDE DIAMETEROF SEALING ELEMENTCLASS150, 300400, 6007CLASS900, 15002500INNER DIAMETER OF SEALING ELEMENTCLASS150CLASS300CLASS400CLASS600OUTER DIAMETER OF CENTERING S400CLASS600CLASS900CLASS1500CLASS250013 413 413 413 4––– 8-1111–––13333333 471 812 812 812 812 212 223 4 2 2 2 2111 41 43 419 1619 16111111121 425 825 825 823 423 43171 871 811 411 411 411 411 411 411 452 872 872 872 813 813 833 811 423 823 817 817 817 817 819 1619 16l9 16331 431 431 431 231 241 811 223 423 421 821 821 821 817 817 817 833 833 433 433 437 837 845 8233 833 823 423 423 423 425 1625 1625 1641 843 843 843 855 855 853 421 237 837 831 431 431 431 423 423 423 447 851 851 851 861 261 265 8343 443 4444433 435 835 853 857 857 857 865 867 873 431 251 451 441 241 241 841 841 841 8–63 861 263 863 871 273 8-457 857 85543 443 443 445 845 867 871 8775 881 881 491 441 261 261 251 251 255 1655 1655 1655 16–773 475 881 493 891 8-57761 861 8513 16513 16513 1655 855 873 481 283 891 293 41011681 481 473 1673 1667 867 867 863 463 483 497 893 4101 2113 8111 8121 28103 8101 893 1693 1687 887 883 481 281 211121 812125 8141 8137 8151 410121 2121 4115 16 115 16 1013 16 1013 16 107 8101 2105 8133 8141 4l41 8153 4171 8171 8183 412143 4141 2133 8133 8127 8127 8123 4123 4121 2161 8165 8161 218195 8201 2215 81416153 4145 8145 8141 4l41 414141 4–173 4191 819193 8201 2223 4–1611831111111111113333 218202418 420 4322 427 4516 8 4516 8 41l6 420 2 18 16 18 16 18 222 2 20 16 20 16 20 226 424 424 424 4 4116 4118' 2120 2324 4 4 41161116 418 4120 2324 418 4120 4124 4––––120 4521 8723 8128 4121 4123 2325 4130 2121 8323 8125 213O 4122 4124 8726 8131 8522 8125 8127 233DIMENSIONS IN INCHES.*For Style CGI - see Table 3 for Inner Ring dimensionsIn accordance with ASME B16.20, Inner Rings are mandatory for the following flange designations (see Toble 3).Class 900 - NPS 24 to 48Class 1500 - NPS 12 to NPS 24Class 2500 - NPS 4 to NPS 12ASME B16.20 does not include dimensions for NPS 1 4, 31 2 or 41 2, or Class 400 Flanges up to NPS 3 and Class 900 Flanges up to NPS 21 2.81–3–3–1–25 427 429 435 2
STYLE CG & CGI* TO ASME B16.20TO SUIT ASME B16.5 FLANGESTABLE2NOMPIPESIZEOUTSIDE DIAMETEROF SEALING ELEMENTINNER DIAMETER OF SEALING ELEMENTOUTER DIAMETER OF CENTERING RINGCLASS150, 300400, 600CLASS900, 119.119.119.119.147.854.154.154.163.563.569.93 .866.873.273.273.279.579.585.911 2.688.988.9 104.911 5.398.698.6 117.6285.985.969.969.969.969.958.758.758.7 104.9 111.3 111.3 111.3 143.0 143.0 146.1198.698.682.682.682.682.669.969.969.9 124.0 130.3 130.3 130.3 165.1 165.1 168.4120.7 120.7 101.6 101.6 101.6 101.6 95.392.292.2 136.7 149.4 149.4 149.4 168.4 174.8 196.9 4 22 2313 2441 2133.4 133.4 114.3 114.3 104.8 104.8 104.8 104.8–161.9 165.1 161.9 161.9 190.5 187.3–149.4 149.4 127.0 127.0 120.7 120.7 120.7 117.6 117.6 174.8 181.1 177.8 193.8 206.5 209.6 235.0165.1 165.1 139.7 139.7 134.9 134.9 134.9 134.9–177.8 196.9 193.7 209.6 238.1 231.8–5177.8 177.8 155.7 155.7 147.6 147.6 147.6 143.0 143.0 196.9 215.9 212.9 241.3 247.7 254.0 279.46209.6 209.6 182.6 182.6 174.8 174.8 174.8 171.5 171.5 222.3 251.0 247.7 266.7 289.1 282.7 317.58263.7 257.3 233.4 233.4 225.6 225.6 222.3 215.9 215.9 279.4 308.1 304.8. 320.8 358.9 352.6 387.410317.5 311.2 287.3 287.3 274.6 274.6 276.4 266.7 270.0 339.9 362.0 358.9 400.1 435.1 435.1 476.312374.7 368.3 339.9 339.9 327.2 327.2 323.9 323.9 317.5 409.7 422.4 419.1 457.2 498.6 520.7 549.414406.4 400.1 371.6 371.6 362.0 362.0 355.6 362.0–450.9 485.9 482.6 492.3 520.7 577.9–16463.6 457.2 422.4 422.4 412.8 412.8 412.8 406.4–514.4 539.8 536.7 565.2 574.8 641.4–18527.1 520.7 474.7 474.7 469.9 469.9 463.6 463.6–549.4 596.9 593.9 612.9 638.3 704.9–20577.9 571.5 525.5 525.5 520.7 520.7 520.7 514.4–606.6 654.1 647.7 682.8 698.5 755.7–24685.8 679.5 628.7 628.7 628.7 628.7 628.7 616.0–717.6 774.7 768.4 790.7 838.2 901.7–DIMENSIONS IN mm.*For Style CGI - see Table 3 for Inner Ring dimensionsIn accordance with ASME B16.20, Inner Rings are mandatory on the following flange designations (see Table 3).Class 900 - NPS 24 to 48Class 1500 - NPS 12 to NPS 24Class 2500 - NPS 4 to NPS 12ASME B16.20 does not include dimensions for NPS 1 4, 31 2 or 41 2, or Class 400 Flanges up to NPS 3 and Class 900 Flanges up to NPS 21 2.9
STANDARD INSIDE DIAMETERS OF INNER RINGS FOR STYLECGI GASKETS TO ASME B16.2O TO SUIT ASME B16.5 FLANGESNONPIPESIZETABLE3PRESSURE 614.220.5614.220.5614.220.5614.220.5614.223 20.570.8120.57 626.921.0626.9211 33.271.3133.2711 32.0652.322.0652.322.0652.5221 7.75196.851010.56288.22 10.56268.22 10.05255.27 7.50 12.50317.50 12.10307.34 12.10307.34 11.50292.1011.50 292.10 11.50292.101413.75549.28 13.75349.25 13.50342.80 13.50342.90 12.63320.80 12.63 320.80––1615.75400.05 15.75400.05 15.35389.89 15.35389.89 14.75374.65 14.50 388.30––1817.69449.33 17.69449.33 17.25438.15 17.25438.15 16.75425.45 16.75 425.45––2019.69500.13 19.69500.13 19.25488.95 19.25488.95 19.00482.60 18.75 476.25––2423.75603.25 23.75603.25 23.25590.55 23.25590.65 23.25590.55 22.75 577.85––DIMENSIONS IN INCHES & mm.STYLE CG & CGITO SUIT ASME B16.5 & BS 1560 SMALL DIAMETER SCREWED OR SLIP-ON FLANGESTABLE4Sealing ElementNom.PipeSize1 4 23 4111 411 21InnerRingInside Dia. 1613 1611 1613 815 8914.320.627.034.941.3InsideDia.9 16 1613 1617 1617 821 81514.323.830.236.547.654.0Guide Ring Outside DiameterOutsideDia.7 81 419 1617 823 823 4122.231.839.747.660.369.9Class15013 417 821 425 8333 844.547.657.266.776.285.7Class30013 421 825 827 831 433 444.554.066.773.082.695.3Class40013 421 825 827 831 433 444.554.066.773.082.695.3Class60013 421 825 827 831 433 444.554.066.773.082.695.3Class90021 223 431 831 237 863.569.979.488.998.4DIMENSIONS IN INCHES & mm.NOTE: The above style CG & CGI spiral wound gaskets are dimensioned to suit existing screwed or slip-on flanges for NPS 1 4to 11 2 ASME B16.5 & BS 1560 flanges.10Class150021 223 431 831 237 863.569.979.488.998.4
MAXIMUM BORE OF ASME B16.5 FLANGESFOR USE WITH STYLE CG & CGI SPIRAL WOUND GASKETSThis table shows the maximum bore of flanges for which the spiral-wound gasket dimensions shown are recommended consideringthe tolerances involved, possible eccentric installation, and the possibility that the gasket may extend into the assembled flange bore.TABLE5FLANGESIZE(NPS)PRESSURE CLASS751503004006009001500*2500*1 23 4WN flange onlybWN flange onlyb111 4SO flangecWN flangeb11 22No flangesUse Class 600SO flangeWN flangebSO flangecWN flange,any bore34No flanges681012SO flangeWN flange, any bore1820WN flange onlybWN flange with SW bore(includes nozzled but excludesSO flangeWN flange withSchedule 10S boredescribed in ASME B36.19M(includes nozzledbut excludesSO flange)1416No flangesUse Class 1500SO flangecWN flange,any boreSO flangecWN flange, any boreb21 2cWN flange withSchedule 10S bore descibedin ASME B36.19M(excludes nozzledandSO flange)eWN Flange withSchedule 80 bore(excludes nozzleandSO flange)No flanges24Note: SO slip on and threaded; WN welding neck; SW standard wall.a Innerrings are required for Class 900 gaskets, NPS 24; Class 1500 gaskets, NPS 12 through NPS 24; and Class 2500 gaskets; NPS 4 through NPS 12. These inner rings may extend intothe pipe bore a maximum of 0.06 inch (1.5 millimeters) under the worst combination of maximum bore, eccentric installation, and additive tolerances.b Inthese sizes the gasket is suitable for welding-neck flange with a standard-wall bore, if the gasket and the flanges are assembled concentrically. This also applies to nozzle. It is the user'sresponsibility to determine if the gasket is satisfactory for a flange of any larger bore.c Gaskets in these sizes are suitable for slip-on flanges only if the gaskets and flanges are assembled concentrically.d A nozzle is a long welding neck; the bore equals the flange NPS.e An NPS 24 gasket is suitable for nozzles.*Spiral wound gasket dimensions for use on screwed or slip-on flanges – see Table 4.11
STYLE CG & CGI TO ASME B16.20TO SUIT LARGE DIAMETER ASME B16.47 SERIES B FLANGESCLASS 75-300TABLE6CLASS 150CLASS 75Sealing ASS 300Sealing 6261 427277 826253 4261 2271 2289 1626253 4261 228303 828281 4291 8297 828273 4281 2291 2309 1628273 4281 230321 230301 4311 8317 830293 4301 2311 2329 1630293 4301 232347 832321 4331 8337 832313 4321 2331 23411 1632313 4321 23437117Sealing a.3434 435 835 83433 434 235 436 163433 434 236391 836361 4371 4385 1636353 4361 2373 4387 836353 4361 238411 438–––38373 4383 8393 4411 838381 4393 4411 4431 440–––40393 4401 4417 8431 840401 4413 4431 4451 442421 4431 4445 1642413 4421 2437 8451 842423 4433 4451 4471 444–––44433 4441 4457 8471 844441 4453 4471 4491 446–––46453 4461 2483 16497 1646463 8477 8493 8517 848483 8491 2501 248473 4481 250517 1648481 2493 4515 8537 850–––50493 4501 2523 16537 1650497 8517 8533 8557 852–––52513 4521 2543 16557 1652517 8537 8553 8577 854543 8555 8565 854533 4541 256575 854533 4551 4571 4601 456––––5656567 8583 16595 856561 4581 460623 458–––58583 16591 16603 16623 1658587 16607 166115 16653 1660601 2613 4627 860607 16615 16627 16643 1660615 16629 16643 16673 1631313DIMENSIONS IN INCHES.NOTE: Gasket dimensions to suit Class 75 flanges are not specified in ASME B16.20.These gaskets have been dimensioned to suit the flanges.12Nom.PipeSizeInnerRingInsideDia.31
STYLE CG & CGI TO ASME B16.20TO SUIT LARGE DIAMETER ASME B16.47 SERIES B FLANGESCLASS 400-900TABLE6.1CLASS 400Nom.PipeSizeInnerRingInsideDia.InsideDia.26253 4261 45CLASS 600Sealing Element1OutsideDia.CenteringRingOutsideDia.271 2293 811Nom.PipeSizeInnerRingInsideDia.InsideDia.26253 8261 8CLASS 900*Sealing Element3OutsideDia.CenteringRingOutsideDia.281 8301 831Nom.PipeSizeInnerRingInsideDia.Sealing a.26261 4271 4291 2332827 828 829 231 2282727 429 432 42828 429 431 2351 230295 8301 8313 4333 430295 8305 8325 8345 830303 4313 4333 4373 432311 232337 8357 832311 4323 4343 4363 432333436401111177111113433 234 835 837 83433 2353739 43435 436 438 4421 436353 8361 838401 436351 23739411 436361 4371 4391 4441 438371 2381 4401 4421 438371 23941431 238393 4403 4423 4471 440393 8403 8423 8443 840393 4411 4431 4451 240413 4431 4451 4491 442413 8423 8443 8463 84242431 2451 24842433 4451 4471 4511 444431 2441 2461 2481 244433 4453 4473 45044451 2471 2491 2537 846464749503 446453 4473 4493 4521 446485052561 248471 249515348485052543 448505254581 250491 25153551 60––––52545658601535511151 253 4155 4157 4359 455 4157 4159 4361 457 4159 4161 4363 4157 4359 4361 4363 4166 45654 4156 4585860160 456 4158 4160 2362 458 4160 4162 2364 461 463 265 268 4DIMENSIONS IN INCHES.NOTE: There are no class 900 flanges NPS 50 and larger.*Inner rings are mandatory for class 900 flanges, NPS 26 to 48.13
STYLE CG & CGI TO ASME B16.20TO SUIT LARGE DIAMETER ASME B16.47 SERIES A FLANGESCLASS 150-300TABLE7CLASS 6CLASS 300OutsideDia.CenteringRingOutsideDia.223 424253 4261 228273 eDia.CenteringRingOutsideDia.2622–223 4243 4273 4273 4301 226253 42729327 8281 2293 4323 428273 42931353 8293 4301 2313 4343 430293 4311 4331 4371 232313 4321 2337 83732313 4331 2351 2395 834333 4341 2357 83934333 4351 2371 2415 836353 4361 2381 8411 436353 4375 8395 84438373 4381 2401 8433 438371 2381 240411 240393 4401 2421 8453 440391 2401 4421 8437 842413 4421 2441 44842411 2421 4441 8457 844433 4441 2463 8501 444431 2441 2461 2483Sealing Element131Sealing Element4645 446 248 852 44645 846 848 8501 848473 4481 2503 8541 248475 8485 8505 8521 850493 4501 2521 2561 250495153541 452513 4521 2541 2583 452525355561 454531 2541 2561 26154531 4551 4571 4583 456551 2561 2581 2631 456551 4571 4591 4603 458571 2581 2601 2651 25857591 2611 2623 460591 2601 2621 2671 26060611 2631 2643 4533DIMENSIONS IN INCHES.The above style CG gasket dimensions are also suitable tar NPS 26 to 48 class 150 and NPS 26 to 36 class 300 BS 3293 flanges.14
STYLE CG & CGI TO ASME B16.20TO SUIT LARGE DIAMETER ASME B16.47 SERIES A FLANGESCLASS 400-600 -900TABLE7.1CLASS 23 4CLASS 600OutsideDia.CenteringRingOutsideDia.243 4275 8Sealing 2–223 4CLASS 900*Sealing ElementOutsideDia.CenteringRingOutsideDia.243 4287 ia.CenteringRingOutsideDia.Sealing Element22––––12626272932 42625 2272934 826262729343 428282931351 828271 229313628282931371 430293 4311 4331 4371 430293 4311 4331 4381 430301 4311 4331 4393 43232331 2351 2391 23232331 2351 2401 43232331 2351 2421 43434351 2371 2411 23434351 2371 2421 43434351 2371 2443 436361 8375 8395 84436361 8375 8395 8441 236361 4373 4393 4471 438371 2381 4401 4421 438371 23941431 238393 4403 4423 4471 440393 8403 8423 8443 840393 4411 4431 4451 240413 4431 4451 4491 442413 8423 8443 8463 84242431 2451 24842433 4451 4471 4511 444431 2441 2461 2481 244433 4453 4473 45044451 2471 2491 2537 846464749503 446453 4473 4493 4521 446485052561 248471 249515348485052543 448505254581 250491 25153551 ��–––52545658601535511151 253 4155 4157 4359 455 4157 4159 4361 457 4159 4161 4363 4157 4359 4361 4363 4166 456154 4156 4585860160 456 4158 4160 2362 458 4160 4162 2364 461 463 265 268 4DIMENSIONS IN INCHES.NOTE:There are no class 900 flanges NPS 50 and larger.*lnner rings are mandatory for class 900 flanges, NPS 26 to 48.For ASME B16.47 Series A flanges NPS 12 to 24 use gasket dimensions listed on page 10, for ASME B 16.5 flanges.The above style CG gasket dimensions are also suitable for NPS 26 to 36 class 400 and 600 BS 3293 flanges.15
STYLE CG & CGITO SUIT LARGE DIAMETER FLANGESCLASS 75-125TABLE8CLASS 75 - WELD-NECK AND BLIND†CLASS 75 - SLIP-ON AND BLIND†CLASS a.2627281 4301 826261 2273 4283 426261 2273 4301 22829301 4321 828281 2293 4303 428281 2293 4323 43031321 4341 830301 2313 4323 430301 2313 4343 432331 8343 8363 832321 2333 4351 832321 2337 837Sealing Element34135 8136 2338 8Sealing ElementNom.PipeSizeInsideDia.34134 235 837 83434 23636 237 839 83636 238 8411 438–––38–––38381 2401 8433 440–––40–––40401 2421 8453 442431 4443 4465 842421 244455 842421 2441 44844–––44–––44441 2463 8501 446–––46–––46461 2483 8521 448491 4507 8525 848481 2501 8515 848481 2503 8541 250–––50–––50501 2521 2561 252–––52–––52521 2541 2583 454553 8573 4591 854541 2563 8577 854541 4561 2616061 863 865 86060 262 263 86060 262 2671 266671 2691 2713 466661 2681 2701 46671723 4741 472731 2751 2773 472721 2741 2761 472771 2791 4803 484–––84–––84901 492931 296–––96–––961031043 41061 43311711DIMENSIONS IN INCHES.GASKET THICKNESS. TO ENSURE GREATER GASKET STABILITY; FOR LARGER DIAMETER ABOVE 39” (1000 mm)WE RECOMMEND 7.2 mm (0.285 in) THICK GASKETS WITH 5.O mm (0.197 in) THICK GUIDE RINGS, OR 6.4 mm (0.250 in)THICK GASKETS WITH 4.8 mm (O.188 in) THICK GUIDE RINGS.†OUTSIDE DIAMETER, FACING DIAMETER AND DRILLING OF CLASS 75 BLIND FLANGES DEPEND ON WHETHERTHEY ARE TO BE USED AGAINST WELD-NECK OR SLIP-ON FLANGES.*WHERE STYLE CGI GASKETS ARE REQUIRED, INNER RING I.D. MUST BE SPECIFIED. STANDARD PRACTICE IS TOUSE INNER RINGS WITH AN I.D. THAT IS 3.2 mm (0.125 in.) GREATER THAN THE FLANGE BORE.1639135 840 811738 231137 817136117Sealing Element
STYLE CG & CGITO SUIT LARGE DIAMETER FLANGESCLASS 175-350TABLE8.1CLASS 250CLASS 175CLASS a.26261 2273 4291 826261 2273 4323 426261 2273 4295 828281 2293 4311 828281 2293 4351 428281 2293 4315 830301 2313 4333 830301 2313 4371 230301 2313 4337 832321 2333 4353 832321 2337 8393 432321 2337 8357 834341 2357 8371 234341 2357 8413 434341 2357 8377 836361 2377 8391 236361 2381 84436361 2381 8403 838381 2397 8411 238381 2401 84638381 2401 8423 840401 242431 240401 2421 8481 440401 2421 8443 842421 244457 842421 2441 4503 442421 2441 4465 844441 246477 844441 2463 85344441 2463 84946461 248497 846461 2483 8551 446461 2483 851Sealing Element4850148 2150 21150 8152 43Sealing ElementNom.PipeSizeInsideDia.133Sealing Element74848 250 858 44848 250 853750–––50–––151 853 8135252 254 856 852–––5252 254 4573 854541 2563 8581 854–––54541 2561 2593 860601 2621 2641 860–––60601 2621 2653 866671 8687 8701 866–––66661 2681 2721 272733 8751 8765 872–––72751 477781 28487883 4901 484–––84883 8901 8915 896991003 41021 496–––961033 41021 210411DIMENSIONS IN INCHES.17
STYLE CG & CGI TO BS3381TO SUIT BS1560 & ASME B16.5 FLANGESTABLE9CLASS 300 to 1500CLASS 150NominalPipe �1 163 4INSIDEDIA. 813 41 4*11 471 83 ELEMENTCENTERING
STYLE CG & CGI* TO ASME B16.20 TO SUIT ASME B16.5 FLANGES In accordance with ASME B16.20, Inner Rings are mandatory for the following flange designations (see Toble 3). Class 900 - NPS 24 to 48 Class 1500 - NPS 12 to NPS 24 Class 2500 - NPS 4 to NPS 12 ASME B16.20 does not
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Spiral Wound Gasket is the precision engineered solution to such problems, meeting the most exacting conditions of both temperature and pressure in flanged joints and similar assemblies and against virtually
The concept of spiral wound gasket construction was orig-inated by Flexitallic in 1912, inaugurating the beginning of a new era in safe, effective sealing. The primary purpose for this development was the increasingly severe tempera-tures and pressures used by U.S. refinery operators in the
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KAMMPROFILE GASKET The Kammprofile gasket Flexpro has the compressibility of a sheet gasket for low sealing stress, along with the bolt tightness of a spiral wound gasket—plus the handling ease of a solid metal gasket and its resistance to buckling. This gasket f
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