ASME B16.5 Flanges

1 Class 300, welding neck , Slip-On and , Ser. AASME FlangesWeld neck , Slip-On, Socket Weld, Threaded, Lap Joint, " - 24" Class 150, 300, 400, 600, 900, 1500 and 2500 NOTE: Reducing Flanges are available in all types and order a reducing flange , state the smaller size first, then theoutside diameter of the larger size. Example: 1" X 71 2" SO RF reducing would be a 3" X 1" Slip-on, Raised FacedReducing. Or, to simplify, just state the actual pipe sizes in orderof larger to smaller. Example: 3" X 1" Slip-on, Raised Faced, A Stronger America By SupplyingQuality Products Made In The Revised 1-99 3 Class 150 ASME 1-99 Thru HubCommon DimensionsTo be specified by 150 ASME 1-99 1 1 1 1 Weight(1/2" TO 3" ONLY)Class 300 ASME 1-99 Thru HubCommon DimensionsTo be specified by 300 ASME 1-99 1 1 1 1 Weight(1/2" TO 3" ONLY)

2 Class 400 ASME 1-99 " THRU 31/2" Thru HubCommon DimensionsTo be specified by and length through hub do not include 1/4" raised 400 ASME 1-99 WeightSee 300 Class dimensions for dimensions Q and D .ARE IDENTICAL WITH CLASS (1/2" TO 3" ONLY)Class 600 ASME 1-99 Thru HubCommon DimensionsTo be specified by and length through hub do not include 1/4" raised 600 ASME 1-99 1 1 1 1 DrillingApprox.

3 WeightSee 300 Class dimensions for dimensions Q and D .(1/2" TO 3" ONLY)Thickness and length through hub do not include 1/4" raised 900 ASME 1-99 12 Revised 8-98 " THRU 21/2" Thru HubCommon DimensionsTo be specified by 900 ASME 1-99 WeightSee 300 Class dimensions for dimensions Q and D .ARE IDENTICAL WITH CLASS (1/2" TO 3" ONLY)Class 1500 ASME 1-99 Thru HubCommon DimensionsTo be specified by and length through hub do not include 1/4" raised 1500 ASME 1-99 1 1 1 89097514.

4 1150130016. 1475175018. 1775222520. 2825362524 DrillingApprox. WeightSee 300 Class dimensions for dimensions Q and D .(1/2" TO 2 1/2" ONLY)(1/2" TO 2 1/2" ONLY)Class 2500 ASME 1-99 16 Class 2500 Slip-Ons are not included in ASME and length through hub do not include 1/4" raised Thru HubCommon DimensionsTo be specified by 2500 ASME 1-99 WeightSee 300 Class dimensions for dimensions Q and D . 1 1 1 Ser. A, Ser. BINDUSTRY STANDARDand AWWA FlangesWeld neck , Slip-On, 150 to Class 900 The following section is in order by pressure class due to the overlapping dimensions of some turn to the pressure class required and find the dimensional standard of your 1-99 18 Class , Ser.

5 B(formerly API-605)Revised 1-99 be specified by , Ser. BRevised 1-99 WeightClass 75 INDUSTRY STANDARDR evised 1-99 Baseof 75 INDUSTRY STANDARDR evised 1-99 WeightClass 75 INDUSTRY STANDARDR evised 1-99 Baseof be specified by be specified by 75 INDUSTRY STANDARDR evised 1-99 WeightClass 125 LW, AWWA C207 CLASSES B, DRevised 1-99 LW,B, Thru HubClass 125 LW, AWWA C207 CLASSES B, DRevised 1-99 26 BoltCircleB125 LW,B & 1 1 1 1 1 1 3 3 3 3 5 7 WeightBolt Hole 125 & AWWA C207 CLASS ERevised 1-99 Thru HubTo be specified by 125 & AWWA C207 CLASS ERevised 1-99 WeightClass , Ser.

6 ARevised 1-99 (Min.) *SP-44 Class 150 blinds and welding neck Flanges have the same available upon 12" thru 24" identical to ASME except when a single taper hub is be specified by , Ser. BRevised 1-99 (Min.) available upon be specified by 175 INDUSTRY STANDARDR evised 1-99 atBevelALength Thru HubYBoreThicknessCNotes: Sizes are nominal insidediameters of pipe or shell used with welding neck Flanges , Notes:and nominal outsidediameters of pipe or shell used with Slip-On be specified by be specified by 175 INDUSTRY STANDARDR evised 1-99 WeightClass , Ser.

7 ARevised 1-99 12" thru 24" identical to ASME except when a single taper hub is be specified by , Ser. BRevised 1-99 (Min.) be specified by 350 INDUSTRY STANDARDR evised 1-99 Thru HubYBoreThicknessCNotes: Sizes are nominal insidediameters of pipe or shell used with welding neck Flanges , Notes:and nominal outsidediameters of pipe or shell used with Slip-On :Diameter of hub at Bevel to be specified by purchaser.. To be specified by 350 INDUSTRY STANDARDR evised 1-99 72 Class Series Series BRevised 1-99 thru Hub does not include 1/4" Raised Ser ASizes 12" thru 24" identical to ASME except when a single taper hub is Ser be specified by thru Hub does not include 1/4" Raised Ser AandSer B are identical in sizes 38" thru 60".

8 Be specified by Series Series BRevised 1-99 38 Class Series Series BRevised 1-99 thru Hub does not include 1/4" Raised Ser ASizes 12" thru 24" identical to ASME except when a single taper hub is Ser be specified by Series Series BRevised 1-99 thru Hub does not include 1/4" Raised Ser AandSer B are identical in sizes 38" thru 60". be specified by Series Series BRevised 1-99 thru Hub does not include 1/4" Raised Ser ASizes 12" thru 24" identical to ASME except when a single taper hub is Ser be specified by Series Series BRevised 1-99 thru Hub does not include 1/4" Raised Ser AandSer B are identical in sizes 38" thru 48".

9 Be specifiedby InformationSpecial FacingsBolt and Stud DimensionsDimensional TolerancesBore ChartRevised 1-99 64 Typical FacingsFor Steel Pipe FlangesRevised 1-99 65 NominalPipeSizeRaised FaceLarge MaleLarge Tongue;also Pipe LapASmallMaleBSmallTongueCLargeFemale, JointDIMENSIONS are shown in " RAISED FACE (Fig. 1) is standard for 150 and 300 lb. WeldingNeck, Slip-On, Screwed and Blind Flanges , and is included in theflange " RAISED FACE (Fig. 1) is standard for 400 lb. and heavierWelding neck , Slip-On, Screwed and Blind Flanges , and is notincluded in the flange JOINT Flanges are commonly furnished without a raised face,the rolled lap on the pipe itself forming a raised contact surface (seeFig.)

10 2). Large Female and Large Groove Class 150 in these sizes will befull faced to of Dimensions Vary With TheFlange Pressure Pages 82, 83, and Dimensions and NotesTypical FacingsFor Steel Pipe FlangesRevised 1-99 66 Fig. 1. RAISED FACEFig. 3. FLAT FACEFig. 5. LARGE MALE AND FEMALEFig. 7. LARGE TONGUE AND GROOVEFig. 2. LAP JOINTFig. 4. RING JOINTFig. 6. SMALL MALE AND FEMALEFig. 8. SMALL TONGUE AND GROOVE150 Dimensions for Ring JointsASME 1-99 67 NominalPipeSizePitch Dia. ofRing andGroovePDia. FlangesWhen Jointis CompressedFor 150 LB. Flanges1 Dia.