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Class 300, Welding Neck, Slip-On and ThreadedB16.47, Ser. AASME B16.5 FlangesWeld Neck, Slip-On, Socket Weld, Threaded, Lap Joint, Blind.1/2" - 24" Class 150, 300, 400, 600, 900, 1500 and 2500NOTE: Reducing flanges are available in all types and pressures.To order a reducing flange, state the smaller size first, then theoutside diameter of the larger size. Example: 1" X 71 2" O.D.150 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,Reducing.Building A Stronger America By SupplyingQuality Products “Made In The U.S.A.”Revised 1-993
Class 150ASME B16.5Common ketB1To be specified by purchaser.NominalSizeBoreLength Thru 2.193.123.443.814.064.38Revised 1-994
Class 150ASME B16.5(1/2" TO 3" b Approx. nThrd.Sock. Revised 1-99/4/211/21/215
Class 300ASME B16.5Common cketB1To be specified by purchaser.NominalSizeBoreLength Thru 4.004.384.755.125.506.00Revised 1-996
Class 300ASME B16.5(1/2" TO 3" 752.883.25Dia.CounterBore Thd.QDepthofSocketDDia.Hub .1227.62Approx. nThrd.Sock. 6810121416182024Revised 1-99/4/211/21/217
Class 400ASME B16.5Common 500.500.500.500.50WeldingNeckSocketB1To be specified by 10.8812.8814.1416.1618.1820.2024.25Length Thru S 1/2" THRU ss and length through hub do not include 1/4" raised face.Revised 1-998
Class 400ASME B16.5(1/2" TO 3" ONLY)DrillingMin.ThreadLengthTDia.Hub atBevelAHubDia.XBoltCircleARE IDENTICAL WITH CLASS .00Approx. 435789125175230295350425620Slip-onThrd.Sock. 0370455587890456810121416182024See 300 Class dimensions for dimensions “Q” and “D”.Revised 1-999
Class 600ASME B16.5Common cketB1To be specified by purchaser.NominalSizeBoreLength Thru 4.625.005.506.006.507.25Thickness and length through hub do not include 1/4" raised face.Revised 1-9910
Class 600ASME B16.5(1/2" TO 3" 2.50Dia.Hub 251.381.381.501.621.751.752.00Approx. p-onThrd.Sock. Size/2/4131112233456810121416182024/4/211/21/21See 300 Class dimensions for dimensions “Q” and “D”.Revised 1-9911
Class 900ASME B16.5Common etB1To be specified by 8.7210.8812.8814.1416.1618.1820.2024.25Length Thru intY3SIZES 1/2" THRU 50Thickness and length through hub do not include 1/4" raised face.Revised 8-981-9912
Class 900ASME B16.5(1/2" TO 3" ONLY)DrillingMin.ThreadLengthTDia.Hub atBevelAHubDia.XBoltCircleARE IDENTICAL WITH CLASS 04.0024.0029.5035.50Approx. . 4See 300 Class dimensions for dimensions “Q” and “D”.Revised 1-9913
Class 1500ASME B16.5Common Dimensions/2/41311 1/41 1/222 ckSocketB1To be specified by purchaser.NominalSizeBoreLength Thru 10.8811.5013.00Thickness and length through hub do not include 1/4" raised face.Revised 1-9914
Class 1500ASME B16.5(1/2" TO 2 1/2" ONLY)(1/2" TO 2 1/2" b 14.5017.7519.5021.7523.5025.2530.00Approx. 301652754556909401250162520503325Slip-onThrd.Sock. 53625NominalSize/2/411 1/41 1/222 1/2345681012141618202413See 300 Class dimensions for dimensions “Q” and “D”.Revised 1-9915
Class 2500ASME B16.5Common Dimensions/2/41311 1/41 1/222 190.250.310.310.380.440.440.500.500.500.50Class 2500 Slip-Ons are not included in ASME B16.5 specifications.Thickness and length through hub do not include 1/4" raised face.WeldingNeckSocketB1To be specified by purchaser.NominalSizeBoreLength Thru Revised 1-9916
Class 2500ASME B16.5DrillingMin.ThreadLengthTDia.Hub 3.754.505.256.508.009.2512.0014.7517.38Approx. nThrd.Sock. 311 1/41 1/222 1/2345681012See 300 Class dimensions for dimensions “Q” and “D”.Revised 1-9917
ASME B16.47 Ser. A, Ser. BINDUSTRY STANDARDand AWWA FlangesWeld Neck, Slip-On, Blind.Class 150 to Class 900The following section is in order by pressure class due to theoverlapping dimensions of some standards.Simply turn to the pressure class required and find thedimensional standard of your choice.Revised 1-9918
Class 75B16.47, Ser. B(formerly 0038.0040.69
ASME B16.5 Flanges Weld Neck, Slip-On, Socket Weld, Threaded, Lap Joint, Blind. 1/2" - 24" Class 150, 300, 400, 600, 900, 1500 and 2500 NOTE: Reducing flanges are available in all types and pressures. To order a reducing flange, state the smaller size first, then the outside diameter of the larger size. Example: 1" X 7 1 2" O.D. 150 SO RF reducing would be a 3" X 1" Slip-on, Raised Faced .