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Class 1500WN Flanges

Special One or Two Piece Ring and Orifice Plate Assembly - Groove Detail

Ring Type Joint Weld Neck Orifice Flanges Class 400 - 2500

Raised Face Weld Neck Orifice Flanges Class 400 - 2500

(Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions)
Drilling Ring Type Joint
Nom Size OD Thickness OD of RF Dia at Base Dia Bevel LTH Dia of Pressure Connection Bolt Circle Hole Dia # of holes Bolt Dia Grove # Pitch Dia Groove Depth Groove Width Rad at Bottom Spec Oval RH
O C R X A Y TT P E F r max W
in 1 5.88 1.5 2 2.06 1.32 3.25  1/4 4 1 4  7/8 R16 2 0.25 0.344 0.03 1
mm 149.4 38.1 50.8 52.3 33.5 82.6 6.4 101.6 25.4 22.2 50.8 6.35 8.738 0.8 25.4
in 1 1/2 7 1.5 2.88 2.75 1.9 3.5  1/4 4.88 1.12 4 1 R20 2.688 0.25 0.344 0.03 1
mm 177.8 38.1 73.2 69.9 48.3 88.9 6.4 124 28.4 25.4 68.275 6.35 8.738 0.8 25.4
in 2 8.5 1.5 3.62 4.12 2.38 4  1/4 6.5 1 8  7/8 R24 3.75 0.312 0.469 0.03 1.06
mm 215.9 38.1 91.9 104.6 60.5 101.6 6.4 165.1 25.4 22.2 95.25 7.925 11.913 0.8 26.9
in 2 1/2 9.62 1.62 4.12 4.88 2.88 4.12  1/4 7.5 1.12 8 1 R27 4.25 0.312 0.469 0.03 1.06
mm 244.3 41.1 104.6 124 73.2 104.6 6.4 190.5 28.4 25.4 107.950 7.925 11.913 0.8 26.9
in 3 10.5 1.88 5 5.25 3.5 4.62  3/8 8 1.25 8 1 1/8 R35 5.375 0.312 0.469 0.03 1.06
mm 266.7 47.8 127 133.4 88.9 117.3 9.5 203.2 31.8 28.6 136.525 7.925 11.913 0.8 26.9
in 4 12.25 2.12 6.19 6.38 4.5 4.88  1/2 9.5 1.38 8 1 1/4 R39 6.375 0.312 0.469 0.03 1.06
mm 311.2 53.8 157.2 162.1 114.3 124 12.7 241.3 35.1 31.8 161.925 7.925 11.913 0.8 26.9
in 6 15.5 3.25 8.5 9 6.63 6.75  1/2 12.5 1.5 12 1 3/8 R46 8.312 0.375 0.531 0.06 1.12
mm 393.7 82.6 215.9 228.6 168.4 171.5 12.7 317.5 38.1 34.9 211.125 9.525 13.487 1.5 28.4
in 8 19 3.62 10.62 11.5 8.63 8.38  1/2 15.5 1.75 12 1 5/8
mm 482.6 91.9 269.7 292.1 219.2 212.9 12.7 393.7 44.5 41.3
in 10 23 4.25 12.75 14.5 10.75 10  1/2 19 2 12 1 7/8
mm 584.2 108 323.9 368.3 273.1 254 12.7 482.6 50.8 47.6
in 12 26.5 4.88 15 17.75 12.75 11.12  1/2 22.5 2.12 16 2
mm 673.1 124 381 450.9 323.9 282.4 12.7 571.5 53.8 50.8
in 14 29.5 5.25 16.25 19.5 14 11.75  1/2 25 2.38 16 2 1/4
mm 749.3 133.4 412.8 495.3 355.6 298.5 12.7 635 60.5 57.2
in 16 32.5 5.75 18.5 21.75 16 12.25  1/2 27.8 2.6 16 2 1/2
mm 825.5 146.1 469.9 552.1 406.4 311.2 12.7 704.9 66.5 63.5
in 18 36 6.38 21 23.5 18 12.88  1/2 30.5 2.88 16 2 3/4
mm 914.4 162.1 533.4 596.9 457.2 327.2 12.7 774.7 73.2 69.9
in 20 38.75 7 23 25.25 20 14  1/2 32.75 3.12 16 3
mm 984.3 177.8 584.2 641.4 508 355.6 12.7 831.9 79.2 76.2
in 24 46 8 27.25 30 24 16  1/2 39 3.62 16 3 1/2
mm 1168.4 203.2 692.2 762 609.6 406.4 12.7 990.6 91.9 88.9

(1) Bore diameter to be specified by purchaser
(2) Other NPT and SW connections available upon request.
Welding Neck Orifice Class 1500 Flange PDF (for printing).