Slip On Orifice Class 300 Flanges

Slip-On Orifice Class 300

(Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions)
Drilling
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
O C R X B Y TT
in 1 4.88 1.5 2 2.12 1.36 1.88  1/4 3.5 0.69 4  5/8
mm 124 38.1 50.8 53.8 34.5 47.8 6.4 88.9 17.5 15.9
in 1 1/2 6.12 1.5 2.88 2.75 1.95 1.88  1/4 4.5 0.81 4  3/4
mm 155.4 38.1 73.2 69.9 49.50 47.8 6.4 114.3 20.6 19.1
in 2 6.5 1.5 3.62 3.31 2.44 1.94  1/4 5 0.69 8  5/8
mm 165.1 38.1 91.9 84.1 62.0 49.3 6.4 127 17.5 15.9
in 2 1/2 7.5 1.5 4.12 3.94 2.94 2.00  1/4 5.88 0.81 8  3/4
mm 190.5 38.1 104.6 100.1 74.7 50.8 6.4 149.4 20.6 19.1
in 3 8.25 1.5 5 4.62 3.57 2.06  3/8 6.62 0.81 8  3/4
mm 209.6 38.1 127 117.3 90.7 52.3 9.5 168.1 20.6 19.1
in 4 10 1.5 6.19 5.75 4.57 2.12  1/2 7.88 0.81 8  3/4
mm 254 38.1 157.2 146.1 116.1 53.8 12.7 200.2 20.6 19.1
in 6 12.5 1.5 8.5 8.12 6.72 2.12  1/2 10.62 0.88 12  3/4
mm 317.5 38.1 215.9 206.2 170.7 53.8 12.7 269.7 22.4 19.1
in 8 15 1.62 10.62 10.25 8.72 2.44  1/2 13 1 12  7/8
mm 381 41.1 269.7 260.4 221.5 62.0 12.7 330.2 25.4 22.2
in 10 17.5 1.88 12.75 12.62 10.88 2.62  1/2 15.25 1.12 16 1   
mm 444.5 47.8 323.9 320.5 276.4 66.5 12.7 387.4 28.4 25.4
in 12 20.5 2 15 14.75 12.88 2.88  1/2 17.75 1.25 16 1 1/8
mm 520.7 50.8 381 374.7 327.2 73.2 12.7 450.9 31.8 28.6
in 14 23 2.12 16.25 16.75 14.14 3.00  1/2 20.25 1.25 20 1 1/8
mm 584.2 53.8 412.8 425.5 359.2 76.2 12.7 514.4 31.8 28.6
in 16 25.5 2.25 18.5 19 16.16 3.25  1/2 22.5 1.38 20 1 1/4
mm 647.7 57.2 469.9 482.6 410.5 82.6 12.7 571.5 35.1 31.8
in 18 28 2.38 21 21 18.18 3.5  1/2 24.75 1.38 24 1 1/4
mm 711.2 60.5 533.4 533.4 461.8 88.9 12.7 628.7 35.1 31.8
in 20 30.5 2.5 23 23.12 20.20 3.75  1/2 27 1.38 24 1 1/4
mm 774.7 63.5 584.2 587.2 513.1 95.3 12.7 685.8 35.1 31.8
in 24 36 2.75 27.25 27.62 24.25 4.19  1/2 32 1.62 24 1 1/2
mm 914.4 69.9 692.2 701.5 616 106.4 12.7 812.8 41.1 38.1

(1)- Other NPT and SW connections available upon request

Welding Neck Orifice Class 300SO Flange PDF (for printing).