Pipe Flange Data Hub Data Raised Face Drilling Data Weight A B C D E F G H I J Outside Dia In Mm Overall Dia In Mm Counter Bore In Mm Flange Thickness min In Mm Overall Length In Mm Threaded Length min In Mm Hub Dia In Mm Face Dia In Mm Number of Holes Bolt Hole Dia In Mm Dia of Circle of Holes In Mm Kg/ Piece ½ 0.840 3.750 0.930 0.560 0.880 0.620 1.500 1.380 4 0.620 2.620 0.64   21.30 95.30 23.60 14.20 22.30 15.70 38.10 35.00   15.70 66.55   ¾ 1.050 4.620 1.140 0.620 1.000 0.620 1.880 1.690 4 0.750 3.250 1.12   26.70 117.3 29.00 15.70 25.40 15.70 42.70 42.90   19.00 82.50   1 1.315 4.880 1.410 0.690 1.060 0.690 2.120 2.000 4 0.750 3.500 1.36   33.40 124.0 35.80 17.50 26.90 17.50 53.80 50.80   19.00 88.90   1 ¼ 1.660 5.250 1.750 0.750 1.060 0.810 2.500 2.500 4 0.750 3.880 1.68   42.20 133.4 44.40 19.00 26.90 20.60 63.50 63.50   19.00 98.50   1 ½ 1.900 6.120 1.990 0.810 1.190 0.880 2.750 2.880 4 0.880 4.500 2.49   48.30 155.4 50.50 20.60 30.20 22.30 69.85 73.15   22.30 114.3   2 2.375 6.500 2.500 0.880 1.310 1.120 3.310 3.620 8 0.750 5.000 2.87   60.30 165.1 63.50 22.30 33.20 28.40 84.00 91.90   19.00 127.0   2 ½ 2.875 7.500 3.000 1.000 1.500 1.250 3.940 4.120 8 0.880 5.880 4.32   73.00 190.5 76.20 25.40 38.10 31.70 100.0 104.6   22.30 149.3   3 3.500 8.250 3.630 1.120 1.690 1.250 4.620 5.000 8 0.880 6.620 5.85   88.90 209.6 92.20 28.40 42.90 31.70 117.3 127.0   22.30 168.1   3 ½ 4.000 9.000 4.130 1.190 1.750 1.440 5.250 5.500 8 0.880 7.250 7.34   101.6 228.6 104.9 30.20 44.40 36.50 133.3 139.7   22.30 184.1   4 4.500 10.00 4.630 1.250 1.880 1.440 5.750 6.190 8 0.880 7.880 9.61   114.3 254.0 117.6 31.70 47.70 36.50 146.0 157.2   22.30 200.1   5 5.563 11.00 5.690 1.380 2.000 1.690 7.000 7.310 8 0.880 9.250 12.3   141.3 279.4 144.5 35.00 50.80 42.90 177.8 185.7   22.30 234.9   6 6.625 12.50 6.750 1.440 2.060 1.810 8.120 8.500 12 0.880 10.62 15.6   168.3 317.5 171.4 36.50 52.30 45.90 206.2 215.9   22.30 269.7   8 8.625 15.00 8.750 1.620 2.440 2.000 10.25 10.62 12 1.000 13.00 24.2   219.1 381.0 222.3 41.10 61.90 50.80 260.3 269.7   25.40 330.2   10 10.75 17.50 10.88 1.880 2.620 2.190 12.62 12.75 16 1.120 15.25 34.1   273.0 444.5 276.3 47.70 66.55 55.60 320.5 323.8   28.40 387.3   12 12.75 20.50 12.94 2.000 2.880 2.380 14.75 15.00 16 1.250 17.75 49.8   323.8 520.7 328.7 50.80 73.15 60.45 374.6 381.0   31.70 450.8   14 14.00 23.00 14.19 2.120 3.000 2.500 16.75 16.25 20 1.250 20.25 69.9   355.6 584.2 360.4 53.80 76.20 63.50 425.4 412.7   31.70 514.3   16 16.00 25.50 16.19 2.250 3.250 2.690 19.00 18.50 20 1.380 22.50 88.1   406.4 647.7 411.2 57.15 82.50 68.30 482.6 469.9   35.00 571.5   18 18.00 28.00 18.19 2.380 3.500 2.750 21.00 21.00 24 1.380 24.75 109   457.2 711.2 462.0 60.45 88.90 69.85 533.4 533.4   35.00 628.6   20 20.00 30.50 20.19 2.500 3.750 2.880 23.12 23.00 24 1.380 27.00 134   508.0 774.7 512.8 63.50 95.2 73.15 587.2 584.2   35.00 685.8   24 24.00 36.00 24.19 2.750 4.190 3.250 27.62 27.25 24 1.620 32.00 201   609.6 914.4 614.4 69.85 106.4 82.50 701.5 692.1   41.10 812.8   Notes The thread conforms to ASME B1. 20.1 NTP threads as described in Section 10. (The only exceptions are small male and female plain face threaded flanges which use NPSL locknut threads) Class 300 and higher threaded flanges are counter-bored. Threads are chamfered to the counterbore at an angle of 450 (approx) Weights are based on manufacturer’s data and are approximate Flanges Welding Neck Flange Bores Pipe Flanges and Flanged Fittings Carbon and Stainless Steel Welding Flange Supplier Welding Neck flange Slip-On flange Blind flange Exporter Welding Neck flange Manufacturer Forged Flanges supplier Raised- Face Flanges Socket Weld flange Traders Threaded flange Back-Up Flange Blind flange Maker Stainless Steel Pipe Flange Socket weld Flange carbon steel plate Flange Exporter carbon steel Flange Titanium Flanges Incolloy Flanges Cupro nickel Flanges Niobium Flanges Nimonics Flanges HR Alloy Flanges Alloy 20 Flanges Monel Flanges Inconel Flanges Stainless steel Flanges Super Duplex Flanges Flanges Importers Supplier in India Flanges Flanges Exporter in Mumbai Flanges Stockist Supplier of Flangess Stockiest Flanges Flanges Manufacturers Flanges Weldneck Flanges Slipon Flanges Tantalum Flanges Nickel Flanges Zirconium Flanges Hastelloy Flanges Blind Flanges Socket Weld Flanges Lap Joint Flanges Spectacles Flanges Ringjoint Flanges Orifcase Flanges Long Weldneck Flanges Deck Flanges Back up Flanges threaded Flanges Raised Face Flanges ANSI B 16.5 Class 150 lb Flanges 300 Flanges 600 Flanges 900 Flanges 1500 Flanges 2500 Flanges Din Flanges Windsro Exportes All Flange Exports From india