FLANGES 2 THREADED, BLIND & WELD NECK FLANGES (AS PER API-6A) (1-1) PRESSURE RATING:- API 6B-2000 PSI WP ( With R or RX type Ring Gasket) SIZE OD T ØK PCD N Ød L ØX LN ØHL R/RX 21 ⁄16 6.50 1.31 4.25 5 8 0.75 1.75 3.31 3.19 2.38 23 29 ⁄16 7.50 1.44 5 5.88 8 0.88 1.94 3.94 3.44 2.88 26 31 ⁄8 8.25 1.56 5.75 6.62 8 0.88 2.12 4.62 3.56 3.50 31 41 ⁄16 10.75 1.81 6.88 8.50 8 1.00 2.44 6.00 4.31 4.50 37 51 ⁄8 13 2.06 8.25 10.50 8 1.12 2.69 7.44 4.81 5.56 41 71 ⁄16 14 2.19 9.5 11.50 12 1.12 2.94 8.75 4.94 6.63 45 9 16.5 2.50 11.88 13.75 12 1.25 3.31 10.75 5.56 8.63 49 11 20 2.81 14 17 16 1.38 3.69 13.50 6.31 10.75 53 135 ⁄8 22 2.94 16.25 19.25 20 1.38 3.94 15.75 - - 57 163 ⁄4 27 3.31 20 23.75 20 1.62 4.50 19.50 - - 65 211 ⁄4 32 3.88 25 28.50 24 1.75 5.38 24.00 - - 73 (1-2) PRESSURE RATING:- API 6B-3000 PSI WP ( With R or RX type Ring Gasket) 21 ⁄16 8.50 1.81 4.88 6.50 8 1.00 2.56 4.12 4.31 2.38 24 29 ⁄16 9.62 1.94 5.38 7.50 8 1.12 2.81 4.88 4.44 2.88 27 31 ⁄8 9.50 1.81 6.12 7.50 8 1.00 2.44 5.00 4.31 3.50 31 41 ⁄16 11.50 2.06 7.12 9.5 8 1.25 3.06 6.25 4.81 4.50 37 51 ⁄8 13.75 2.31 8.50 11.00 8 1.38 3.44 7.50 5.31 5.56 41 71 ⁄16 15.00 250 9.50 12.50 12 1.25 3.69 9.25 5.81 6.63 45 9 18.50 2.81 12.12 15.50 12 1.50 4.31 11.75 6.69 8.63 49 11 21.50 3.06 14.25 18.50 16 1.50 4.56 14.50 7.56 10.75 53 135 ⁄8 24.00 3.44 16.50 21.00 20 1.50 4.94 16.50 - - 57 163 ⁄4 27.75 3.94 20.62 24.25 20 1.75 5.06 20.00 - - 66 203 ⁄4 33.75 4.75 25.50 29.25 20 2.12 6.75 24.50 - - 74 (1-3) PRESSURE RATING:- API 6B-5000 PSI WP ( With R or RX type Ring Gasket) 21 ⁄16 8.50 1.81 4.88 6.50 8 1.00 2.56 4.12 4.31 2.38 24 29 ⁄16 9.62 1.94 5.38 7.50 8 1.12 2.81 4.88 4.44 2.88 27 31 ⁄8 10.50 2.19 6.62 8.00 8 1.25 3.19 5.25 4.94 3.50 35 41 ⁄16 12.25 244 7.62 9.50 8 1.38 3.88 6.38 5.19 4.50 39 51 ⁄8 14.75 3.19 9.00 11.50 8 1.62 4.44 7.75 6.4 5.56 44 71 ⁄16 15.50 3.62 9.75 12.50 12 1.50 5.06 9.00 7.13 6.63 46 9 19 4.06 12.50 15.50 12 1.75 6.06 11.50 8.81 8.63 50 11 23 4.69 14.63 19.00 12 2.00 6.69 14.50 10.44 10.75 54 1 PAGE 7 *All dimensions are in inches For Ring Gasket number and PCD of Ring Groove see Page 19, for Ring Groove dimensions see Page 21, 22. Groove for Ring Gasket (R) No. of Holes (N) and DIA (Ød) ØX ØK P.C.D O.D Groove for Ring Gasket (R) No. of Holes (N) and DIA (Ød) ØK P.C.D O.D ØK P.C.D O.D Groove for Ring Gasket (R/RX) ØHL T LN T T L Threaded Flange (Fig. 1) Weld Neck Flange (Fig. 2) Blind Flange (Fig. 3)