Dimensions Ring Joint Facings
Ring Type Joint Flange is a method of ensuring leak proof flange connection at high pressures. A metal ring is compressed into a hexagonal groove on the face of the flange to make the seal.
This jointing method can be employed on Weld Neck, Slip-on and Blind Flange.
This jointing method can be employed on Weld Neck, Slip-on and Blind Flange.
Dimensions Ring Joint Facings
Nominal Size | Groove Dimensions | Diameter of Raised Portion, K | ||||||||||||||
Class 150 NPS | Class 300 NPS | Class 400 NPS | Class 600 NPS | Class 900 NPS | Class 1500 NPS | Class 2500 NPS | Groove Number | Pitch Diameter, P | Depth, E | Width, F | Radius at Bottom, R | Class 150 NPS | Class 300, 600 NPS | Class 900 NPS | Class 1500 NPS | Class 2500 NPS |
_ | 1/2 | _ | 1/2 | _ | _ | _ | R11 | 34.14 | 5.54 | 7.14 | 0.8 | 51.0 | ||||
_ | _ | _ | _ | _ | 1/2 | _ | R12 | 39.67 | 6.35 | 8.74 | 0.8 | 60.5 | ||||
_ | 3/4 | _ | 3/4 | _ | _ | 1/2 | R13 | 42.88 | 6.35 | 8.74 | 0.8 | 63.5 | 65.0 | |||
_ | _ | _ | _ | _ | 3/4 | _ | R14 | 44.45 | 6.35 | 8.74 | 0.8 | 66.5 | ||||
1 | _ | _ | _ | _ | _ | _ | R15 | 47.63 | 6.35 | 8.74 | 0.8 | 63.5 | ||||
1 | _ | 1 | _ | 1 | 3/4 | R16 | 50.80 | 6.35 | 8.74 | 0.8 | 70.0 | 71.5 | 73.0 | |||
1 1/4 | _ | _ | _ | _ | _ | _ | R17 | 57.15 | 6.35 | 8.74 | 0.8 | 73.0 | ||||
1 1/4 | _ | 1 1/4 | _ | 1 1/4 | 1 | R18 | 60.33 | 6.35 | 8.74 | 0.8 | 79.5 | 81.0 | 82.5 | |||
1 1/2 | _ | _ | _ | _ | _ | _ | R19 | 65.07 | 6.35 | 8.74 | 0.8 | 82.5 | ||||
_ | 1 1/2 | _ | 1 1/2 | _ | 1 1/2 | _ | R20 | 68.27 | 6.35 | 8.74 | 0.8 | 90.5 | 92.0 | |||
_ | _ | _ | _ | _ | _ | 1 1/4 | R21 | 72.23 | 7.92 | 11.91 | 0.8 | 102.0 | ||||
2 | _ | _ | _ | _ | _ | _ | R22 | 82.55 | 6.35 | 8.74 | 0.8 | 102.0 | ||||
_ | 2 | _ | 2 | _ | _ | 1 1/2 | R23 | 82.55 | 7.92 | 11.91 | 0.8 | 108.0 | 114.0 | |||
_ | _ | _ | _ | _ | 2 | _ | R24 | 95.25 | 7.92 | 11.91 | 0.8 | 124.0 | ||||
2 1/2 | _ | _ | _ | _ | _ | _ | R25 | 101.60 | 6.35 | 8.74 | 0.8 | 121.0 | ||||
_ | 2 1/2 | _ | 2 1/2 | _ | _ | 2 | R26 | 101.60 | 7.92 | 11.91 | 0.8 | 127.0 | 133.0 | |||
_ | _ | _ | _ | _ | 2 1/2 | _ | R27 | 107.95 | 7.92 | 11.91 | 0.8 | 137.0 | ||||
_ | _ | _ | _ | _ | _ | 2 1/2 | R28 | 111.13 | 9.53 | 13.49 | 0.8 | 149.0 | ||||
3 | _ | _ | _ | _ | _ | _ | R29 | 114.30 | 6.35 | 8.74 | 0.8 | 133.0 | ||||
_ | (2) | _ | (2) | _ | _ | _ | R30 | 117.48 | 7.92 | 11.91 | 0.8 | |||||
_ | 3 (2) | _ | 3 (2) | 3 | _ | _ | R31 | 123.83 | 7.92 | 11.91 | 0.8 | 146.0 | 156.0 | |||
_ | _ | _ | _ | _ | _ | 3 | R32 | 127.00 | 9.53 | 13.49 | 1.5 | 168.0 | ||||
3 1/2 | _ | _ | _ | _ | _ | _ | R33 | 131.78 | 6.35 | 8.74 | 0.8 | 154.0 | ||||
_ | 3 1/2 | _ | 3 1/2 | _ | _ | _ | R34 | 131.78 | 7.92 | 11.91 | 0.8 | 159.0 | ||||
_ | _ | _ | _ | _ | 3 | _ | R35 | 136.53 | 7.92 | 11.91 | 0.8 | 168.0 | ||||
4 | _ | _ | _ | _ | _ | _ | R36 | 149.23 | 6.35 | 8.74 | 0.8 | 171.0 | ||||
_ | 4 | 4 | 4 | 4 | _ | _ | R37 | 149.23 | 7.92 | 11.91 | 0.8 | 175.0 | 181.0 | |||
_ | _ | _ | _ | _ | _ | 4 | R38 | 157.18 | 11.13 | 16.66 | 1.5 | 203.0 | ||||
_ | _ | _ | _ | _ | 4 | _ | R39 | 161.93 | 7.92 | 11.91 | 0.8 | 194.0 | ||||
5 | _ | _ | _ | _ | _ | _ | R40 | 171.45 | 6.35 | 8.74 | 0.8 | 194.0 | ||||
_ | 5 | 5 | 5 | 5 | _ | _ | R41 | 180.98 | 7.92 | 11.91 | 0.8 | 210.0 | 216.0 | |||
_ | _ | _ | _ | _ | _ | 5 | R42 | 190.50 | 12.70 | 19.84 | 1.5 | 241.0 | ||||
6 | _ | _ | _ | _ | _ | _ | R43 | 193.68 | 6.35 | 8.74 | 0.8 | 219.0 | ||||
_ | _ | _ | _ | _ | 5 | _ | R44 | 193.68 | 7.92 | 11.91 | 0.8 | 229.0 | ||||
_ | 6 | 6 | 6 | 6 | _ | _ | R45 | 211.12 | 7.92 | 11.91 | 0.8 | 241.0 | 241.0 | |||
_ | _ | _ | _ | _ | 6 | _ | R46 | 211.14 | 9.53 | 13.49 | 1.5 | 248.0 | ||||
_ | _ | _ | _ | _ | _ | 6 | R47 | 228.60 | 12.70 | 19.84 | 1.5 | 279.0 | ||||
8 | _ | _ | _ | _ | _ | _ | R48 | 247.65 | 6.35 | 8.74 | 0.8 | 273.0 | ||||
_ | 8 | 8 | 8 | 8 | _ | _ | R49 | 269.88 | 7.92 | 11.91 | 0.8 | 302.0 | 308.0 | |||
_ | _ | _ | _ | _ | 8 | _ | R50 | 269.88 | 11.13 | 16.66 | 1.5 | _ | _ | 318.0 | _ | |
_ | _ | _ | _ | _ | _ | 8 | R51 | 279.40 | 14.27 | 23.01 | 1.5 | _ | _ | _ | 340.0 | |
10 | _ | _ | _ | _ | _ | _ | R52 | 304.80 | 6.35 | 8.74 | 0.8 | 330.0 | _ | _ | _ | _ |
_ | 10 | 10 | 10 | 10 | _ | _ | R53 | 323.85 | 7.92 | 11.91 | 0.8 | 356.0 | 362.0 | _ | _ | |
_ | _ | _ | _ | _ | 10 | _ | R54 | 323.85 | 11.13 | 16.66 | 1.5 | _ | _ | 371.0 | _ | |
_ | _ | _ | _ | _ | _ | 10 | R55 | 342.90 | 17.48 | 30.18 | 2.4 | _ | _ | _ | 425.0 | |
12 | _ | _ | _ | _ | _ | _ | R56 | 381.00 | 6.35 | 8.74 | 0.8 | 406.0 | _ | _ | _ | _ |
_ | 12 | 12 | 12 | 12 | _ | _ | R57 | 381.00 | 7.92 | 11.91 | 0.8 | 413.0 | 429.0 | _ | _ | |
_ | _ | _ | _ | _ | 12 | _ | R58 | 381.00 | 14.27 | 23.01 | 1.5 | _ | _ | 438.0 | _ | |
14 | _ | _ | _ | _ | _ | _ | R59 | 396.88 | 6.35 | 8.74 | 0.8 | 425.0 | _ | _ | _ | _ |
_ | _ | _ | _ | _ | _ | 12 | R60 | 406.40 | 17.48 | 33.32 | 2.4 | _ | _ | _ | 495.0 | |
_ | 14 | 14 | 14 | _ | _ | _ | R61 | 419.10 | 7.92 | 11.91 | 0.8 | 457.0 | _ | _ | _ | |
_ | _ | _ | _ | 14 | _ | _ | R62 | 419.10 | 11.13 | 16.66 | 1.5 | _ | 467.0 | _ | _ | |
_ | _ | _ | _ | _ | 14 | _ | R63 | 419.10 | 15.88 | 26.97 | 2.4 | _ | _ | 489.0 | _ | |
16 | _ | _ | _ | _ | _ | _ | R64 | 454.03 | 6.35 | 8.74 | 0.8 | 483.0 | _ | _ | _ | _ |
_ | 16 | 16 | 16 | _ | _ | _ | R65 | 469.90 | 7.92 | 11.19 | 0.8 | 508.0 | _ | _ | _ | |
_ | _ | _ | _ | 16 | _ | _ | R66 | 469.90 | 11.13 | 16.66 | 1.5 | _ | 524.0 | _ | _ | |
_ | _ | _ | _ | _ | 16 | _ | R67 | 469.90 | 17.48 | 30.18 | 2.4 | _ | _ | 546.0 | _ | |
18 | _ | _ | _ | _ | _ | _ | R68 | 517.53 | 6.35 | 8.74 | 0.8 | 546.0 | _ | _ | _ | _ |
_ | 18 | 18 | 18 | _ | _ | _ | R69 | 533.40 | 7.92 | 11.91 | 0.8 | 575.0 | _ | _ | _ | |
_ | _ | _ | _ | 18 | _ | _ | R70 | 533.40 | 12.70 | 19.84 | 1.5 | _ | 594.0 | _ | _ | |
_ | _ | _ | _ | _ | 18 | _ | R71 | 533.40 | 17.48 | 30.18 | 2.4 | _ | _ | 613.0 | _ | |
20 | _ | _ | _ | _ | _ | _ | R72 | 558.80 | 6.35 | 8.74 | 0.8 | 597.0 | _ | _ | _ | _ |
_ | 20 | 20 | 20 | _ | _ | _ | R73 | 584.20 | 9.53 | 13.49 | 1.5 | 635.0 | _ | _ | _ | |
_ | _ | _ | _ | 20 | _ | _ | R74 | 584.20 | 12.70 | 19.84 | 1.5 | _ | 648.0 | _ | _ | |
_ | _ | _ | _ | _ | 20 | _ | R75 | 584.20 | 17.48 | 33.32 | 2.4 | _ | _ | 673.0 | _ | |
24 | _ | _ | _ | _ | _ | _ | R76 | 673.10 | 6.35 | 8.74 | 0.8 | 711.0 | _ | _ | _ | _ |
_ | 24 | 24 | 24 | _ | _ | _ | R77 | 692.15 | 11.13 | 16.66 | 1.5 | 749.0 | _ | _ | _ | |
_ | _ | _ | _ | 24 | _ | _ | R78 | 692.15 | 15.88 | 26.97 | 2.4 | _ | 772.0 | _ | _ | |
_ | _ | _ | _ | _ | 24 | _ | R79 | 692.15 | 20.62 | 36.53 | 2.4 | _ | _ | 794.0 | _ | |
_ | 26 | 26 | 26 | _ | _ | _ | R93 | 749.30 | 12.70 | 19.84 | 1.5 | 810.0 | ||||
_ | 28 | 28 | 28 | _ | _ | _ | R94 | 800.10 | 12.70 | 19.84 | 1.5 | 861.0 | ||||
_ | 30 | 30 | 30 | _ | _ | _ | R95 | 857.25 | 12.70 | 19.84 | 1.5 | 917.0 | ||||
_ | 32 | 32 | 32 | _ | _ | _ | R96 | 914.40 | 14.27 | 23.01 | 1.5 | 984.0 | ||||
_ | 34 | 34 | 34 | _ | _ | _ | R97 | 965.20 | 14.27 | 23.01 | 1.5 | 1035.0 | ||||
_ | 36 | 36 | 36 | _ | _ | _ | R98 | 1022.35 | 14.27 | 23.01 | 1.5 | 1092.0 | ||||
_ | _ | _ | _ | 26 | _ | _ | R100 | 749.30 | 17.48 | 30.18 | 2.3 | 832.0 | ||||
_ | _ | _ | _ | 28 | _ | _ | R101 | 800.10 | 17.48 | 33.32 | 2.3 | 889.0 | ||||
_ | _ | _ | _ | 30 | _ | _ | R102 | 857.25 | 17.48 | 33.32 | 2.3 | 946.0 | ||||
_ | _ | _ | _ | 32 | _ | _ | R103 | 914.40 | 17.48 | 33.32 | 2.3 | 1003.0 | ||||
_ | _ | _ | _ | 34 | _ | _ | R104 | 965.20 | 20.62 | 36.53 | 2.3 | 1067.0 | ||||
_ | _ | _ | _ | 36 | _ | _ | R105 | 1022.35 | 20.62 | 36.53 | 2.3 | 1124.0 |