ANSI/ ASME B16.5 class 150 threaded flange
ANSI/ASME B16.5 standard covers pressure,temperature,ratings,materials,dimensions,tolerances,marking, testing,and methods of designating openings for pipe flanges and flanged fittings.Threaded flange dimensions are covered in ANSI/ASME B16.5 class 150 for size NPS ½” to 24″.Threaded flange means the inner bore of a flange is thread,the shape of the threaded flange is like a slip on flange,so the threaded flange could be plate shape or with a hub for longer thread.
Dimensions of ANSI/ASME B16.5 class 150 threaded flange:
ANSI ASME B16.5 class 150 threaded flange dimensions
| Pipe | Flange Data | Hub | Raised Face | Drilling Data | Weight | ||||||
| Nominal Pipe Size | A | C | D | E | F | G | H | I | J | ||
| Outside Diameter | Overall Diameter | Flange Thickness min | Overall Length | Threaded length min | Hub Diameter | Face Diameter | Number of Holes | Bolt Hole Diameter | Diameter of Circle of Holes | kg/piece | |
| in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
|||
| ½ | 0.840 21.30 | 3.500 88.90 | 0.440 11.20 | 0.620 15.70 | 0.620 15.70 | 1.190 30.20 | 1.380 35.10 | 4 | 0.620 15.70 | 2.380 60.45 | 0.39 |
| ¾ | 1.050 26.70 | 3.880 98.60 | 0.500 12.70 | 0.620 15.70 | 0.620 15.70 | 1.500 38.10 | 1.690 42.90 | 4 | 0.620 15.70 | 2.750 69.85 | 0.56 |
| 1 | 1.315 33.40 | 4.250 108.0 | 0.560 14.20 | 0.690 17.50 | 0.690 17.50 | 1.940 49.30 | 2.000 50.80 | 4 | 0.620 15.70 | 3.120 79.25 | 0.78 |
| 1¼ | 1.660 42.20 | 4.620 117.3 | 0.620 15.70 | 0.810 20.60 | 0.810 20.60 | 2.310 58.70 | 2.500 63.50 | 4 | 0.620 15.70 | 3.500 88.90 | 1.03 |
| 1½ | 1.900 48.30 | 5.000 127.0 | 0.690 17.50 | 0.880 22.40 | 0.880 22.30 | 2.560 65.00 | 2.880 73.15 | 4 | 0.620 15.70 | 3.880 98.60 | 1.32 |
| 2 | 2.375 60.30 | 6.000 152.4 | 0.750 19.10 | 1.000 25.40 | 1.000 25.40 | 3.060 77.70 | 3.620 91.90 | 4 | 0.750 19.10 | 4.750 120.7 | 2.06 |
| 2½ | 2.875 73.00 | 7.000 177.8 | 0.880 22.40 | 1.120 28.40 | 1.120 28.40 | 3.560 90.40 | 4.120 104.6 | 4 | 0.750 19.10 | 5.500 139.7 | 3.28 |
| 3 | 3.500 88.90 | 7.500 190.5 | 0.940 23.90 | 1.190 30.20 | 1.190 30.20 | 4.250 108.0 | 5.000 127.0 | 4 | 0.750 19.10 | 6.000 152.4 | 3.85 |
| 3½ | 4.000 101.6 | 8.500 215.9 | 0.940 23.90 | 1.250 31.75 | 1.250 31.75 | 4.810 122.2 | 5.500 139.7 | 8 | 0.750 19.10 | 7.000 177.8 | 4.81 |
| 4 | 4.500 114.3 | 9.000 228.6 | 0.940 23.90 | 1.310 33.30 | 1.310 33.30 | 5.310 134.9 | 6.190 157.2 | 8 | 0.750 19.10 | 7.500 190.5 | 5.30 |
| 5 | 5.563 141.3 | 10.00 254.0 | 0.940 23.90 | 1.440 36.60 | 1.440 36.60 | 6.440 163.6 | 7.310 185.7 | 8 | 0.880 22.40 | 8.500 215.9 | 6.07 |
| 6 | 6.625 168.3 | 11.00 279.4 | 1.000 25.40 | 1.560 39.60 | 1.560 39.60 | 7.560 192.0 | 8.500 215.9 | 8 | 0.880 22.40 | 9.500 241.3 | 7.45 |
| 8 | 8.625 219.1 | 13.50 342.9 | 1.120 28.40 | 1.750 44.50 | 1.750 44.50 | 9.690 246.1 | 10.62 269.7 | 8 | 0.880 22.40 | 11.75 298.5 | 12.1 |
| 10 | 10.75 273.0 | 16.00 406.4 | 1.190 30.20 | 1.940 49.30 | 1.940 49.30 | 12.00 304.8 | 12.75 323.9 | 12 | 1.000 25.40 | 14.25 362.0 | 16.5 |
| 12 | 12.75 323.8 | 19.00 482.6 | 1.250 31.75 | 2.190 55.60 | 2.190 55.60 | 14.38 365.3 | 15.00 381.0 | 12 | 1.000 25.40 | 17.00 431.8 | 26.2 |
| 14 | 14.00 355.6 | 21.00 533.4 | 1.380 35.10 | 2.250 57.15 | 2.250 57.15 | 15.75 400.1 | 16.25 412.7 | 12 | 1.120 28.40 | 18.75 476.3 | 34.6 |
| 16 | 16.00 406.4 | 23.50 596.9 | 1.440 36.60 | 2.500 63.50 | 2.500 63.50 | 18.00 457.2 | 18.50 469.9 | 16 | 1.120 28.40 | 21.25 539.8 | 44.8 |
| 18 | 18.00 457.2 | 25.00 635.0 | 1.560 39.60 | 2.690 68.30 | 2.690 68.30 | 19.88 505.0 | 21.00 533.4 | 16 | 1.250 31.75 | 22.75 577.9 | 48.9 |
| 20 | 20.00 508.0 | 27.50 698.5 | 1.690 42.90 | 2.880 73.15 | 2.880 73.15 | 22.00 558.8 | 23.00 584.2 | 20 | 1.250 31.75 | 25.00 635.0 | 61.9 |
| 24 | 24.00 609.6 | 32.00 812.8 | 1.880 47.80 | 3.250 82.60 | 3.250 82.60 | 26.12 663.4 | 27.25 692.2 | 20 | 1.380 35.10 | 29.50 749.3 | 86.9 |
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 recount threads.)
- Class 150 threaded flanges are made without a counterbore. Threads are chamfered to the major diameter (approx.) at an angle of 45° (approx.) at the back of the flange.
- Weights are based on manufacturer’s data and are approximate.
Specifications of ANSI/ASME B16.5 flange:
Types of ANSI/ASME B16.5 forged flanges:
|
ANSI ASME B16.5 weld neck flange drawing |
Weld neck flange(WN flange) is circumferentially welded into the system at its neck which means that the integrity of the butt welded area can be easily examined by radiography.The bores of both pipe and flange match,which reduces turbulence and erosion inside the pipeline.The weld neck is therefore favoured in critical applications. |
|
ANSI ASME B16.5 blind flange drawing |
Blind flange is used to blank off pipelines,valves and pumps,it can also be used as an inspection cover.It is sometimes referred to as a blank flange. |
|
ANSI ASME B16.5 slip on flange drawing |
Slip on flange(SO flange) is slipped over the pipe and then fillet welded.Slip-on flanges are easy to use in fabricated applications. |
|
ANSI ASME B16.5 lap joint flange drawing |
Lap joint flange(LJ flange) is always used with either a stub end or taft which is butt welded to the pipe with the flange loose behind it.This means the stub end or taft always makes the face.The lap joint is favoured in low pressure applications because it is easily assembled and aligned.To reduce cost these flanges can be supplied without a hub and/or in treated,coated carbon steel. |
|
ANSI ASME B16.5 socket weld flange drawing |
Socket weld flange(SW flange) is counter bored to accept the pipe before being fillet welded.The bore of the pipe and flange are both the same therefore giving good flow characteristics. |
|
ANSI ASME B16.5 threaded flange drawing |
Threaded flange is referred to as either threaded or screwed.It is used to connect other threaded components in low pressure,non-critical applications.No welding is required. |
|
ANSI ASME B16.5 ring type joint flange drawing |
Ring type joint 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 flanges,slip on flange and blind flanges. |
ANSI ASME B16.5 class 150 threaded flange
Materials of ANSI/ASME B16.5 class 150 threaded flange:
Carbon steel ANSI/ASME B16.5 threaded flange:
ASTM A105,A350 LF2,SS400,P235GH,P250GH,C22.8,Q235,20#,16Mn,etc.
Stainless steel ANSI/ASME B16.5 threaded flange:
ASTM A182 F304,F304L,F316,F316L,F321,F347,F310,F44,F51,etc.
Alloy steel ANSI/ASME B16.5 threaded flange:
ASTM A694 F42,F46,F52,F56,F60,F65,F70,A182 F5,F9,F91,F12,F11,F22,etc.
Related:
- ANSI/ASME B16.5 class 150 threaded flange
- ANSI/ASME B16.5 class 300 threaded flange
- ANSI/ASME B16.5 class 400 threaded flange
- ANSI/ASME B16.5 class 600 threaded flange
- ANSI/ASME B16.5 class 900 threaded flange
- ANSI/ASME B16.5 class 1500 threaded flange
- ANSI/ASME B16.5 class 2500 threaded flange
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