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| NPS | Outside diameter of flanges |
Mini. thick. of flanges |
Overall Length | Bolt Circle |
Number and Size of Holes |
Outside Daimeter of raised face |
|||
|---|---|---|---|---|---|---|---|---|---|
| Welding neck |
Slip-on & socket welding |
Lap Joint |
|||||||
| O | Q | Y | Diam. | No. | dia. | R | |||
| 1/2 | 12.1 | 22.3 | 60.3 | 31.8 | 31.8 | 82.5 | 4 | 22 | 35 |
| 3/4 | 130 | 25.4 | 69.8 | 34.9 | 34.9 | 89.0 | 4 | 22 | 43 |
| 1 | 149 | 28.6 | 73.0 | 41.3 | 41.3 | 101.5 | 4 | 25 | 51 |
| 1-1/4 | 159 | 28.6 | 73.0 | 41.3 | 41.3 | 111.0 | 4 | 25 | 64 |
| 1-1/2 | 178 | 31.8 | 82.6 | 44.4 | 44.4 | 124.0 | 4 | 29 | 73 |
| 2 | 216 | 38.1 | 101.6 | 57.2 | 57.2 | 165.0 | 8 | 25 | 92 |
| 2-1/2 | 244 | 41.3 | 104.8 | 63.5 | 63.5 | 190.5 | 8 | 29 | 105 |
| 3 | 267 | 47.7 | 117.5 | 73.0 | 73.0 | 203.0 | 8 | 32 | 127 |
| 3-1/2 | |||||||||
| 4 | 311 | 54.0 | 123.8 | 90.5 | 90.5 | 241.5 | 8 | 35 | 157 |
| 5 | 375 | 73.1 | 155.5 | 104.8 | 104.8 | 292.0 | 8 | 41 | 186 |
| 6 | 394 | 82.6 | 171.4 | 119.1 | 119.1 | 317.5 | 12 | 38 | 216 |
| 8 | 483 | 92.1 | 212.7 | 142.9 | 142.9 | 393.5 | 12 | 45 | 270 |
| 10 | 584 | 108.0 | 254.0 | 158.8 | 177.8 | 482.5 | 12 | 51 | 324 |
| 12 | 673 | 123.9 | 282.9 | 181.0 | 219.1 | 571.5 | 16 | 54 | 381 |
| 14 | 749 | 133.4 | 298.4 | ----- | 241.3 | 635.0 | 16 | 60 | 413 |
| 16 | 826 | 146.1 | 311.2 | ----- | 260.4 | 705.0 | 16 | 51 | 470 |
| 18 | 914 | 162.0 | 327.0 | ------ | 276.2 | 474.5 | 16 | 73 | 538 |
| 20 | 984 | 117.8 | 355.4 | ----- | 292.1 | 832.0 | 16 | 80 | 584 |
| 24 | 1168 | 203.2 | 406.4 | ----- | 330.2 | 990.5 | 16 | 92 | 692 |
| CLASS | Nominal Pipe Size | Slip On | Threaded | Socket Weld | Lap Joint | Blind | Weld Neck |
| 2500# | ½ | 1 | 1 | 2 | 1 | 2 | 2 |
| ¾ | 2 | 2 | 2 | 2 | 2 | 2 | |
| 1 | 2 | 2 | 2 | 2 | 2 | 3 | |
| 1¼ | 3 | 3 | 3 | 3 | 3 | 3 | |
| 1½ | 3 | 3 | 3 | 3 | 4 | 4 | |
| 2 | 5 | 5 | 5 | 5 | 5 | 6 | |
| 2½ | 8 | 8 | 8 | 8 | 7 | 10 | |
| 3 | 9 | 9 | 9 | 9 | 9 | 11.5 | |
| 3½ | 11 | 12 | 11 | 11 | 13 | 12 | |
| 4 | 13 | 13 | 13 | 13 | 17 | 16.5 | |
| 5 | 15 | 15 | 15 | 15 | 20 | 21 | |
| 6 | 19 | 19 | 19 | 19 | 27 | 26 | |
| 8 | 30 | 30 | 30 | 30 | 47 | 42 | |
| 10 | 43 | 43 | 43 | 43 | 70 | 54 | |
| 12 | 64 | 64 | 64 | 64 | 123 | 88 | |
| 14 | 90 | 90 | 90 | 105 | 140 | 114 | |
| 16 | 106 | 98 | 98 | 140 | 180 | 140 | |
| 18 | 130 | 130 | 130 | 160 | 220 | 165 | |
| 20 | 165 | 165 | 165 | 195 | 285 | 197 | |
| 22 | 185 | 185 | 185 | 245 | 355 | 225 | |
| 24 | 220 | 220 | 220 | 275 | 430 | 268 |
| Specification : | ASME B16.5 Class 2500 Flange |
| Machining Equipment: | Press machine, Pushing Machine, Electric bevelling machine, Bending machine, Sand-blasting machine etc |
| Standards : | BS10 Flange, ASME B16.38 Flange, UNI Flange, PN Flange, ISO Flange, JIS Flange, MSS SP44 Flange, EN-1092 Flange, ASME B16.47 (Series A, Series B) Flange, ASME B16.5 Flange, AWWA Flange, DIN Flange, GOST Flange |
| Pressure Rating Table: | Class 150 LBS, Class 300 LBS, Class 600 LBS, Class 900 LBS, Class 1500 LBS, Class 2500 LBS |
| Production Process: | Forged, Heat Treated and Machined |
| Supporting Flanges Material: | Gasket, Ring Joint, Flanges Bolts |
| Application: | Oil And Gas Industry Natural Gas Industry Water Pipeline Industry Fabrication Industry Nuclear Power Plant Chemical Industry |
| Connect Type Type: | RTJ, SMF, LJF, LMF, RF, FF |
| Design For Size: | ASA, PN, JIS, ANSI, ASME, EN, DIN, BS |
| Coating Flanges Faces : | Anti-rust Paint, Zinc Plated, Oil Black Paint, Yellow Transparent, Cold and Hot Dip Galvanized |
| Common Types of 2500# Flanges : | Class 2500 RTJ Flanges 2500 LB WNRF Class 2500 SORF 2500# BLRF |
| Size Chart : | 1/2″ (15 NB) To 48″ (1200NB) |
class 2500 Expander Flange
ANSI B16.5 Class 2500 Socket-weld Flange
2500# High hub Blind Flange
Welding Neck Flanges ANSI B16.5 2500 Lbs
Class 2500 Plate Flange
ANSI 2500 Square Flange
Class 2500 Puddle Flanges
ANSI 2500 Flanges Adapter
2500# Rf Threaded Flange
ANSI B16.5 Class 2500 Lap Joint Flange
Class 2500 Long Weld Neck Flange
ANSI/ASME B16.5 Class 2500 Forged Flange
| Temperature (in F°) | Class 2500# |
|---|---|
| < 100 | 6170 |
| 200 | 5655 |
| 300 | 5450 |
| 400 | 5280 |
| 500 | 5025 |
| 600 | 4730 |
| 650 | 4575 |
| 700 | 4425 |
| 750 | 4230 |
| 800 | 3430 |
| 850 | 2655 |
| 900 | 1915 |
| 950 | 1145 |
| 1000 | 715 |
| Hydrostatic Test Pressure (psig) | 9275 |
Class 2500 Flanges |
||||
# Bolts or Studs |
Dia of Bolts or Studs |
Length of Stud |
||
RTJ |
1/4 RF |
RTJ |
||
4-1/4 |
4 |
0.75 |
4-3/4 |
4-3/4 |
4-1/2 |
4 |
0.75 |
5 |
5 |
5 |
4 |
0.88 |
5-1/2 |
5-1/2 |
5 |
4 |
1.00 |
6 |
6 |
5-1/2 |
4 |
1.13 |
6-3/4 |
6-3/4 |
5-3/4 |
8 |
1.00 |
7 |
7 |
6-1/4 |
8 |
1.13 |
7-3/4 |
8 |
7 |
8 |
1.25 |
8-3/4 |
9 |
7-3/4 |
8 |
1.50 |
10 |
10-1/4 |
9-3/4 |
8 |
1.75 |
11-3/4 |
12-1/4 |
10-1/2 |
8 |
2.00 |
13-1/2 |
14 |
12-3/4 |
12 |
2.00 |
15 |
15-1/2 |
13-1/2 |
12 |
2.50 |
19-1/4 |
20 |
15-1/4 |
12 |
2.75 |
21-1/4 |
22 |
16-3/4 |
- |
- |
- |
- |
18-1/2 |
- |
- |
- |
- |
20-3/4 |
- |
- |
- |
- |
22-1/4 |
- |
- |
- |
- |
25-1/2 |
- |
- |
- |
- |
| NPS NPS (inch) |
ASME B16.5 2500# Flanges | ||||
|---|---|---|---|---|---|
| Diammeter of Flange (inch) |
No. of Bolts |
Diammeter of Bolts (inch) |
Diammeter of Bolt Holes (inch) |
Bolt Circle (inch) |
|
| 1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
| 1/2 | 3-1/2 | 4 | 1/2 | 0.62 | 2-3/8 |
| 3/4 | 3-7/8 | 4 | 1/2 | 0.62 | 2-3/4 |
| 1 | 4-1/4 | 4 | 1/2 | 0.62 | 3-1/8 |
| 1-1/4 | 4-5/8 | 4 | 1/2 | 0.62 | 3-1/2 |
| 1-1/2 | 5 | 4 | 1/2 | 0.62 | 3-7/8 |
| 2 | 6 | 4 | 5/8 | 0.75 | 4-3/4 |
| 2-1/2 | 7 | 4 | 5/8 | 0.75 | 5-1/2 |
| 3 | 7-1/2 | 4 | 5/8 | 0.75 | 6 |
| 3-1/2 | 8-1/2 | 8 | 5/8 | 0.75 | 7 |
| 4 | 9 | 8 | 5/8 | 0.75 | 7-1/2 |
| 5 | 10 | 8 | 3/4 | 0.88 | 8-1/2 |
| 6 | 11 | 8 | 3/4 | 0.88 | 9-1/2 |
| 8 | 13-1/2 | 8 | 3/4 | 0.88 | 11-3/4 |
| 10 | 16 | 12 | 7/8 | 1 | 14-1/4 |
| 12 | 19 | 12 | 7/8 | 1 | 17 |
| 14 | 21 | 12 | 1 | 1.12 | 18-3/4 |
| 16 | 23-1/2 | 16 | 1 | 1.12 | 21-1/4 |
| 18 | 25 | 16 | 1-1/8 | 1.25 | 22-3/4 |
| 20 | 27-1/2 | 20 | 1-1/8 | 1.25 | 25 |
| 24 | 32 | 20 | 1-1/4 | 1.38 | 29-1/2 |