A pipe flange is a device, which connects different pipes, valves, fittings, and other components in a piping system. These flanges act as a support system as there is a vigorous movement of fluids or gases across the system. These protruding ridges securely connect pipelines and prevent any leakage within the systems. The mounting procedures of these components are simple and allow for easy dismantling procedures. They can also be welded in place however, this will not allow them to be inspected or cleaned if the need arises. There are several flange standards, which are used in the piping industry to meet different requirements.
Slip-on flanges are one of the most popular and common flange components used within the piping industry. These flanges are designed with a low profile head or hub, which is attached to the line making use of one or more fillet welds. The size of the bore is larger than the connecting area. They are mainly used in low-pressure systems where the risk of leakage is low. These components are also utilized in applications where the space for installing the fitting is less. The cost of fitting these components is very low making, them highly desirable. Apart from this, they are available in an array of shapes and sizes, which allow them to be fitted in different applications.
International Organization for Standardization (ISO) is a federation of worldwide national standards of flanges. The international standards lay down the basic dimensions, surface finish, material, facing type, and other technical information about flanges. The flange standards in Europe are governed by the European EN 1092 series. According to the series, steel flanges have nominal diameter and pressure between PN 2.5 to PN 400. Another European flange standard is the EN 1759, which only consists of ASME and ANSI flanges. The American flanges are standardized, comprising of ASME flanges and DIN flanges (PN 2.5, 6, 10, 16, 25, and 40). It also specifies the PN and DN designations for ASME flanges (PN 20, 50,110, 150, 250, and 420).
Table of Content
Flange Size Range | Flange Type | Flange Pressure Class | Flange Specification (Latest edition) |
---|---|---|---|
26“ to 60" 1/2“ to 12" 26“ to 48" | Orifice Flanges ( Slip-on, Weld neck, Threaded) | 400, 600LBS 75 to 300LBS 900LBS | ASME/ANSI B16.47 |
26“ to 48" 26“ to 60" | Weld Neck, Blind, Socket Weld, Slip-on, Lap Joint and Threaded Flanges | 150 to 2500LBS 150 to 1500LBS | ASME/ANSI B16.5 |
1" to 12" | Orifice Flanges ( Slip-on, Weld neck, Threaded) | 300 To 2500LBS | ASME/ANSI B16.36 |
15mm to 600mm | Slip-on, Blind, and Welding neck flanges | TABLE-J, D, H, T, R, K, F, E, A, S, | BS 10 |
10mm to 1000mm 10mm to 1800mm 10mm to 300mm 10mm to 400mm 10mm to 600mm 10mm to 350mm 10mm to 200mm 10mm to 250mm | 12 (Hubbed slip-on flange), 02 (Loose plate flange for Types 32—37), 01 (Plate flange), 11 (Weld-neck flange), 04 (Loose plate flange for Type 34),05 (Blind flange), 13 (Hubbed | PN2.5 to PN16 PN100 PN40 PN25 PN63 PN250 PN400 PN160 PN320 | EN 1092-1 /DIN / BS 4504 Flanges |
½” to 24” | Stub end -Type: B, A, C (Short pattern) | S40, S10, S80 | MSS SP-43/ ASME/ANSI B16.9 |
Blind Flange
Slip On Flange
WNRF Flange
Ring Joint Flange
Lap Joint Flange
Socket Weld Flange
Threaded Flange
Forged Pipe Flange
Nickel Alloy Flange | Duplex/Super Duplex Flange | |
Other Flange |
A weld neck flange is characterized by its long protruding hub. The hub acts as a strong support system and distributes the weight evenly to the piping components during the vigorous flow of fluids. This is the major reason why they are a preferred choice in high-pressure and elevated temperature systems. These flanges are the strongest flanges in the industry and are widely seen in hostile environments. They are directly welded onto the pipe and help in reducing the turbulence within the system in stress-induced environments. A WNF covers pressure classes of 150, 300, 400, 600, 900, 1500, and 2500.
DN (inch) | Flange Dimension | Dimensional Sizes 3 to 10 inches ANSI B16.5 Flange Table Chart | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
125 lbs 150 lbs | 300 lbs | 400 lbs | 600 lbs | 900 lbs | 1500 lbs | 2500 lbs | ||||||||||
inch | milimeter | inch | milimeter | inch | milimeter | inch | milimeter | inch | milimeter | inch | milimeter | inch | milimeter | |||
3 | A | 7 1/2 | 190.05 | 81/4 | 209.06 | 81/4 | 209.06 | 8 1/4 | 209.06 | 9 1/2 | 241 | 10 1/2 | 267 | 12 | 305 | |
b | 15/16 | 23.08 | 1 1/8 | 28.06 | 11/4 | 31.08 | 1 1/4 | 31.08 | 1 1/2 | 38.01 | 1 7/8 | 47.06 | 2 5/8 | 66.07 | ||
D2 | 5 | 127 | 5 | 127 | 5 | 127 | 5 | 127 | 5 | 127 | 5 | 127 | 5 | 127 | ||
D1 | 6 | 152.04 | 6 5/8 | 168.03 | 6 5/8 | 168.03 | 6 5/8 | 168.03 | 71/2 | 190.05 | 8 | 203 | 9 | 228.06 | ||
n | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
d | 3/4 | 19 | 7/8 | 22.02 | 7/8 | 22.02 | 7/8 | 22.02 | 1 | 25.04 | 1 1/4 | 31.08 | 1 3/8 | 34.09 | ||
3 1/2 | A | 8 1/2 | 215.09 | 9 | 228.06 | 9 | 228.06 | 9 | 228.06 | - | - | - | - | - | - | |
b | 15/16 | 23.08 | 13/16 | 30.02 | 13/8 | 34.09 | 13/8 | 34.09 | - | - | - | - | - | - | ||
D2 | 5 1/2 | 139.07 | 5 /2 | 139.07 | 5 1/2 | 139.07 | 5 1/2 | 139.07 | - | - | - | - | - | - | ||
D1 | 7 | 177.08 | 7 1/4 | 184.02 | 7 1/4 | 184.02 | 7 1/4 | 184.02 | - | - | - | - | - | - | ||
n | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | - | - | - | - | - | - | ||
d | 3/4 | 19 | 7/8 | 22.02 | 1 | 25.04 | 1 | 25.04 | - | - | - | - | - | - | ||
4 | A | 9 | 228.06 | 10 | 254 | 10 | 254 | 10 3/4 | 273 | 11 1/2 | 292 | 12 1/4 | 311 | 14 | 356 | |
b | 15/16 | 23.08 | 1 1/4 | 31.07 | 1 3/8 | 34.09 | 1 1/2 | 38.01 | 1 3/4 | 44.04 | 2 1/8 | 54 | 3 | 76.02 | ||
D2 | 6 3/16 | 157.02 | 6 3/16 | 157.02 | 6 3/16 | 157.02 | 6 3/16 | 157.02 | 6 3/16 | 157.02 | 6 3/16 | 157.02 | 6 3/16 | 157.02 | ||
D1 | 7 1/2 | 190 | 7 7/8 | 200 | 7 7/8 | 200 | 8 1/2 | 215.09 | 9 1/4 | 235 | 9 1/2 | 241 | 10 3/4 | 273 | ||
n | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
d | 3/4 | 19 | 7/8 | 22.02 | 1 | 25.04 | 1 | 25.04 | 1 1/4 | 31.08 | 1 3/8 | 34.09 | 1 5/8 | 41.03 | ||
5 | A | 10 | 254 | 11 | 279.04 | 11 | 279.04 | 13 | 330.02 | 13 3/4 | 349 | 14 3/4 | 375 | 16 1/2 | 419 | |
b | 1 5/16 | 23.08 | 13/8 | 34.09 | 1 1/2 | 38.01 | 1 3/4 | 44.04 | 2 | 50.08 | 2 7/8 | 73 | 3 5/8 | 92.01 | ||
D2 | 7 5/16 | 185.07 | 7 5/16 | 185.07 | 7 5/16 | 185.07 | 7 5/16 | 185.07 | 7 5/16 | 185.07 | 7 5/16 | 185.07 | 7 5/16 | 185.07 | ||
D1 | 8 1/2 | 215.09 | 9 1/4 | 234.09 | 9 1/4 | 234.09 | 10 1/2 | 266.07 | 11 | 279 | 11 1/2 | 292 | 12 3/4 | 324 | ||
n | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
d | 7/8 | 22.02 | 7/8 | 22.02 | 1 | 25.04 | 1 1/8 | 28.06 | 1 3/8 | 34.09 | 1 5/8 | 41.03 | 1 7/8 | 47.06 | ||
6 | A | 11 | 279 | 12 1/2 | 317.05 | 12 1/2 | 317.05 | 14 | 355.06 | 15 | 381 | 15 1/2 | 394 | 19 | 483 | |
b | 1 | 25.04 | 17/16 | 36.05 | 1 5/8 | 41.03 | 1 7/8 | 47.06 | 2 3/16 | 55.06 | 3 1/4 | 82.06 | 4 1/4 | 108 | ||
D2 | 8 1/2 | 216 | 8 1/2 | 215.09 | 8 1/2 | 215.09 | 8 1/2 | 215.09 | 8 1/2 | 215.09 | 8 1/2 | 215.09 | 8 1/2 | 216 | ||
D1 | 9 1/2 | 241 | 10 5/8 | 269.09 | 10 5/8 | 269.09 | 11 1/2 | 292.01 | 12 1/2 | 318 | 12 1/2 | 318 | 14 1/2 | 368 | ||
n | 8 | 8 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 8 | 8 | ||
d | 7/8 | 22.02 | 7/8 | 22.02 | 1 | 25.04 | 1 1/8 | 28.06 | 1 1/4 | 31.08 | 1 1/2 | 38.01 | 2 1/8 | 54 | ||
8 | A | 13 1/2 | 342.09 | 15 | 381 | 15 | 381 | 16 1/2 | 419 | 18 1/2 | 470 | 19 | 482.06 | 21 3/4 | 552 | |
b | 1 1/8 | 28.06 | 1 5/8 | 41.03 | 1 7/8 | 47.06 | 2 3/16 | 55.06 | 2 1/2 | 63.05 | 3 5/8 | 92.01 | 5 | 127 | ||
D2 | 10 5/8 | 269.09 | 10 5/8 | 269.09 | 10 5/8 | 269.09 | 10 5/8 | 269.09 | 10 5/8 | 269.09 | 10 5/8 | 269.09 | 10 5/8 | 269.09 | ||
D1 | 11 3/4 | 298.04 | 13 | 330.02 | 13 | 330.02 | 13 3/4 | 349.02 | 15 1/2 | 394.02 | 15 1/2 | 394.02 | 17 1/4 | 438 | ||
n | 8 | 8 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | ||
d | 7/8 | 22.02 | 1 | 25.04 | 1 1/8 | 28.06 | 1 1/4 | 31.08 | 1 1/2 | 38.01 | 1 3/4 | 44.05 | 2 1/8 | 54 | ||
10 | A | 16 | 406.04 | 17 1/2 | 444.05 | 17 1/2 | 444.05 | 20 | 508 | 21 1/2 | 546 | 23 | 584 | 26 1/2 | 673 | |
b | 1 3/16 | 30.02 | 1 7/8 | 47.06 | 2 1/8 | 54 | 2 1/2 | 63.05 | 2 3/4 | 69.08 | 4 1/4 | 108 | 6 1/2 | 165 | ||
D2 | 12 3/4 | 323.08 | 12 3/4 | 323.08 | 12 3/4 | 323.08 | 12 3/4 | 323.08 | 12 3/4 | 323.08 | 12 3/4 | 323.08 | 12 3/4 | 323.08 | ||
D1 | 14 1/4 | 361.09 | 15 1/4 | 387.04 | 15 1/4 | 387.04 | 17 | 431.08 | 18 1/2 | 470 | 19 | 482.06 | 21 1/4 | 540 | ||
n | 12 | 12 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 12 | 12 | 12 | 12 | ||
d | 1 | 25.04 | 1 1/8 | 28.06 | 1 1/4 | 31.08 | 1 3/8 | 34.09 | 1 1/2 | 38.01 | 2 | 50.08 | 2 5/8 | 66.07 |
Nominal Flange Size | Min.Thickness (T) | Outside Diameter (OD) | No. of Bolt Holes | WN LTH (WL) | RF Dia. (R) | Diameter of Holes | SO Bore ID (SB) | Bolt Circle (BC) | Dia. Hub Base (HB) | WN Bore ID (WB) | Dia. of Hub Top (HT) | SO LTH (SL) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1⁄2 | 0.038 | 3.050 | 4 | 1.081 | 1.038 | 0.062 | 0.088 | 2.038 | 1.019 | 0.062 | 0.084 | 0.056 |
3⁄4 | 0.044 | 3.088 | 4 | 2.000 | 1.069 | 0.062 | 1.009 | 2.075 | 1.050 | 0.082 | 1.005 | 0.056 |
1 | 0.050 | 4.025 | 4 | 2.012 | 2.000 | 0.062 | 1.036 | 3.012 | 1.094 | 1.005 | 1.032 | 0.062 |
11⁄4 | 0.056 | 4.062 | 4 | 2.019 | 2.050 | 0.062 | 1.070 | 3.050 | 2.031 | 1.038 | 1.066 | 0.075 |
11⁄2 | 0.062 | 5.000 | 4 | 2.038 | 2.088 | 0.062 | 1.095 | 3.088 | 2.056 | 1.061 | 1.090 | 0.081 |
2 | 0.069 | 6.000 | 4 | 2.044 | 3.062 | 0.075 | 2.044 | 4.075 | 3.006 | 2.007 | 2.038 | 0.094 |
21⁄2 | 0.081 | 7.000 | 4 | 2.069 | 4.012 | 0.075 | 2.094 | 5.050 | 3.056 | 2.047 | 2.088 | 1.006 |
3 | 0.088 | 7.050 | 4 | 2.069 | 5.000 | 0.075 | 3.057 | 6.000 | 4.025 | 3.007 | 3.050 | 1.012 |
31⁄2 | 0.088 | 8.050 | 8 | 2.075 | 5.050 | 0.075 | 4.007 | 7.000 | 4.081 | 3.055 | 4.000 | 1.019 |
4 | 0.088 | 9.000 | 8 | 2.094 | 6.019 | 0.075 | 4.057 | 7.050 | 5.031 | 4.003 | 4.050 | 1.025 |
5 | 0.088 | 10.000 | 8 | 3.044 | 7.031 | 0.088 | 5.066 | 8.050 | 6.044 | 5.005 | 5.056 | 1.038 |
6 | 0.094 | 11.000 | 8 | 3.044 | 8.050 | 0.088 | 6.072 | 9.050 | 7.056 | 6.007 | 6.063 | 1.050 |
8 | 1.006 | 13.050 | 8 | 3.094 | 10.062 | 0.088 | 8.072 | 11.075 | 9.069 | 7.098 | 8.063 | 1.069 |
10 | 1.012 | 16.000 | 12 | 3.094 | 12.075 | 1.000 | 10.088 | 14.025 | 12.000 | 10.002 | 10.075 | 1.088 |
12 | 1.019 | 19.000 | 12 | 4.044 | 15.000 | 1.000 | 12.088 | 17.000 | 14.038 | 12.000 | 12.075 | 2.012 |
14 | 1.031 | 21.000 | 12 | 4.094 | 16.025 | 1.012 | 14.014 | 18.075 | 15.075 | 13.025 | 14.000 | 2.019 |
16 | 1.038 | 23.050 | 16 | 4.094 | 18.050 | 1.012 | 16.016 | 21.025 | 18.000 | 15.025 | 16.000 | 2.044 |
18 | 1.050 | 25.000 | 16 | 5.044 | 21.000 | 1.025 | 18.018 | 22.075 | 19.088 | 17.025 | 18.000 | 2.062 |
20 | 1.062 | 27.050 | 20 | 5.062 | 23.000 | 1.025 | 20.020 | 25.000 | 22.000 | 19.025 | 20.000 | 2.081 |
22 | 1.075 | 29.050 | 20 | 5.082 | 25.025 | 1.038 | 22.022 | 27.025 | 24.025 | 21.025 | 22.000 | 3.007 |
24 | 1.081 | 32.000 | 20 | 5.094 | 27.025 | 1.038 | 24.025 | 29.050 | 26.012 | 23.025 | 24.000 | 3.019 |
Nominal Flange Size | Outside Diameter (OD) | Min.Thickness (T) | No. of Bolt Holes | WN LTH (WL) | Bolt Circle (BC) | RF Dia. (R) | Diameter of Holes | SO Bore ID (SB) | WN Bore ID (WB) | Dia. Hub Base (HB) | Dia. Hub Top (HT) | SO LTH (SL) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1⁄2 | 3.075 | 0.050 | 4 | 2.000 | 2.062 | 1.038 | 0.063 | 0.088 | 0.062 | 1.050 | 0.084 | 0.081 |
3⁄4 | 4.062 | 0.056 | 4 | 2.019 | 3.025 | 1.069 | 0.075 | 1.009 | 0.082 | 1.088 | 1.005 | 0.094 |
1 | 4.088 | 0.062 | 4 | 2.038 | 3.050 | 2.000 | 0.075 | 1.036 | 1.005 | 2.012 | 1.032 | 1.000 |
11⁄4 | 5.025 | 0.069 | 4 | 2.050 | 3.088 | 2.050 | 0.075 | 1.070 | 1.038 | 2.050 | 1.066 | 1.000 |
11⁄2 | 6.012 | 0.075 | 4 | 2.063 | 4.050 | 2.088 | 0.088 | 1.095 | 1.061 | 2.075 | 1.090 | 1.013 |
2 | 6.050 | 0.081 | 8 | 2.069 | 5.000 | 3.062 | 0.075 | 2.044 | 2.007 | 3.031 | 2.038 | 1.025 |
21⁄2 | 7.050 | 0.094 | 8 | 2.094 | 5.088 | 4.012 | 0.088 | 2.094 | 2.047 | 3.094 | 2.088 | 1.044 |
3 | 8.025 | 1.006 | 8 | 3.006 | 6.062 | 5.000 | 0.088 | 3.057 | 3.007 | 4.062 | 3.050 | 1.063 |
31⁄2 | 9.000 | 1.012 | 8 | 3.013 | 7.025 | 5.050 | 0.088 | 4.007 | 3.055 | 5.025 | 4.000 | 1.069 |
4 | 10.000 | 1.019 | 8 | 3.032 | 7.088 | 6.019 | 0.088 | 4.057 | 4.003 | 5.075 | 4.050 | 1.082 |
5 | 11.000 | 1.031 | 8 | 3.082 | 9.025 | 7.031 | 0.088 | 5.066 | 5.005 | 7.000 | 5.056 | 1.094 |
6 | 12.050 | 1.038 | 12 | 3.082 | 10.062 | 8.050 | 0.088 | 6.072 | 6.007 | 8.012 | 6.063 | 2.000 |
8 | 15.000 | 1.056 | 12 | 4.032 | 13.000 | 10.062 | 1.000 | 8.072 | 7.098 | 10.025 | 8.063 | 2.038 |
10 | 17.050 | 1.081 | 16 | 4.056 | 15.025 | 12.075 | 1.012 | 10.088 | 10.002 | 12.062 | 10.075 | 2.056 |
12 | 20.050 | 1.094 | 16 | 5.006 | 17.075 | 15.000 | 1.025 | 12.088 | 12.000 | 14.075 | 12.075 | 2.082 |
14 | 23.000 | 2.006 | 20 | 5.056 | 20.025 | 16.025 | 1.025 | 14.014 | 13.025 | 16.075 | 14.000 | 2.094 |
16 | 25.050 | 2.019 | 20 | 5.069 | 22.050 | 18.050 | 1.038 | 16.016 | 15.025 | 19.000 | 16.000 | 3.019 |
18 | 28.000 | 2.031 | 24 | 6.019 | 24.075 | 21.000 | 1.038 | 18.018 | 17.025 | 21.000 | 18.000 | 3.044 |
20 | 30.050 | 2.044 | 24 | 6.032 | 27.000 | 23.012 | 1.038 | 20.020 | 19.025 | 23.012 | 20.000 | 3.069 |
22 | 33.000 | 2.057 | 24 | 6.043 | 29.025 | 25.025 | 1.063 | 22.022 | 21.025 | 25.025 | 22.000 | 3.093 |
24 | 36.000 | 2.069 | 24 | 6.056 | 32.000 | 27.062 | 1.063 | 24.025 | 23.025 | 27.062 | 24.000 | 4.013 |
Nominal Flange Size | * WN Bore ID (WB) | Min. Thickness (T) | Outside Diameter (OD) | RF Dia. (R) | Diameter of Holes | No. of Bolt Holes | SO Bore ID (SB) | Bolt Circle (BC) | Dia. Hub Base (HB) | SO LTH (SL) | Dia. Hub Top (HT) | WN LTH (WL) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1⁄2 | * | 0.56 | 3.75 | 1.38 | 0.63 | 4 | 0.88 | 2.62 | 1.5 | 0.88 | 0.84 | 2.06 |
3⁄4 | * | 0.62 | 4.62 | 1.69 | 0.75 | 4 | 1.09 | 3.25 | 1.88 | 1.00 | 1.05 | 2.25 |
1 | * | 0.69 | 4.88 | 2.00 | 0.75 | 4 | 1.36 | 3.50 | 2.12 | 1.06 | 1.32 | 2.44 |
11⁄4 | * | 0.81 | 5.25 | 2.50 | 0.75 | 4 | 1.70 | 3.88 | 2.50 | 1.12 | 1.66 | 2.62 |
11⁄2 | * | 0.88 | 6.12 | 2.88 | 0.88 | 4 | 1.95 | 4.50 | 2.75 | 1.25 | 1.90 | 2.75 |
2 | * | 1.00 | 6.50 | 3.62 | 0.75 | 8 | 2.44 | 5.00 | 3.31 | 1.44 | 2.38 | 2.88 |
21⁄2 | * | 1.12 | 7.50 | 4.12 | 0.88 | 8 | 2.94 | 5.88 | 3.94 | 1.62 | 2.88 | 3.12 |
3 | * | 1.25 | 8.25 | 5.00 | 0.88 | 8 | 3.57 | 6.62 | 4.62 | 1.81 | 3.50 | 3.25 |
31⁄2 | * | 1.38 | 9.00 | 5.50 | 1.00 | 8 | 4.07 | 7.25 | 5.25 | 1.94 | 4.00 | 3.38 |
4 | * | 1.38 | 10.00 | 6.19 | 1.00 | 8 | 4.57 | 7.88 | 5.75 | 2.00 | 4.50 | 3.50 |
5 | * | 1.50 | 11.00 | 7.31 | 1.00 | 8 | 5.66 | 9.25 | 7.00 | 2.12 | 5.56 | 4.00 |
6 | * | 1.62 | 12.50 | 8.50 | 1.00 | 12 | 6.72 | 10.62 | 8.12 | 2.25 | 6.63 | 4.06 |
8 | * | 1.88 | 15.00 | 10.62 | 1.12 | 12 | 8.72 | 13.00 | 10.25 | 2.69 | 8.63 | 4.62 |
10 | * | 2.12 | 17.50 | 12.75 | 1.25 | 16 | 10.88 | 15.25 | 12.62 | 2.88 | 10.75 | 4.88 |
12 | * | 2.25 | 20.50 | 15.00 | 1.38 | 16 | 12.88 | 17.75 | 14.75 | 3.12 | 12.75 | 5.38 |
14 | * | 2.38 | 23.00 | 16.25 | 1.38 | 20 | 14.14 | 20.25 | 16.75 | 3.31 | 14.00 | 5.88 |
16 | * | 2.50 | 25.50 | 18.50 | 1.50 | 20 | 16.16 | 22.50 | 19.00 | 3.69 | 16.00 | 6.00 |
18 | * | 2.62 | 28.00 | 21.00 | 1.50 | 24 | 18.18 | 24.75 | 21.00 | 3.88 | 18.00 | 6.50 |
20 | * | 2.75 | 30.50 | 23.12 | 1.62 | 24 | 20.20 | 27.00 | 23.12 | 4.00 | 20.00 | 6.62 |
22 | * | 2.88 | 33.00 | 25.25 | 1.75 | 24 | 22.22 | 29.25 | 25.25 | 4.25 | 22.00 | 6.75 |
24 | * | 3.00 | 36.00 | 27.25 | 1.88 | 24 | 24.25 | 32.00 | 27.62 | 4.50 | 24.00 | 6.88 |
Nominal Flange Size | * WN Bore ID (WB) | Min. Thickness (T) | Outside Diameter (OD) | No. of Bolt Holes | RF Dia. (R) | Diameter of Holes | SO Bore ID (SB) | Bolt Circle (BC) | Dia. Hub Base (HB) | SO LTH (SL) | Dia. Hub Top (HT) | WN LTH (WL) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1⁄2 | * | 0.056 | 3.075 | 4 | 1.038 | 0.063 | 0.088 | 2.062 | 1.050 | 0.088 | 0.084 | 2.006 |
3⁄4 | * | 0.062 | 4.062 | 4 | 1.069 | 0.075 | 1.009 | 3.025 | 1.088 | 1.000 | 1.005 | 2.025 |
1 | * | 0.069 | 4.088 | 4 | 2.000 | 0.075 | 1.036 | 3.050 | 2.012 | 1.006 | 1.032 | 2.044 |
11⁄4 | * | 0.081 | 5.025 | 4 | 2.050 | 0.075 | 1.070 | 3.088 | 2.050 | 1.012 | 1.066 | 2.062 |
11⁄2 | * | 0.088 | 6.012 | 4 | 2.088 | 0.088 | 1.095 | 4.050 | 2.075 | 1.025 | 1.090 | 2.075 |
2 | * | 1.000 | 6.050 | 8 | 3.062 | 0.075 | 2.044 | 5.000 | 3.031 | 1.044 | 2.038 | 2.088 |
21⁄2 | * | 1.012 | 7.050 | 8 | 4.012 | 0.088 | 2.094 | 5.088 | 3.094 | 1.062 | 2.088 | 3.012 |
3 | * | 1.025 | 8.025 | 8 | 5.000 | 0.088 | 3.057 | 6.062 | 4.062 | 1.081 | 3.050 | 3.025 |
31⁄2 | * | 1.038 | 9.000 | 8 | 5.050 | 1.000 | 4.007 | 7.025 | 5.025 | 1.094 | 4.000 | 3.038 |
4 | * | 1.050 | 10.075 | 8 | 6.019 | 1.000 | 4.057 | 8.050 | 6.000 | 2.012 | 4.050 | 4.000 |
5 | * | 1.075 | 13.000 | 8 | 7.031 | 1.012 | 5.066 | 10.050 | 7.044 | 2.038 | 5.056 | 4.050 |
6 | * | 1.088 | 14.000 | 12 | 8.050 | 1.012 | 6.072 | 11.050 | 8.075 | 2.062 | 6.063 | 4.062 |
8 | * | 2.019 | 16.050 | 12 | 10.062 | 1.025 | 8.072 | 13.075 | 10.075 | 3.000 | 8.063 | 5.025 |
10 | * | 2.050 | 20.000 | 16 | 12.075 | 1.038 | 10.088 | 17.000 | 13.050 | 3.038 | 10.075 | 6.000 |
12 | * | 2.062 | 22.000 | 20 | 15.000 | 1.038 | 12.088 | 19.025 | 15.075 | 3.062 | 12.075 | 6.012 |
14 | * | 2.075 | 23.075 | 20 | 16.025 | 1.050 | 14.014 | 20.075 | 17.000 | 3.069 | 14.000 | 6.050 |
16 | * | 3.000 | 27.000 | 20 | 18.050 | 1.063 | 16.016 | 23.075 | 19.050 | 4.019 | 16.000 | 7.000 |
18 | * | 3.025 | 29.025 | 20 | 21.000 | 1.075 | 18.018 | 25.075 | 21.050 | 4.062 | 18.000 | 7.025 |
20 | * | 3.050 | 32.000 | 24 | 23.000 | 1.075 | 20.020 | 28.050 | 24.000 | 5.000 | 20.000 | 7.050 |
22 | * | 3.075 | 34.025 | 24 | 25.025 | 1.088 | 22.022 | 30.063 | 26.025 | 5.025 | 22.000 | 7.075 |
24 | * | 4.000 | 37.000 | 24 | 27.025 | 2.000 | 24.025 | 33.000 | 28.025 | 5.050 | 24.000 | 8.000 |
Nominal Flange Size | Min. Thickness (T) | Outside Diameter (OD) | RF Dia.0 (R) | Diameter of Holes | No.0 of Bolt Holes | Bolt Circle (BC) | * WN Bore ID (WB) | SO Bore ID (SB) | Dia. Hub Base (HB) | SO LTH (SL) | Dia. Hub Top (HT) | WN LTH (WL) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
3 | 1.050 | 9.050 | 5.000 | 1.000 | 8 | 7.050 | * | 3.057 | 5.000 | 2.012 | 3.050 | 4.000 |
4 | 1.075 | 11.050 | 6.019 | 1.025 | 8 | 9.025 | * | 4.057 | 6.025 | 2.075 | 4.050 | 4.050 |
5 | 2.000 | 13.075 | 7.031 | 1.038 | 8 | 11.000 | * | 5.066 | 7.050 | 3.012 | 5.056 | 5.000 |
6 | 2.019 | 15.000 | 8.050 | 1.025 | 12 | 12.050 | * | 6.072 | 9.025 | 3.038 | 6.063 | 5.050 |
8 | 2.050 | 18.050 | 10.063 | 1.050 | 12 | 15.050 | * | 8.072 | 11.075 | 4.000 | 8.063 | 6.038 |
10 | 2.075 | 21.050 | 12.075 | 1.050 | 16 | 18.050 | * | 10.088 | 14.050 | 4.025 | 10.075 | 7.025 |
12 | 3.012 | 24.000 | 15.000 | 1.050 | 20 | 21.000 | * | 12.088 | 16.050 | 4.063 | 12.075 | 7.088 |
14 | 3.038 | 25.025 | 16.025 | 1.063 | 20 | 22.000 | * | 14.014 | 17.075 | 5.012 | 14.000 | 8.038 |
16 | 3.050 | 27.075 | 18.050 | 1.075 | 20 | 24.025 | * | 16.016 | 20.000 | 5.025 | 16.000 | 8.050 |
18 | 4.000 | 31.000 | 21.000 | 2.000 | 20 | 27.000 | * | 18.018 | 22.025 | 6.000 | 18.000 | 9.000 |
20 | 4.025 | 33.075 | 23.000 | 2.013 | 20 | 29.050 | * | 20.020 | 24.050 | 6.025 | 20.000 | 9.075 |
24 | 5.050 | 41.000 | 27.025 | 2.063 | 20 | 35.050 | * | 24.025 | 29.050 | 8.000 | 24.000 | 11.050 |
Nominal Flange Size | Min. Thickness (T) | Outside Diameter (OD) | No. of Bolt Holes | RF Dia. (R) | Bolt Circle (BC) | Diameter of Holes | * WN Bore ID (WB) | So Bore ID (SB) | Dia. Hub Top (HT) | Dia. Hub Base (HB) | SO LTH (SL) | WN LTH (WL) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1⁄2 | 0.088 | 4.075 | 4 | 1.038 | 3.025 | 0.088 | * | 0.088 | 0.084 | 1.050 | 1.025 | 2.038 |
3⁄4 | 1.000 | 5.012 | 4 | 1.069 | 3.050 | 0.088 | * | 1.009 | 1.005 | 1.075 | 1.038 | 2.075 |
1 | 1.012 | 5.088 | 4 | 2.000 | 4.000 | 1.000 | * | 1.036 | 1.032 | 2.006 | 1.062 | 2.088 |
11⁄4 | 1.012 | 6.025 | 4 | 2.050 | 4.038 | 1.000 | * | 1.070 | 1.066 | 2.050 | 1.062 | 2.088 |
11⁄2 | 1.025 | 7.000 | 4 | 2.088 | 4.088 | 1.012 | * | 1.095 | 1.090 | 2.075 | 1.075 | 3.025 |
2 | 1.050 | 8.050 | 8 | 3.063 | 6.050 | 1.000 | * | 2.044 | 2.038 | 4.012 | 2.025 | 4.000 |
21⁄2 | 1.062 | 9.062 | 8 | 4.013 | 7.050 | 1.012 | * | 2.094 | 2.088 | 4.088 | 2.050 | 4.012 |
3 | 1.088 | 10.050 | 8 | 5.000 | 8.000 | 1.025 | * | – | 3.050 | 5.025 | – | 4.062 |
4 | 2.012 | 12.025 | 8 | 6.019 | 9.050 | 1.038 | * | – | 4.050 | 6.038 | – | 4.088 |
5 | 2.088 | 14.075 | 8 | 7.031 | 11.050 | 1.063 | * | – | 5.056 | 7.075 | – | 6.012 |
6 | 3.025 | 15.050 | 12 | 8.050 | 12.050 | 1.050 | * | – | 6.063 | 9.000 | – | 6.075 |
8 | 3.062 | 19.000 | 12 | 10.063 | 15.050 | 1.075 | * | – | 8.063 | 11.050 | – | 8.038 |
10 | 4.025 | 23.000 | 12 | 12.075 | 19.000 | 2.000 | * | – | 10.075 | 14.050 | – | 10.000 |
12 | 4.088 | 26.050 | 16 | 15.000 | 22.050 | 2.012 | * | – | 12.075 | 17.075 | – | 11.012 |
14 | 5.025 | 29.050 | 16 | 16.025 | 25.000 | 2.038 | * | – | 14.000 | 19.050 | – | 11.075 |
16 | 5.075 | 32.050 | 16 | 18.050 | 27.075 | 2.063 | * | – | 16.000 | 21.075 | – | 12.025 |
18 | 6.038 | 36.000 | 16 | 21.000 | 30.050 | 2.088 | * | – | 18.000 | 23.050 | – | 12.088 |
20 | 7.000 | 38.075 | 16 | 23.000 | 32.075 | 3.012 | * | – | 20.000 | 25.025 | – | 14.000 |
24 | 8.000 | 46.000 | 16 | 27.025 | 39.000 | 3.063 | * | – | 24.000 | 30.000 | – | 16.000 |
Nominal Flange Size | Min. Thickness (T) | Outside Diameter (OD) | No. of Bolt Holes | RF Dia. (R) | Bolt Circle (BC) | WN LTH (WL) | Diameter of Holes | Dia. Hub Top (HT) | Dia. Hub Base (HB) | SO LTH (SL) | * WN Bore ID (WB) |
---|---|---|---|---|---|---|---|---|---|---|---|
1⁄2 | 1.019 | 5.025 | 4 | 1.038 | 3.050 | 2.088 | 0.088 | 0.084 | 1.069 | 1.056 | * |
3⁄4 | 1.025 | 5.050 | 4 | 1.069 | 3.075 | 3.012 | 0.088 | 1.005 | 2.000 | 1.069 | * |
1 | 1.038 | 6.025 | 4 | 2.000 | 4.025 | 3.050 | 1.000 | 1.032 | 2.025 | 1.088 | * |
11⁄4 | 1.050 | 7.025 | 4 | 2.050 | 5.013 | 3.075 | 1.012 | 1.066 | 2.088 | 2.006 | * |
11⁄2 | 1.075 | 8.000 | 4 | 2.088 | 5.075 | 4.038 | 1.025 | 1.090 | 3.012 | 2.038 | * |
2 | 2.000 | 9.025 | 8 | 3.063 | 6.075 | 5.000 | 1.012 | 2.038 | 3.075 | 2.075 | * |
21⁄2 | 2.025 | 10.050 | 8 | 4.013 | 7.075 | 5.062 | 1.025 | 2.088 | 4.050 | 3.012 | * |
3 | 2.062 | 12.000 | 8 | 5.000 | 9.000 | 6.062 | 1.038 | 3.050 | 5.025 | – | * |
4 | 3.000 | 14.000 | 8 | 6.019 | 10.075 | 7.050 | 1.063 | 4.050 | 6.050 | – | * |
5 | 3.062 | 16.050 | 8 | 7.031 | 12.075 | 9.000 | 1.088 | 5.056 | 8.000 | – | * |
6 | 4.025 | 19.000 | 8 | 8.050 | 14.050 | 10.075 | 2.012 | 6.063 | 9.025 | – | * |
8 | 5.000 | 21.075 | 12 | 10.063 | 17.025 | 12.050 | 2.012 | 8.063 | 12.000 | – | * |
10 | 6.050 | 26.050 | 12 | 12.075 | 21.025 | 16.050 | 2.063 | 10.075 | 14.075 | – | * |
12 | 7.025 | 30.000 | 12 | 15.000 | 24.038 | 18.025 | 2.088 | 12.075 | 17.038 | – | * |
by Pressure Class and Size Flange Weights | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | 150 # | 300 # | 600 # | 900 # | 1500 # | 2500 # | |||||||||||||
SO | WN | BLD | SO | WN | BLD | SO | WN | BLD | WN | SO | BLD | SO | WN | BLD | SO | WN | BLD | ||
3/4" | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 3 | SEE 1500 # WEIGHTS | 5 | 6 | 6 | 8 | 8 | 8 | |||
1/2" | 1 | 2 | 1 | 1 | 2 | 1 | 2 | 2 | 2 | SEE 1500 # WEIGHTS | 4 | 5 | 4 | 7 | 7 | 7 | |||
1 1/2" | 3 | 4 | 3 | 6 | 7 | 6 | 7 | 8 | 8 | SEE 1500 # WEIGHTS | 12 | 13 | 13 | 22 | 25 | 23 | |||
1" | 2 | 3 | 2 | 3 | 4 | 3 | 4 | 4 | 4 | SEE 1500 # WEIGHTS | 8 | 9 | 8 | 11 | 12 | 11 | |||
2 1/2" | 7 | 8 | 7 | 10 | 12 | 12 | 13 | 18 | 15 | SEE 1500 # WEIGHTS | 36 | 36 | 35 | 55 | 52 | 56 | |||
2" | 5 | 6 | 5 | 7 | 9 | 8 | 9 | 12 | 10 | SEE 1500 # WEIGHTS | 25 | 25 | 25 | 37 | 42 | 39 | |||
4" | 13 | 15 | 17 | 22 | 25 | 27 | 37 | 42 | 41 | 53 | 53 | 54 | 73 | 73 | 73 | 125 | 145 | 130 | |
3" | 8 | 10 | 9 | 13 | 15 | 16 | 16 | 23 | 20 | 31 | 26 | 29 | 48 | 48 | 48 | 83 | 94 | 86 | |
6" | 19 | 24 | 26 | 39 | 42 | 50 | 80 | 81 | 86 | 110 | 110 | 115 | 165 | 165 | 160 | 325 | 380 | 345 | |
5" | 15 | 19 | 20 | 28 | 32 | 35 | 63 | 68 | 68 | 86 | 83 | 87 | 130 | 130 | 140 | 210 | 245 | 225 | |
10" | 43 | 52 | 70 | 81 | 91 | 124 | 170 | 190 | 230 | 260 | 245 | 290 | 435 | 455 | 510 | 930 | 1075 | 1025 | |
8" | 30 | 39 | 45 | 58 | 67 | 81 | 115 | 120 | 140 | 175 | 170 | 200 | 260 | 275 | 300 | 485 | 580 | 530 | |
14" | 90 | 110 | 140 | 165 | 180 | 250 | 230 | 280 | 355 | 400 | 400 | 520 | NA | 940 | 975 | NA | NA | NA | |
12" | 64 | 80 | 110 | 115 | 140 | 185 | 200 | 225 | 295 | 325 | 325 | 415 | 580 | 690 | 690 | 1100 | 1525 | 1300 | |
18" | 130 | 150 | 220 | 250 | 320 | 395 | 400 | 475 | 630 | 680 | 600 | 850 | NA | 1625 | 1750 | NA | NA | NA | |
16" | 98 | 140 | 180 | 190 | 250 | 295 | 330 | 390 | 495 | 495 | 425 | 600 | NA | 1250 | 1300 | NA | NA | NA | |
22" | 185 | 225 | 355 | 370 | 465 | 640 | 590 | 720 | 1000 | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
20" | 165 | 180 | 285 | 315 | 400 | 505 | 510 | 590 | 810 | 830 | 730 | 1075 | NA | 2050 | 2225 | NA | NA | NA | |
24" | 220 | 260 | 430 | 475 | 580 | 790 | 730 | 830 | 1250 | 1500 | 1400 | 2025 | NA | 3325 | 3625 | NA | NA | NA |
There are six types of flange faces
Flange Description | Flange Price |
Flange DIN Pn10 Pn16 Plate RF | US $ 1.1 / Piece |
Forged Weld Neck Stainless Steel Flange | US $ 1.0-320.0 / Piece |
ASME B16.5 Weld Neck Flange | US $ 0.6-1.6 / Piece |
ANSI B16.5 Forged Flanges of DN10-DN1000 | US $ 0.6-1.0 / Piece |
Forged Flange Acc. to ANSI DIN En1092-1 GOST | US $ 5.18-5.88 / kg |
Forged Thread Flange | Min. Order: 10 Pieces |
RF Blind Welding Neck Flange | US $ 0.5-200 / Piece |
Flange ANSI 150# Lbs Sorf | US $ 1.9 / Piece |
Flange pressure ratings can be classified as the maximum pressure allowed in a flange that can withstand increasing temperatures. As there is, increase in temperature the rating of the flanges decrease. The material used in producing these flanges influences the rating of the flange. The rating can be calculated using two methods.
BS10 Imperial Flange – Pressure ratings in PSI
Flange Temperature
| Max Hydraulic | |||||||
0°F to 450°F | 800°F | 600°F | 500°F | 700°F | 900°F | 850°F | Test Pressure | |
E | 200 | 100 | 155 | 185 | 130 | - | - | 300 |
D | 100 | 50 | 80 | 95 | 65 | - | - | 150 |
H | 500 | 250 | 395 | 465 | 320 | 115 | 180 | 750 |
F | 300 | 150 | 235 | 280 | 195 | - | - | 450 |
K | 900 | 450 | 705 | 835 | 580 | 205 | 325 | 1350 |
J | 700 | 350 | 550 | 650 | 450 | 160 | 255 | 1050 |
S | 1800 | 900 | 1415 | 1670 | 1155 | 415 | 655 | 2700 |
R | 1200 | 600 | 945 | 1115 | 770 | 275 | 435 | 1800 |
T | 2800 | 1400 | 2200 | 2600 | 1800 | 645 | 1025 | 4200 |
BS4504 Metric Flange – Pressure ratings in BAR
Flange Temperature | ||||||||
FLANGE TABLE | 475°C | 250°C | -10°C to 200°C | 300°C | 450°C | 400°C | 350°C | 425°C |
6 | - | 5.05 | 6 | 5 | - | - | - | - |
10 | - | 9 | 10 | 8 | - | 6 | 7 | - |
16 | - | 15 | 16 | 13 | - | 9 | 11 | - |
25 | 6 | 24 | 25 | 21 | 9 | 14 | 17 | 12 |
40 | 10 | 38 | 40 | 33 | 15 | 23 | 28 | 20 |
64 | 16 | 61 | 64 | 53 | 24 | 36 | 44 | 32 |
100 | 25 | 95 | 100 | 83 | 37 | 57 | 70 | 50 |
160 | 40 | 152 | 160 | 132 | 60 | 92 | 112 | 80 |
BS1560/ANSI B16.5 Flange – Pressure ratings in PSI
Flange Temperature | ||||||||
CLASS | 750°F | 400°F | -20°F to 200°F | 600°F | 900°F | 850°F | 1000°F | 950°F |
2500 | 3550 | 5550 | 5830 | 4620 | 1855 | 2500 | 715 | 1285 |
300 | 425 | 665 | 700 | 555 | 225 | 300 | 85 | 155 |
150 | 100 | 180 | 240 | 130 | 70 | 82 | 40 | 55 |
900 | 1275 | 2000 | 2100 | 1660 | 670 | 900 | 255 | 465 |
600 | 850 | 1330 | 1400 | 1100 | 445 | 600 | 170 | 310 |
1500 | 2125 | 3330 | 3500 | 2770 | 1115 | 1500 | 430 | 770 |
EN 1092-1 PN16 FLANGE DIMENSIONS | |||||||||
Weight (7,85 Kg/dm3) | Rated Diameter | Pipe | Flange | Screws | |||||
KG | b | k | d1 | D | Thread | d2 | Bolt holes | ||
0,602 | 10 | 17,2 | 14 | 60 | 18,0 | 90 | M12 | 14 | 4 |
0,668 | 15 | 21,3 | 14 | 65 | 22,0 | 95 | M12 | 14 | 4 |
0,933 | 20 | 26,9 | 16 | 75 | 27,5 | 105 | M12 | 14 | 4 |
1,106 | 25 | 33,7 | 16 | 85 | 34,5 | 115 | M12 | 14 | 4 |
1,816 | 32 | 42,4 | 18 | 100 | 43,5 | 140 | M16 | 18 | 4 |
2,075 | 40 | 48,3 | 18 | 110 | 49,5 | 150 | M16 | 18 | 4 |
2,723 | 50 | 60,3 | 20 | 125 | 61,5 | 165 | M16 | 18 | 4 |
3,310 | 65 | 76,1 | 20 | 145 | 77,5 | 185 | M16 | 18 | 4 |
3,592 | 80 | 88,9 | 20 | 160 | 90,5 | 200 | M16 | 18 | 8 |
4,375 | 100 | 114,3 | 22 | 180 | 116,0 | 220 | M16 | 18 | 8 |
5,394 | 125 | 139,7 | 22 | 210 | 141,5 | 250 | M16 | 18 | 8 |
7,123 | 150 | 168,3 | 24 | 240 | 170,5 | 285 | M20 | 22 | 8 |
9,705 | 200 | 219,1 | 26 | 295 | 221,5 | 340 | M20 | 22 | 12 |
14,164 | 250 | 273,0 | 29 | 355 | 276,5 | 405 | M24 | 26 | 12 |
18,928 | 300 | 323,9 | 32 | 410 | 327,5 | 460 | M24 | 26 | 12 |
28,118 | 350 | 355,6 | 35 | 470 | 359,0 | 520 | M24 | 26 | 16 |
35,754 | 400 | 406,4 | 38 | 525 | 411,0 | 580 | M27 | 30 | 16 |
45,992 | 450 | 457,0 | 42 | 585 | 462,0 | 640 | M27 | 30 | 20 |
63,832 | 500 | 508,0 | 46 | 650 | 513,5 | 715 | M30 | 33 | 20 |
101,285 | 600 | 610,0 | 55 | 770 | 616,5 | 840 | M33 | 36 | 20 |
111,103 | 700 | 711,0 | 63 | 840 | 714,2 | 910 | M33 | 36 | 24 |
158,555 | 800 | 813,0 | 74 | 950 | 815,8 | 1025 | M36 | 39 | 24 |
192,239 | 900 | 914,0 | 82 | 1050 | 917,4 | 1125 | M36 | 39 | 28 |
269,554 | 1000 | 1016,0 | 90 | 1170 | 1019,0 | 1255 | M39 | 42 | 28 |
![]() | edgewise, Flat steel, as a flange |
flat, as a tire, Flat steel | |
square steel | |
Round steel | |
thighs outwards, Angle steel, | |
wide leg to the outside, Angle steel | |
narrow leg to the outside Angle steel, | |
thighs inside, Angle steel | |
wide leg inside, Angle steel | |
narrow leg inside, Angle steel | |
bridge inside, T-steel | |
bridge to the outside, T-steel | |
foot bent upright, T-steel | |
opening to the outside, U-steel | |
opening inwards, U-steel | |
(bent around the X-axis) Double-T carrier | |
(bent around the Y-axis) Double-T carrier | |
high edge Rectangular tube | |
flat, Rectangular tube | |
square tube | |
round tube |
Type | EN | DIN |
---|---|---|
Blind Flanges | 05 | 2527 |
Weld Neck Flanges | 11 | 2627 – 2638 |
Flat Flanges for Welding | 01 | 2573 | 2576 |
Threaded Flanges | 13 | 2558 | 2565 – 2569 |
Loose Flanges | 04 | 2673 – 2676 |
Loose Flanges | 02 | 2641 | 2642 | 2655 | 2656 |
Weld Neck Collars | 34 | 2673 – 2676 |
Weld-on Collars | 32 | 2641 | 2642 | 2655 | 2656 |
Slip-on Flanges | 12 | 86029 | 86030 |
Exhaust gas line Flanges | 86044 | |
Lapped Flanges | 86037 | |
Weld Flanges for Pressure Vessels | 28031 | 28033 | |
Welding Flanges | 86041 | |
in accordance with drawings Special Flanges |
MATERIAL GRADES | P250GH
|
|
---|---|---|
BLIND FLANGES | Type 05 according to EN 1092-1
| ANSI B16.5, ANSI B16.47 Series A + B
|
FLANGES | EN V-flanges type 11 according to EN 1092-1
| ASTM WN flanges according to ANSI B16.5, ANSI B16.47 series A + B
|
LOOSE FLANGES, SMOOTH FLANGES, FLARES AND COLLARS | EN 1092-1 | different pressure levels according to ANSI B16.5
|
VARIOUS SEALING STRIP SHAPES | Form A, Form B1 / B2, Form C, Form D, Form E, Form F, Form G, Form H Linseneindrehung |
|
Flange Schedule/Class | Max. Pressure | Pipe Size - Pipe Flanges | Flange Connection Type |
---|---|---|---|
ASME B16.5 Class 150 | 150 psi | 1/2" | FNPT |
275 psi | 1/2" | Socket Weld | |
150 psi | 1/2" | Welded | |
150 psi | 3/4" | FNPT | |
275 psi | 3/4" | Socket Weld | |
275 psi | 1-1/4" | Socket Weld | |
275 psi | 1-1/2" | Socket Weld | |
150 psi | 2" | FNPT | |
275 psi | 2" | Socket Weld | |
275 psi | 2-1/2" | Socket Weld | |
275 psi | 3" | Socket Weld | |
150 psi | 4" | FNPT | |
275 psi | 4" | Socket Weld | |
ASME B16.5 Class 300 | 720 psi | 1/2" | Slip On |
1/2" | Slip On | ||
1" | Slip On | ||
1" | Slip On | ||
1-1/4" | FNPT | ||
1-1/4" | Slip On | ||
1-1/2" | |||
1-1/2" | |||
2" | |||
2" | |||
2-1/2" | |||
2-1/2" | |||
3" | |||
3" | |||
4" | |||
4" |