| Customization: | Available |
|---|---|
| Standard: | ANSI, DIN, GB, JIS |
| Type: | Back-up Flange |
|
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Stainless steel Back up Flange :
Back up Flanges are widely used in special circumstances with their main advantage being that they can be attached to the pipe without welding.
We are specializing in manufacturing and exportation of steel Back up Flanges.
Stainless Steel Back up Flanges : ASTM A 182, A 240 Back up Flanges
Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205,
Back up Flanges Size : 1/8" NB TO 48"NB.
Back up Flanges Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 #.
| Nominal Pipe Size |
Outside Diameter (OD) |
Inside Diameter (ID) |
Thickness (T) |
Bolt Circle (BC) |
Hole Diameter |
No. of Bolt Holes |
45 Degree Bevel (B) |
Approx. Weight (lbs) |
| Drilling Pattern - 150# | ||||||||
| 2 | 6.00 | 2.46 | 0.500 | 4.75 | 0.750 | 4 | 0.250 | 2.9 |
| 2 1/2 | 7.00 | 3.00 | 0.500 | 5.50 | 0.750 | 4 | 0.250 | 4.2 |
| 3 | 7.50 | 3.60 | 0.500 | 6.00 | 0.750 | 4 | 0.250 | 4.4 |
| 4 | 9.00 | 4.60 | 0.500 | 7.50 | 0.750 | 8 | 0.250 | 5.6 |
| 5 | 10.00 | 5.69 | 0.500 | 8.50 | 0.875 | 8 | 0.250 | 6.9 |
| 6 | 11.00 | 6.75 | 0.625 | 9.50 | 0.875 | 8 | 0.250 | 9.1 |
| 8 | 13.50 | 8.75 | 0.625 | 11.75 | 0.875 | 8 | 0.312 | 12.9 |
| 10 | 16.00 | 10.95 | 0.625 | 14.25 | 1.000 | 12 | 0.312 | 16.2 |
| 12 | 19.00 | 12.95 | 0.750 | 17.00 | 1.000 | 12 | 0.312 | 29.3 |
| 14 | 21.00 | 14.20 | 0.750 | 18.75 | 1.125 | 12 | 0.312 | 36.2 |
| 16 | 23.50 | 16.20 | 0.750 | 21.25 | 1.125 | 16 | 0.375 | 42.0 |
| 18 | 25.00 | 18.20 | 0.750 | 22.75 | 1.250 | 16 | 0.375 | 42.3 |
| 20 | 27.50 | 20.25 | 0.750 | 25.00 | 1.250 | 20 | 0.375 | 49.7 |
| 22 | 29.50 | 22.25 | 1.000 | 27.25 | 1.375 | 20 | 0.375 | 73.7 |
| 24 | 32.00 | 24.25 | 1.000 | 29.50 | 1.375 | 20 | 0.375 | 86.4 |
| 26 | 34.25 | 26.25 | 1.000 | 31.75 | 1.375 | 24 | 0.375 | 97.5 |
| 30 | 38.75 | 30.38 | 1.000 | 36.00 | 1.375 | 28 | 0.375 | 113.1 |
| 32 | 41.75 | 32.38 | 1.125 | 38.50 | 1.625 | 28 | 0.375 | 153.4 |
| 36 | 46.00 | 36.38 | 1.125 | 42.75 | 1.625 | 32 | 0.375 | 175.5 |
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