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Corrosion-resistant Class 150 Forged Stainless Steel Raised Face Blind Flanges are manufactured from 304L and 316L stainless steel, and the dimensions and tolerances meet ANSI B16.5 and ASTM A182 specifications.
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| API Part Number | Size | O.D. | I.D. | Ø B.H.C. | Ø B.H. | # B.H. | THK | Ø RF | Weight Lbs |
| SRFB0050 | 0.5 | 3.50 | BLIND | 2.38 | 0.630 | 4 | 0.440 | 1.375 | 3.0 |
| SRFB0075 | 0.75 | 3.88 | BLIND | 2.75 | 0.630 | 4 | 0.500 | 1.688 | 4.0 |
| SRFB0100 | 1 | 4.25 | BLIND | 3.13 | 0.630 | 4 | 0.563 | 2.000 | 4.5 |
| SRFB0125 | 1.25 | 4.63 | BLIND | 3.50 | 0.630 | 4 | 0.630 | 2.500 | 5.0 |
| SRFB0150 | 1.5 | 5.00 | BLIND | 3.88 | 0.630 | 4 | 0.690 | 2.875 | 5.5 |
| SRFB0200 | 2 | 6.00 | BLIND | 4.75 | 0.750 | 4 | 0.750 | 3.625 | 6.0 |
| SRFB0250 | 2.5 | 7.00 | BLIND | 5.50 | 0.750 | 4 | 0.880 | 4.125 | 9.0 |
| SRFB0300 | 3 | 7.50 | BLIND | 6.00 | 0.750 | 4 | 0.940 | 5.000 | 11.5 |
| SRFB0350 | 3.5 | 8.50 | BLIND | 7.00 | 0.750 | 8 | 0.940 | 5.500 | 13.5 |
| SRFB0400 | 4 | 9.00 | BLIND | 7.50 | 0.750 | 8 | 0.940 | 6.188 | 15.5 |
| SRFB0500 | 5 | 10.00 | BLIND | 8.50 | 0.875 | 8 | 0.940 | 7.313 | 19.5 |
| SRFB0600 | 6 | 11.00 | BLIND | 9.50 | 0.875 | 8 | 1.000 | 8.500 | 25.5 |
| SRFB0800 | 8 | 13.50 | BLIND | 11.75 | 0.875 | 8 | 1.130 | 10.625 | 44.5 |
| SRFB1000 | 10 | 16.00 | BLIND | 14.25 | 1.000 | 12 | 1.190 | 12.750 | 67.0 |
| SRFB1200 | 12 | 19.00 | BLIND | 17.00 | 1.000 | 12 | 1.250 | 15.000 | 98.0 |
| SRFB1400 | 14 | 21.00 | BLIND | 18.75 | 1.125 | 12 | 1.380 | 16.250 | 134.0 |
| SRFB1600 | 16 | 23.50 | BLIND | 21.25 | 1.125 | 16 | 1.440 | 18.500 | 176.0 |
| SRFB1800 | 18 | 25.00 | BLIND | 22.75 | 1.250 | 16 | 1.563 | 21.000 | 215.0 |
| SRFB2000 | 20 | 27.50 | BLIND | 25.00 | 1.250 | 20 | 1.690 | 23.000 | 286.0 |
| SRFB2200 | 22 | 29.50 | BLIND | 27.25 | 1.375 | 20 | 1.840 | 25.250 | 358.0 |
| SRFB2400 | 24 | 32.00 | BLIND | 29.50 | 1.375 | 20 | 1.880 | 27.250 | 426.0 |
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