Our NSF-61-372 certified Class 150 Forged Stainless Steel Raised Face Weld-Neck Flanges are manufactured from ASTM A182 dual grade 304/304L and 316/316L stainless steel, and the dimensions and tolerances meet ASME B16.47 Series B specifications. We manufacture these flanges in domestic (AIS) options, and our machine shop can modify ANSI/ASME flanges to spec.
These products have been certified by NSF against the requirements of NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372. See official listing.
Downloads:
| API Part Number | Nominal Pipe Size | O.D. | I.D. | Ø B.H.C. | Ø B.H. | # B.H. | THK 1 | THK 2 | Ø H.D. | Ø A (Weld Point) | Ø R.F. | R.H. (RAD) | Weight (Lbs.) |
| SRFWN2600-150B-CLN | 26 | 30.94 | specified by purchaser | 29.31 | 0.875 | 36 | 1.57 | 3.44 | 26.94 | 26.06 | 28.00 | 0.38 | 120.0 |
| SRFWN2800-150B-CLN | 28 | 32.94 | specified by purchaser | 31.31 | 0.875 | 40 | 1.69 | 3.69 | 28.94 | 28.06 | 30.00 | 0.38 | 140.0 |
| SRFWN3000-150B-CLN | 30 | 34.94 | specified by purchaser | 33.31 | 0.875 | 44 | 1.69 | 3.88 | 31.00 | 30.06 | 32.00 | 0.38 | 150.0 |
| SRFWN3200-150B-CLN | 32 | 37.06 | specified by purchaser | 35.44 | 0.875 | 48 | 1.75 | 4.19 | 33.06 | 32.06 | 34.00 | 0.38 | 170.0 |
| SRFWN3400-150B-CLN | 34 | 39.56 | specified by purchaser | 37.69 | 1.000 | 40 | 1.88 | 4.28 | 35.12 | 34.06 | 36.25 | 0.38 | 210.0 |
| SRFWN3600-150B-CLN | 36 | 41.62 | specified by purchaser | 39.75 | 1.000 | 44 | 2.00 | 4.57 | 37.19 | 36.06 | 38.25 | 0.38 | 240.0 |
| SRFWN3800-150B-CLN | 38 | 44.25 | specified by purchaser | 42.12 | 1.125 | 40 | 2.07 | 4.82 | 39.25 | 38.12 | 40.25 | 0.38 | 290.0 |
| SRFWN4000-150B-CLN | 40 | 46.25 | specified by purchaser | 44.12 | 1.125 | 44 | 2.13 | 5.00 | 41.31 | 40.12 | 42.50 | 0.38 | 310.0 |
| SRFWN4200-150B-CLN | 42 | 48.25 | specified by purchaser | 46.12 | 1.125 | 48 | 2.25 | 5.19 | 43.38 | 42.12 | 44.50 | 0.44 | 345.0 |
| SRFWN4400-150B-CLN | 44 | 50.25 | specified by purchaser | 48.12 | 1.125 | 52 | 2.32 | 5.32 | 45.38 | 44.12 | 46.50 | 0.44 | 370.0 |
| SRFWN4600-150B-CLN | 46 | 52.81 | specified by purchaser | 50.56 | 1.250 | 40 | 2.38 | 5.63 | 47.44 | 46.12 | 48.62 | 0.44 | 435.0 |
| SRFWN4800-150B-CLN | 48 | 54.81 | specified by purchaser | 52.56 | 1.250 | 44 | 2.50 | 5.82 | 49.50 | 48.12 | 50.75 | 0.44 | 480.0 |
| SRFWN5000-150B-CLN | 50 | 56.81 | specified by purchaser | 54.56 | 1.250 | 48 | 2.63 | 6.00 | 51.50 | 50.12 | 52.75 | 0.44 | 520.0 |
| SRFWN5200-150B-CLN | 52 | 58.81 | specified by purchaser | 56.56 | 1.250 | 52 | 2.69 | 6.13 | 53.56 | 52.12 | 54.75 | 0.44 | 550.0 |
| SRFWN5400-150B-CLN | 54 | 61.00 | specified by purchaser | 58.75 | 1.250 | 56 | 2.75 | 6.32 | 55.62 | 54.12 | 56.75 | 0.44 | 620.0 |
| SRFWN5600-150B-CLN | 56 | 63.00 | specified by purchaser | 60.75 | 1.250 | 60 | 2.82 | 6.50 | 57.69 | 56.12 | 58.75 | 0.56 | 650.0 |
| SRFWN5800-150B-CLN | 58 | 65.94 | specified by purchaser | 63.44 | 1.375 | 48 | 2.88 | 6.82 | 59.69 | 58.12 | 60.75 | 0.56 | 780.0 |
| SRFWN6000-150B-CLN | 60 | 67.94 | specified by purchaser | 65.44 | 1.375 | 52 | 2.94 | 7.00 | 61.81 | 60.12 | 63.00 | 0.56 | 850.0 |
