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 B16.5 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 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.) |
| SRFWN0050-S40-CLN | 0.5 | 3.50 | 0.62 | 2.38 | 0.63 | 4 | 0.44 | 1.81 | 1.19 | .84 | 1.38 | 0.188 | 1.25 |
| SRFWN0075-S40-CLN | 0.75 | 3.88 | 0.82 | 2.75 | 0.63 | 4 | 0.50 | 2.00 | 1.5 | 1.05 | 1.69 | 0.188 | 1.70 |
| SRFWN0100-S40-CLN | 1 | 4.25 | 1.05 | 3.13 | 0.63 | 4 | 0.56 | 2.12 | 1.32 | 1.32 | 2.00 | 0.188 | 2.30 |
| SRFWN0125-S40-CLN | 1.25 | 4.63 | 1.38 | 3.50 | 0.63 | 4 | 0.63 | 2.19 | 1.66 | 1.66 | 2.50 | 0.188 | 3.10 |
| SRFWN0150-S40-CLN | 1.5 | 5.00 | 1.61 | 3.88 | 0.63 | 4 | 0.69 | 2.38 | 1.90 | 1.90 | 2.88 | 0.188 | 3.50 |
| SRFWN0200-S40-CLN | 2 | 6.00 | 2.07 | 4.75 | 0.75 | 4 | 0.75 | 2.44 | 2.38 | 2.38 | 3.63 | 0.188 | 5.00 |
| SRFWN0250-S40-CLN | 2.5 | 7.00 | 2.47 | 5.50 | 0.75 | 4 | 0.88 | 2.69 | 2.88 | 2.88 | 4.13 | 0.188 | 9.50 |
| SRFWN0300-S40-CLN | 3 | 7.50 | 3.07 | 6.00 | 0.75 | 4 | 0.94 | 2.69 | 3.50 | 3.50 | 5.00 | 0.188 | 12.00 |
| SRFWN0350-S40-CLN | 3.5 | 8.50 | 3.55 | 7.00 | 0.75 | 8 | 0.94 | 2.75 | 4.00 | 4.00 | 5.50 | 0.188 | 11.00 |
| SRFWN0400-S40-CLN | 4 | 9.00 | 4.03 | 7.50 | 0.75 | 8 | 0.94 | 2.94 | 4.50 | 4.50 | 6.19 | 0.188 | 16.83 |
| SRFWN0500-S40-CLN | 5 | 10.00 | 5.05 | 8.50 | 0.88 | 8 | 0.94 | 3.44 | 5.56 | 5.56 | 7.31 | 0.188 | 19.70 |
| SRFWN0600-S40-CLN | 6 | 11.00 | 6.07 | 9.50 | 0.88 | 8 | 1.00 | 3.44 | 6.63 | 6.63 | 8.50 | 0.250 | 22.77 |
| SRFWN0800-S40-CLN | 8 | 13.50 | 7.98 | 11.75 | 0.88 | 8 | 1.13 | 3.94 | 8.63 | 8.63 | 10.63 | 0.250 | 42.00 |
| SRFWN1000-S40-CLN | 10 | 16.00 | 10.02 | 14.25 | 1.00 | 12 | 1.19 | 3.94 | 10.75 | 10.75 | 12.75 | 0.250 | 56.50 |
| SRFWN1200-S40-CLN | 12 | 19.00 | 11.94 | 17.00 | 1.00 | 12 | 1.25 | 4.44 | 12.75 | 12.75 | 15.00 | 0.313 | 91.00 |
| SRFWN1400-S40-CLN | 14 | 21.00 | 13.12 | 18.75 | 1.13 | 12 | 1.38 | 4.94 | 14.00 | 14.00 | 16.25 | 0.313 | 114.00 |
| SRFWN1600-S40-CLN | 16 | 23.50 | 15.00 | 21.25 | 1.13 | 16 | 1.44 | 4.94 | 16.00 | 16.00 | 18.50 | 0.313 | 140.00 |
| SRFWN1800-S40-CLN | 18 | 25.00 | 16.88 | 22.75 | 1.25 | 16 | 1.56 | 5.44 | 18.00 | 18.00 | 21.00 | 0.313 | 150.00 |
| SRFWN2000-S40-CLN | 20 | 27.50 | 18.81 | 25.00 | 1.25 | 20 | 1.69 | 5.62 | 20.00 | 20.00 | 23.00 | 0.313 | 197.00 |
| SRFWN2400-S40-CLN | 24 | 32.00 | 22.62 | 29.50 | 1.38 | 20 | 1.88 | 5.94 | 24.00 | 24.00 | 27.25 | 0.313 | 260.00 |
