Our NSF®-61-372 certified AWWA Class SD Stainless Steel Ring Flanges meet AWWA C228 specifications and ANSI #150 drill pattern. At atmospheric temperature, this slip-on flange has a pressure rating of 175psi for sizes between 4 and 12 inches, and up to 150psi for flanges 14 inches and larger. We manufacture these flanges in domestic (AIS) options, and our machine shop can modify AWWA 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 | Size | O.D. | I.D. | Ø B.H.C. | Ø B.H. | # B.H. | THK | Weight Lbs |
| SPF0200-D-CLN | 2 | 6.00 | 2.44 | 4.75 | 0.750 | 4 | 0.625 | 4.1 |
| SPF0250-D-CLN | 2.5 | 7.00 | 2.94 | 5.50 | 0.750 | 4 | 0.625 | 5.4 |
| SPF0300-D-CLN | 3 | 7.50 | 3.57 | 6.00 | 0.750 | 4 | 0.625 | 5.9 |
| SPF0400-D-CLN | 4 | 9.00 | 4.57 | 7.50 | 0.750 | 8 | 0.625 | 8.1 |
| SPF0500-D-CLN | 5 | 10.00 | 5.66 | 8.50 | 0.875 | 8 | 0.625 | 9.1 |
| SPF0600-D-CLN | 6 | 11.00 | 6.72 | 9.50 | 0.875 | 8 | 0.688 | 10.7 |
| SPF0800-D-CLN | 8 | 13.50 | 8.72 | 11.75 | 0.875 | 8 | 0.688 | 15.7 |
| SPF1000-D-CLN | 10 | 16.00 | 10.88 | 14.25 | 1.000 | 12 | 0.688 | 19.3 |
| SPF1200-D-CLN | 12 | 19.00 | 12.88 | 17.00 | 1.000 | 12 | 0.812 | 33.9 |
| SPF1400-D-CLN | 14 | 21.00 | 14.19 | 18.75 | 1.125 | 12 | 0.938 | 47.3 |
| SPF1600-D-CLN | 16 | 23.50 | 16.19 | 21.25 | 1.125 | 16 | 1.000 | 60.8 |
| SPF1800-D-CLN | 18 | 25.00 | 18.19 | 22.75 | 1.250 | 16 | 1.062 | 65.2 |
| SPF2000-D-CLN | 20 | 27.50 | 20.19 | 25.00 | 1.250 | 20 | 1.125 | 81.2 |
| SPF2200-D-CLN | 22 | 29.50 | 22.19 | 27.25 | 1.375 | 20 | 1.188 | 90.8 |
| SPF2400-D-CLN | 24 | 32.00 | 24.19 | 29.50 | 1.375 | 20 | 1.250 | 112.0 |
| SPF2600-D-CLN | 26 | 34.25 | 26.19 | 31.75 | 1.375 | 24 | 1.312 | 132.0 |
| SPF2800-D-CLN | 28 | 36.50 | 28.19 | 34.00 | 1.375 | 28 | 1.312 | 148.0 |
| SPF3000-D-CLN | 30 | 38.75 | 30.19 | 36.00 | 1.375 | 28 | 1.375 | 169.0 |
| SPF3200-D-CLN | 32 | 41.75 | 32.19 | 38.50 | 1.625 | 28 | 1.500 | 211.0 |
| SPF3400-D-CLN | 34 | 43.75 | 34.19 | 40.50 | 1.625 | 32 | 1.500 | 219.0 |
| SPF3600-D-CLN | 36 | 46.00 | 36.19 | 42.75 | 1.625 | 32 | 1.625 | 265.0 |
| SPF3800-D-CLN | 38 | 48.75 | 38.19 | 45.25 | 1.625 | 32 | 1.625 | 300.0 |
| SPF4000-D-CLN | 40 | 50.75 | 40.19 | 47.25 | 1.625 | 36 | 1.625 | 311.0 |
| SPF4200-D-CLN | 42 | 53.00 | 42.19 | 49.50 | 1.625 | 36 | 1.750 | 362.0 |
| SPF4400-D-CLN | 44 | 55.25 | 44.19 | 51.75 | 1.625 | 40 | 1.750 | 385.0 |
| SPF4600-D-CLN | 46 | 57.25 | 46.19 | 53.75 | 1.625 | 40 | 1.750 | 404.0 |
| SPF4800-D-CLN | 48 | 59.50 | 48.19 | 56.00 | 1.625 | 44 | 1.875 | 457.0 |
| SPF5000-D-CLN | 50 | 61.75 | 50.19 | 58.25 | 1.875 | 44 | 2.000 | 505.0 |
| SPF5200-D-CLN | 52 | 64.00 | 52.19 | 60.50 | 1.875 | 44 | 2.000 | 539.0 |
| SPF5400-D-CLN | 54 | 66.25 | 54.19 | 62.75 | 1.875 | 44 | 2.125 | 611.0 |
| SPF6000-D-CLN | 60 | 73.00 | 60.19 | 69.25 | 1.875 | 52 | 2.250 | 760.0 |
| SPF6600-D-CLN | 66 | 80.00 | 66.19 | 76.00 | 1.875 | 52 | 2.500 | 1021.0 |
| SPF7200-D-CLN | 72 | 86.50 | 72.19 | 82.50 | 1.875 | 60 | 2.625 | 1203.0 |
