AWWA C207 Ring (Plate) Flange & Blind Flange Dimensions
This chart gives AWWA C207 ring (plate) flange and blind flange dimensions in millimetres for Class B, D, E and F — outside diameter, bore and thickness — for water transmission mains and pumping stations from 100 NB up to 3600 NB (4 to 144 inches).
Plate flanges are Teshi Group's core product: cut, machined and drilled in our own works in India from DN 10 up to 8000 NB (8 metres), in carbon, boiler-quality, stainless, duplex and nickel-alloy plate, with EN 10204 3.1 certificates.
Key to dimensions
- D
- Outside diameter of flange
- B
- Bore (inside diameter) of plate flange
- C
- Flange thickness — plate or blind, raised face (RF) or flat face (FF)
AWWA C207 Ring (Plate) Flange & Blind Flange Dimensions — tables
AWWA C207 Class B — ring (plate) and blind flange (mm)
| SizeNB | DFlange OD · mm | BBore · mm | CPlate, RF · mm | CBlind, RF · mm |
|---|---|---|---|---|
| 100 | 228.6 | 116.1 | 15.9 | 15.9 |
| 125 | 254 | 143.8 | 15.9 | 15.9 |
| 150 | 279.4 | 170.7 | 17.5 | 17.5 |
| 200 | 342.9 | 221.5 | 17.5 | 17.5 |
| 250 | 406.4 | 276.4 | 17.5 | 17.5 |
| 300 | 482.6 | 327.2 | 17.5 | 18.3 |
| 350 | 533.4 | 360.4 | 17.5 | 20.1 |
| 400 | 596.9 | 411.2 | 17.5 | 22.7 |
| 450 | 635 | 462 | 17.5 | 24.1 |
| 500 | 698.5 | 512.8 | 17.5 | 26.4 |
| 550 | 749.3 | 563.6 | 19 | 28.8 |
| 600 | 812.8 | 614.4 | 19 | 30.9 |
| 650 | 870 | 665.2 | 20.6 | 33.2 |
| 700 | 927.1 | 716 | 22.2 | 35.5 |
| 750 | 984.3 | 766.8 | 22.2 | 37.5 |
| 800 | 1060.5 | 817.6 | 23.8 | 40.2 |
| 850 | 1111.3 | 868.4 | 23.8 | 42.2 |
| 900 | 1168.4 | 919.2 | 25.4 | 44.5 |
| 950 | 1238.3 | 970 | 25.4 | 47.1 |
| 1000 | 1289.1 | 1020.8 | 25.4 | 49.1 |
| 1050 | 1346.2 | 1071.6 | 28.6 | 51.4 |
| 1100 | 1403.4 | 1122.4 | 28.6 | 53.7 |
| 1150 | 1454.1 | 1173.2 | 28.6 | 55.7 |
| 1200 | 1511.3 | 1224 | 31.8 | 58 |
| 1250 | 1568.4 | 1274.8 | 31.8 | 60.4 |
| 1300 | 1625.6 | 1325.6 | 31.8 | 62.7 |
| 1350 | 1682.8 | 1376.4 | 34.9 | 65 |
| 1500 | 1854.2 | 1528.8 | 38.1 | 71.6 |
| 1650 | 2032 | 1681.2 | 41.3 | 78.5 |
| 1800 | 2197.1 | 1833.6 | 44.4 | 85.2 |
| 1950 | 2362.2 | 1986 | 50.8 | 50.8 |
| 2100 | 2533.6 | 2138.4 | 50.8 | 50.8 |
| 2250 | 2705.1 | 2290.8 | 57.2 | 57.2 |
| 2400 | 2876.5 | 2443.2 | 57.2 | 57.2 |
| 2550 | 3048 | 2595.6 | 63.5 | 63.5 |
| 2700 | 3219.5 | 2748 | 63.5 | 63.5 |
| 2850 | 3390.9 | 2900.4 | 69.9 | 69.9 |
| 3000 | 3562.4 | 3052.8 | 69.9 | 69.9 |
| 3150 | 3733.8 | 3205.2 | 76.2 | 76.2 |
| 3300 | 3905.3 | 3357.6 | 76.2 | 76.2 |
| 3600 | 4248.2 | 3662.4 | 82.6 | 82.6 |
AWWA C207 Class D — ring (plate) and blind flange (mm)
| SizeNB | DFlange OD · mm | BBore · mm | CPlate, RF · mm | CBlind, RF · mm |
|---|---|---|---|---|
| 100 | 228.6 | 116.1 | 15.9 | 15.9 |
| 125 | 254 | 143.8 | 15.9 | 16.5 |
| 150 | 279.4 | 170.7 | 17.5 | 17.6 |
| 200 | 342.9 | 221.5 | 17.5 | 20.6 |
| 250 | 406.4 | 276.4 | 17.5 | 24.2 |
| 300 | 482.6 | 327.2 | 20.6 | 28.4 |
| 350 | 533.4 | 360.4 | 23.8 | 28.8 |
| 400 | 596.9 | 411.2 | 25.4 | 32.1 |
| 450 | 635 | 462 | 27 | 33.8 |
| 500 | 698.5 | 512.8 | 28.6 | 36.8 |
| 550 | 749.3 | 563.6 | 30.2 | 39.8 |
| 600 | 812.8 | 614.4 | 31.8 | 42.2 |
| 650 | 870 | 665.2 | 33.3 | 45.4 |
| 700 | 927.1 | 716 | 33.3 | 48.4 |
| 750 | 984.3 | 766.8 | 34.9 | 51 |
| 800 | 1060.5 | 817.6 | 38.1 | 54.6 |
| 850 | 1111.3 | 868.4 | 38.1 | 57.2 |
| 900 | 1168.4 | 919.2 | 41.3 | 60.2 |
| 950 | 1238.3 | 970 | 41.3 | 63.7 |
| 1000 | 1289.1 | 1020.8 | 41.3 | 66.3 |
| 1050 | 1346.2 | 1071.6 | 44.4 | 69.3 |
| 1100 | 1403.4 | 1122.4 | 44.4 | 72.4 |
| 1150 | 1454.1 | 1173.2 | 44.4 | 75 |
| 1200 | 1511.3 | 1224 | 47.6 | 78 |
| 1250 | 1568.4 | 1274.8 | 50.8 | 81.2 |
| 1300 | 1625.6 | 1325.6 | 50.8 | 84.2 |
| 1350 | 1682.8 | 1376.4 | 54 | 87.2 |
| 1500 | 1854.2 | 1528.8 | 57.2 | 96 |
| 1650 | 2032 | 1681.2 | 63.5 | 105.1 |
| 1800 | 2197.1 | 1833.6 | 66.7 | 113.8 |
| 1950 | 2362.2 | 1986 | 69.9 | 69.9 |
| 2100 | 2533.6 | 2138.4 | 73 | 73 |
| 2250 | 2705.1 | 2290.8 | 76.2 | 76.2 |
| 2400 | 2876.5 | 2443.2 | 82.6 | 82.6 |
| 2550 | 3048 | 2595.6 | 82.6 | 82.6 |
| 2700 | 3219.5 | 2748 | 85.7 | 85.7 |
| 2850 | 3390.9 | 2900.4 | 88.9 | 88.9 |
| 3000 | 3562.4 | 3052.8 | 88.9 | 88.9 |
| 3150 | 3733.8 | 3205.2 | 95.3 | 95.3 |
| 3300 | 3905.3 | 3357.6 | 98.4 | 98.4 |
| 3600 | 4248.2 | 3662.4 | 104.8 | 104.8 |
AWWA C207 Class E — ring (plate) and blind flange (mm)
| SizeNB | DFlange OD · mm | BBore · mm | CPlate, RF · mm | CBlind, RF · mm |
|---|---|---|---|---|
| 100 | 228.6 | 116.1 | 28.6 | 28.6 |
| 125 | 254 | 143.8 | 30.2 | 30.2 |
| 150 | 279.4 | 170.7 | 33.4 | 33.4 |
| 200 | 342.9 | 221.5 | 38.1 | 38.1 |
| 250 | 406.4 | 276.4 | 39.7 | 39.7 |
| 300 | 482.6 | 327.2 | 44.4 | 44.4 |
| 350 | 533.4 | 360.4 | 47.6 | 47.6 |
| 400 | 596.9 | 411.2 | 50.8 | 50.8 |
| 450 | 635 | 462 | 54 | 54 |
| 500 | 698.5 | 512.8 | 60.3 | 60.3 |
| 550 | 749.3 | 563.6 | 63.5 | 63.5 |
| 600 | 812.8 | 614.4 | 66.7 | 66.7 |
| 650 | 870 | 665.2 | 69.9 | 69.9 |
| 700 | 927.1 | 716 | 69.9 | 69.9 |
| 750 | 984.3 | 766.8 | 73 | 73 |
| 800 | 1060.5 | 817.6 | 76.2 | 76.2 |
| 850 | 1111.3 | 868.4 | 76.2 | 77.5 |
| 900 | 1168.4 | 919.2 | 79.4 | 81.5 |
| 950 | 1238.3 | 970 | 79.4 | 86.2 |
| 1000 | 1289.1 | 1020.8 | 82.6 | 89.7 |
| 1050 | 1346.2 | 1071.6 | 85.7 | 93.9 |
| 1100 | 1403.4 | 1122.4 | 85.7 | 98 |
| 1150 | 1454.1 | 1173.2 | 87.3 | 101.5 |
| 1200 | 1511.3 | 1224 | 88.9 | 105.6 |
| 1250 | 1568.4 | 1274.8 | 88.9 | 109.9 |
| 1300 | 1625.6 | 1325.6 | 92.1 | 114 |
| 1350 | 1682.8 | 1376.4 | 95.3 | 118.1 |
| 1500 | 1854.2 | 1528.8 | 98.4 | 129.9 |
| 1650 | 2032 | 1681.2 | 108 | 142.3 |
| 1800 | 2197.1 | 1833.6 | 111.1 | 154.1 |
| 1950 | 2362.2 | 1986 | 120.7 | 120.7 |
| 2100 | 2533.6 | 2138.4 | 120.7 | 120.7 |
| 2250 | 2705.1 | 2290.8 | 130.2 | 130.2 |
| 2400 | 2876.5 | 2443.2 | 130.2 | 130.2 |
| 2550 | 3048 | 2595.6 | 139.7 | 139.7 |
| 2700 | 3219.5 | 2748 | 139.7 | 139.7 |
| 2850 | 3390.9 | 2900.4 | 149.2 | 149.2 |
| 3000 | 3562.4 | 3052.8 | 149.2 | 149.2 |
| 3150 | 3733.8 | 3205.2 | 158.8 | 158.8 |
| 3300 | 3905.3 | 3357.6 | 158.8 | 158.8 |
| 3600 | 4248.2 | 3662.4 | 171.5 | 171.5 |
AWWA C207 Class F — ring (plate) and blind flange (mm)
| SizeNB | DFlange OD · mm | BBore · mm | CPlate, RF · mm | CBlind, RF · mm |
|---|---|---|---|---|
| 100 | 254 | 116.1 | 28.7 | 28.7 |
| 125 | 279.4 | 143.8 | 30.7 | 30.7 |
| 150 | 317.5 | 170.9 | 33.3 | 33.3 |
| 200 | 381 | 221.7 | 33.3 | 33.3 |
| 250 | 444.5 | 276.4 | 38.1 | 38.1 |
| 300 | 520.7 | 327.2 | 41.4 | 41.4 |
| 350 | 584.2 | 360.4 | 49.3 | 49.3 |
| 400 | 647.7 | 411.2 | 54.4 | 54.4 |
| 450 | 711.2 | 462 | 57.2 | 57.2 |
| 500 | 774.7 | 512.8 | 59.2 | 59.2 |
| 550 | 838.2 | 563.6 | 63.5 | 63.5 |
| 600 | 914.4 | 614.4 | 68.3 | 68.3 |
| 650 | 971.6 | 665.2 | 76.2 | 76.2 |
| 700 | 1035.1 | 716 | 79.5 | 79.5 |
| 750 | 1092.2 | 766.8 | 80 | 80.4 |
| 800 | 1149.4 | 817.6 | 82.6 | 84.6 |
| 850 | 1206.5 | 868.4 | 85.9 | 88.3 |
| 900 | 1270 | 919.2 | 87.9 | 93.2 |
| 950 | 1327.1 | 970 | 88.9 | 96.9 |
| 1000 | 1377.9 | 1020.8 | 92.2 | 101.1 |
| 1050 | 1447.8 | 1071.6 | 96.8 | 105.9 |
| 1100 | 1504.9 | 1122.4 | 101.6 | 110.2 |
| 1150 | 1562.1 | 1173.2 | 104.9 | 114.4 |
| 1200 | 1651 | 1224 | 114.3 | 121.4 |
Notes
- All dimensions are in millimetres; sizes are nominal bore (NB / DN).
- Plate flange thickness is given for raised-face (RF) and flat-face (FF) flanges; where only RF is shown, the FF thickness is the same.
- Reference values for estimation and checking. Verify against the current edition of the standard and the purchase specification before design, purchase or fabrication.
Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.
FAQ
AWWA C207 Ring (Plate) Flange & Blind Flange dimensions: common questions
What is an AWWA C207 ring flange?
A hubless steel flange cut from plate for water-works pipe, drilled to match ASME B16.1 / B16.5 Class 125/150 in the shared sizes.
What is the largest AWWA C207 flange?
The tables go to 144 inches (about 3.6 m bore). Teshi Group makes larger ring flanges to drawing up to 8000 NB.
Related products, data sheets and standards
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View online · PDF
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