Alloy 20 Wafer Butterfly Valve
Body Material: Alloy 20
Disc: Alloy 20
Stem: Alloy 20
Gland: Alloy 20
Cover: Alloy 20
Seat: Alloy 20, Graphite
Packing: PTFE
Pin: SS316
Bearing: SS316+PTFE
Nominal Size: 2" to 12"
Nominal Pressure: Class 150 to Class 300
Design and Manufacturing: API609
Face to Face Dimensions: API609
Flange Dimensions: ASME B16.5
Testing: API598
Dimensions
| DN | A | B | C | E | L | H | a | D1 | D2 | D3 | D4 | N-D5 | D6 | D7 | D8 | D9 | D10 | |
| mm | inch | |||||||||||||||||
| 50 | 2″ | 280 | 161 | 42.04 | 52.9 | 32 | 9.52 | 45° | 83 | 11 | 52.6 | 120 | 4-23 | 70 | 10 | 102 | 100 | 12.6 |
| 65 | 21/2″ | 303 | 175 | 44.68 | 64.5 | 32 | 9.52 | 45° | 83 | 11 | 64.3 | 136.13 | 4-26.6 | 70 | 10 | 102 | 120 | 12。6 |
| 80 | 3″ | 315 | 181 | 45.21 | 78.8 | 32 | 9.52 | 45°/22.5° | 83 | 11 | 78.8 | 152.4/160.0 | 4-24/4-18 | 70 | 10 | 102 | 127 | 12.6 |
| 100 | 4″ | 353 | 200 | 52.07 | 104 | 32 | 11.11 | 45°/22.5° | 83 | 11 | 104 | 177.8/185.16 | 4.17.5/4-25.8 | 70 | 10 | 102 | 156 | 15.77 |
| 125 | 5″ | 379 | 213 | 54.36 | 123.3 | 32 | 12.7 | 22.5° | 83 | 11 | 123.3 | 215.01 | 4-23 | 70 | 10 | 102 | 190 | 18.92 |
| 150 | 6″ | 404 | 226 | 55.75 | 155.6 | 32 | 12.7 | 22.5° | 83 | 11 | 155.7 | 238.12 | 4-25 | 70 | 10 | 102 | 212 | 18.92 |
| 200 | 8″ | 487 | 260 | 60.58 | 202.5 | 45 | 15.87 | 15°/22.5° | 127 | 14 | 202.4 | 296.07 | 4-23/4-26 | 102 | 12 | 152 | 268 | 22.1 |
| 250 | 10″ | 547 | 292 | 65.63 | 250.5 | 51 | - | 22.5°/15° | 127 | 14 | 250.4 | 357 | 4-22/4-29 | 102 | 12 | 152 | 325 | 28.45 |
| 300 | 12″ | 631 | 337 | 76.9 | 301.6 | 51 | - | 15° | 127 | 14 | 301.5 | 406.4/431.8 | 4-30.2/4-25.4 | 102 | 12 | 152 | 403 | 28.45 |
