Wafer double door check valve (Split clapper) is a kind of check valve (non-return valve), and it must be sandwiched between two flanges for installation. It is used to allow water to flow through it in only one direction, and the clappers open to permit forward flow or close to block reverse flow.
Available size
| Size | L (mm) | Working pressure (psi) | Ref. No. |
|---|---|---|---|
| 2″ / DN50 / 60.3mm | 54 | 300 | V4901 |
| 2-1/2″ / DN65 / 73.0mm | 60 | 300 | V4902 |
| 3″ / DN80 / 88.9mm | 57 | 300 | V4903 |
| 4″ / DN100 / 114.3mm | 67 | 300 | V4904 |
| 5″ / DN125 / 141.3mm | 83 | 300 | V4905 |
| 6″ / DN150 / 168.3mm | 95 | 300 | V4906 |
| 8″ / DN200 / 219.1mm | 127 | 300 | V4907 |
| 10″ / DN250 / 273.0mm | 140 | 300 | V4908 |
| 12″ / DN300 / 323.8mm | 181 | 300 | V4909 |
| 14″ / DN350 / 355.6mm | 184 | 300 | V4910 |
| 16″ / DN400 / 406.4mm | 191 | 300 | V4911 |
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