In this article, Bundor Valve introduces the size table of the wafer butterfly valve. The models of the wafer butterfly valve conforming to this table are:
Handle wafer butterfly valve
Worm gear wafer butterfly valve
Pneumatic wafer butterfly valve
Electric wafer butterfly valve
PTFE wafer butterfly valve
PTFE handle wafer butterfly valve
Handle hard seal butterfly valve
Worm gear hard seal butterfly valve
Wafer butterfly valve size table
| Size | L | |
| DN | NPS | |
| 50 | 2" | 43 |
| 65 | 2 1/2" | 46 |
| 80 | 3" | 46 |
| 100 | 4" | 52 |
| 125 | 5" | 56 |
| 150 | 6" | 56 |
| 200 | 8" | 60 |
| 250 | 10" | 68 |
| 300 | 12" | 78 |
The wafer butterfly valve mainly completes the operation of opening or closing the valve by rotating the disc-shaped butterfly plate in the valve body around the central axis, and the rotation angle is between 0-90°.
When the rotation angle is 0°, the butterfly plate is parallel to the valve body. At this time, the valve is in a fully closed state and stops flowing; when the rotation angle is between 0° and 90°, the butterfly plate and the valve body produce a certain angle. At this time, the valve is in a semi-open and closed state, which can adjust the flow of the medium in the pipeline;
When the rotation angle reaches 90°, the butterfly plate is perpendicular to the valve body, the valve is fully open, and the valve flow reaches the maximum value.
