Double Orifice Air release valve
Double Port Air Release Valve
Size: DN50-DN200;
Flange and drilling acc to BS EN 1092-2 PN10/PN16.
| Working Pressure | PN10 / PN16 |
| Testing Pressure | Shell: 1.5 times rated pressure, |
| Seat: 1.1 times rated pressure. | |
| Working Temperature | -10°C to 80°C (NBR) |
| Suitable Media | Water. |
Air Displacement (As the speed of flow 1.5-3.0m/s) :
| Size | DN50 | DN75 | DN100 | DN150 | DN200 |
| Air displacement(m3/h) | 6.5-13 | 6.5-13 | 10-20 | 19-38 | 31-62 |
Charatoristics:
1. This valve can release the air to reduce the resistance in the pipeline.
2. It can suction air automatically and quickly to prevent the pipe fracture when there is negative pressure in pipe.
3. The material of floating ball is stainless steel to make sure the long service life.
| No. | Part | Material |
| 1 | Body | Cast Iron GG25 |
| 2 | Bonnet | Cast Iron GG25 |
| 3 | Stem | Stainless steel 416 |
| 4 | Gland | |
| 5 | Seal | NBR |
| 6 | Ball | Stainless steel 304 |
| Size(mm) | D | D1 | D2 | L | H | z-Φd |
| DN50 | 160 | 125 | 100 | 325 | 325 | 4-14 |
| DN80 | 195 | 160 | 135 | 350 | 325 | 4-14 |
| DN100 | 21 | 180 | 155 | 385 | 360 | 4-18 |
| DN125 | 245 | 210 | 185 | 480 | 475 | 8-18 |
| DN150 | 280 | 240 | 210 | 480 | 475 | 8-18 |
| DN200 | 335 | 295 | 265 | 620 | 580 | 8-18 |
If need the drawing details, please feel free to contact us.
This air release valve is used for industry water pipeline as the device of releasing gas to improve the efficiency of water deliverying and avoid the transformation & fracture of pipes. It is the necessary equipment of pipelines.
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