Features:
1.Two-port collaborative automatic exhaust
The main and auxiliary exhaust ports are designed. The main exhaust port is used to quickly discharge a large amount of free air filled with water or accumulated in the pipeline; The auxiliary exhaust port is used to continuously discharge the slowly separated trace gas during the stable operation of the system, and the exhaust process is efficient and automatic.
2.Automatic air supplement for negative pressure prevention
When the pressure in the pipeline drops to form negative pressure, the main exhaust port will be quickly opened to suck in the external air, effectively avoiding the pipeline from being sucked or generating water hammer, and ensuring the safety of the system structure.
3.Simple structure and reliable operation
The mechanical structure combining lever and float ball (or displacer) is generally adopted inside, with direct action principle, solid and durable parts, relatively loose requirements for water quality and stable and reliable operation.
4.Good adaptability under wide working conditions
The valve body can be made of nodular cast iron (lined with anticorrosive coating) or stainless steel. NBR or EPDM rubber can be selected for the sealing elements according to the medium temperature, which can adapt to various media such as clean water, cooling water and slightly treated sewage.
5.Easy installation and maintenanceThe overall structure is compact, and most interfaces are standard flanges or threads. The upper cover is usually removable, convenient for daily inspection, internal cleaning and replacement of wearing parts, with low maintenance cost.