Flanged aeration plunger DN 25 - 300

Flanged aeration plunger is an effective means for automatic air removal from the pipeline system. It prevents the formation of air plugs that can reduce the system's performance and cause water hammer. It is installed on water mains using a standard flange connection.

Flanged aeration plunger DN 25 - 300; PN16

Plunger aeration flange DN100

The general arrangement of the VVF plungers is shown in fig. 1. The air valve consists of a cast-iron body 1, which has a trapping chamber in the lower part, in which a hollow ball 6 is installed, designed to prevent the system from locking to let air into the system. A lower cast-iron cover 2 is installed on the body 1, which is pressed against the seat on the body with a gasket 3. A sealing ring 5 is installed on the cover 2, which prevents water from flowing out of the system when air is released. The upper cover 4 is installed on the lower cover 2 through the washers, which prevents foreign objects from entering the body of the plunger.

The principle of operation of the plunger is based on the principle of a valve to release air from the system and lock the outlet for water to escape. The plunger also works in the opposite direction, not allowing a vacuum to form in the system.

The plunger is tested for tightness and strength at a pressure of Ppr\u003e 1.5РN.