Ballow valves for sewage for mechanical equipment that prevents the sewage from retreating after the pumping. In other words, they protect against the return of the pumped liquid back to the tank. In the case of domestic and economic sewage, containing solid and fibrous fractions, valves equipped with a heavy ball covered with a layer of rubber (EPDM) are best suited.
Principle
During pumping, the water pressure (sewage) lifts the ball from the nest and directs it to the side corridor in the valve, causing the main direction of flow. The flowing liquid turns the ball freely and all factions can flow around, nothing is grinding, not wrapped and does not hang in the flow channel. After stopping the pump, the anti -leave found in the discharge pipeline pushes the ball back to the nest and thus closes the canal of free flow. Thanks to this, the ball check valves guarantee a one -way sewage flow through pipelines and fittings in the pumping station.
Advantages of ball check valves
- Prevention of feedback - saving time and energy
- Cycles are automatically held without service interference or other devices with e.g. electric or pneumatic drive.
- Very long life of the ball
- High resistance to clogging and wrapping permanent and fibrous fractions
- Easy maintenance - cleaning or replacement of the ball - inspection chamber
Types of ball check valves
The most popular methods of mounting valves on the discharge pipelines are:
- BSPT inch tubular threads (British Standard Pipe Threaded)
- Connecting collars (Flanes)
- Barefoot tips for sliding or pasteing