FREE-VALVE Pneumatic dome valves are currently the most effective material flow control valve, capable of rapid opening and closing. It adopts the internationally advanced pneumatic-seal structure, with no contact between the valve disc and the inflatable sealing seat during operation. Specifically designed for pneumatic conveying systems, it ensures sealing for powdery materials and can also serve as an independent bulk material shut-off valve.The dome valve is widely used in the powder material conveying processes of multiple industries, including:Power industry ,Chemical industry,Metallurgical industry,Pharmaceutical industry,Food ,etc.
During operation, the dome valve provides a full-bore and unrestricted flow of material, which does not impact on the dome and prolong the service life,so the capability of transporting dry ash is greatly increased.
The valve is “self-cleaning”，The inflatable-seal is only inflated when the valve is fully closed. This avoids shearing or jamming of particles between the seal and dome, and hence increases system reliability.
Product with customized structural length and connection size is available.
The photos shows that FREE VALVE brand pneumatic dome valves are installed some coal power plant at Vietnam
