Top Entry Eccentric Semi-ball Valve

The most distinctive feature of the Top Entry Eccentric Semi-ball Valve manufactured by our Dafugui factory is its eccentric design: the center axis of the valve core is offset from the center axis of the semi-ball, and the sealing element is mounted only on one side of the valve body. Only when the valve is closed does the semi-ball make close contact with the valve seat.

This design minimizes friction and wear between the semi-ball and the valve seat during rotation.

Our ball valves typically use bimetallic materials for both the valve core and the valve seat, which provides excellent wear and corrosion resistance.

Application

Tap Water

This Top Entry Eccentric Semi-ball Valve reliably controls water flow at every stage of the process, from water intake at the reservoir to purification at the treatment plant and delivery to the city's pipeline network. Its excellent sealing ensures leak-proof water delivery throughout the entire process, and its wear-resistant properties ensure the valve maintains precise flow control over extended periods.

Wastewater Treatment

This top-entry eccentric semi-ball valve can handle everything from the coarse filtration stage at the water inlet to critical process steps like aeration tanks and sedimentation tanks. Wastewater often contains various suspended matter and impurities. Traditional valves are easily blocked or worn. However, our valves, with their unique shearing effect, can automatically scrape off impurities on the sealing surface during the opening and closing process.

Industrial Circulating Water

This Top Entry Eccentric Semi-ball Valve also performs well in cooling units in chemical plants, circulating water pipelines in power plants, and process water systems in various manufacturing industries. It can withstand certain temperature changes, has strong corrosion resistance, and can maintain a long life in water media containing chemical substances. More importantly, the valve is easy to operate and workers do not need to exert too much effort during daily adjustments.