What Are The Applicable Occasions For Flanged Ball Valve?

Flanged Ball Valve features an eccentric metal seal structure, offering metal-to-metal sealing, interchangeable metal-to-metal sealing, and stainless steel plate and graphite composite plate sealing. In addition to electric operation, hard-seal butterfly valves can be driven manually, by worm gear, or pneumatically. These valves are typically installed horizontally.

The butterfly disc of a hard-seal ball valve is installed diametrically along the pipe. Within the cylindrical passage of the hard-seal ball valve body, the disc-shaped disc rotates around its axis within an angle ranging from 0° to 90°. At 90°, the valve is fully open. Features of new high-life stainless steel butterfly valves and problems encountered during use. Currently, hard-seal ball valves and hard-seal butterfly valves are widely used in many fields, including petroleum, chemical, metallurgy, and hydropower, as components for on-off and flow control in pipeline systems. Conventional butterfly valve technology typically employs a hermetic seal structure, using materials such as rubber and polytetrafluoroethylene. Due to structural limitations, these valves are not suitable for applications requiring high-temperature, high-pressure, corrosion-resistant, or wear-resistant performance.

A relatively advanced butterfly valve is the triple-eccentric metal hard-seal butterfly valve. The valve body and valve seat are integrated components, and the valve seat sealing surface is welded with a heat-resistant and corrosion-resistant alloy material.