A handle-actuated soft-sealed flanged butterfly valve is a valve that operates by rotating the valve stem through a handle, achieving a 90° angle stroke of the valve plate. It features a compact structure and easy operation, making it particularly suitable for applications requiring rapid response and manual control.

Structural Features

The Soft Sealed Handle Butterfly Valve is mainly composed of the valve body, disk, valve stem, and handle. Its sealing parts feature a soft sealing design, commonly using rubber or plastic materials, suitable for a wide temperature range of media. This design ensures the valve has a low friction coefficient during the opening and closing process, minimal wear, and a long operational lifespan.

Application Scenarios

The soft-sealed handwheel butterfly valve is widely used in industries such as water supply and drainage, metallurgy, energy systems, and light纺 industries. Due to its simple operation and compact structure, it is particularly suitable for installation in narrow spaces, such as ship cabins and building interlayer pipelines. Additionally, this valve is suitable for low-pressure, normal temperature pipeline networks, with working pressures mostly of PN10/PN16 and a temperature range of -40~200℃.

Operation Method

The handle soft-sealed flanged butterfly valve is directly driven by the handle to rotate the valve stem, achieving a 90° angular stroke for on/off, with an operating time typically less than 15 seconds, offering convenient operation without the need for energy support. Its design conforms to ergonomics, reducing the operating force by 30% compared to traditional manual valves. Additionally, some products are equipped with a scale disk or a stop boss, facilitating the judgment of valve status and preventing misoperation.