Manual stainless steel flange butterfly valve is a commonly used fluid control device, which consists of a valve body, valve disc, valve stem, and manual operating device. This valve is usually made of stainless steel material and has characteristics of corrosion resistance, high temperature resistance, and pressure resistance.

The characteristics of manual stainless steel flange butterfly valves are simple structure, light weight, convenient installation, simple operation, and good sealing performance. It can quickly switch and adjust the flow rate of fluid media, and is widely used in industrial pipeline systems, such as chemical, petroleum, natural gas, water treatment and other fields.

The operating device of manual stainless steel flange butterfly valves usually adopts the form of handwheels, handles, or manual gears, and the valve disc can be opened and closed by manually rotating the operating device. According to different work requirements, the valve disc can adopt a hard sealing or soft sealing structure to ensure the sealing performance of the valve.