Q41F flanged stainless steel ball valve can be closed tightly by simply 90-degree rotation operation and a small angular moment. The complete equal body cavity provide the media with a small resistance, straight flow channel. It is generally considered the ball valve is most suitable for opening and closing directly, but it has been designed to throttle and control flow recently. The main features of ball valve are its own compact structure, easy operation and maintenance, applicable for water, solvents, acids ,natural gas and other general work media, it also applies to the media in poor working condition, such as oxygen, hydrogen peroxide, methane and ethylene. The body of ball valve can be one piece, it can also be combined type. This type of valve should generally be installed horizontally in the pipeline.