Q41f-10s flange plastic ball valve has structural characteristics in its application range: it is suitable for intercepting the flow in the transportation process with corrosive media, and the temperature is -14 ℃ ~ 100 ℃ and -40 ℃ ~ 140 ℃ according to different materials. All parts are assembled with RPP or PVDF injection molded parts, with excellent corrosion resistance. The sealing ring adopts F4. Excellent corrosion resistance and long service life. Flexible rotation and convenient use. The integral ball valve has few leakage points and high strength, and the connected ball valve is easy to assemble and disassemble. Installation and use of ball valve: when connecting the flanges at both ends with the pipeline, tighten the bolts evenly to prevent leakage caused by flange deformation. Turn the handle clockwise to close, and vice versa to open. It can only be used for cut-off and flow passage, and there should be no flow regulation. Liquid containing hard particles is easy to scratch the surface of the ball.