The cast steel lined PTFE worm gear double flange butterfly valve is a valve body made of carbon steel WCB material. The internal passage is lined with anti-corrosion materials such as PFA, PTFE, FEP, etc. The worm gear manual actuator can make valve opening and closing more convenient, fast, and labor-saving. The double flange is connected to the pipe flange for effective connection, and the anti-corrosion medium leaks out. It is a type of corrosion-resistant and acid alkali resistant valve.
