... ABS Structure:butterfly valve Cast iron rubber lined wafer type butterfly valvesize: 2''-48'';pressure: 150lb;4. self ... cleaning function Cast iron rubber lined wafer type butterfly valve feature: Design standard: API609 , BS5155 , ... , PTFE , NBR , VITONShaft: Carbon Steel , Stainless SteelCoating: Epoxy Resin Or Other Available On Request Operators---Manual, Electric, Pneumatic actuator ...