Electric actuator butterfly valve DN50-1200 or 2-48'' PN10 ... Profile: We, Tianjin Tanggu Tianshun Valve Co., Ltd., have manufactured butterfly valves for more than 10 years. ... double flanged butterfly valve), D343(double eccentric flanged butterfly valve), Grooved end type, Double disc wafer check valve, Flapper check valve, Eccentric plug valve, Half- ... to let me know. Electric actuator butterfly valve