... Profile: Tianjin Tanggu Tianshun Valve Co., Ltd., have manufactured butterfly valves for over 17 years. We produce many types valves ... Lug, U type, D341(centerline double flanged butterfly valve), D343(double eccentric flanged butterfly valve), Grooved end type, Double disc wafer check valve, Resilient flapper ... interest, pls don’t hesitate to let me know. Double Flange centerline butterfly valve