Difference between "Hard back seat" and "Soft back seat" butterfly valve Sep 14, 2022 Industry news 232 Views Share: PREVIOUS:The difference between the ''Cartridge Sea'' and ''Booted Sea'' of Butterfly Valve NEXT:Working principle and characteristics of flanged three-way ball valve Related What is the top entry ball valve?The working principle of the plug valve and the main classification of the plug How to choose the electric valve correctly? Master these six points!What are the consequences of a wrong trap selection?Feasibility of replacing gate valve and globe valve with double eccentric hemisp