... 3. We often take Large-scale exhibition Pneumatic flange floating ball valveModel : ZTQ641F (N, P, H, Y )Bore: DN15- ... , 20KStructure: floatingDimension standard: GB, ANSI, JISBody material: Carbon steel(WCB), Stainless steel(CF8, CF8M, CF3, CF3M)Seat material: PTFE, PPL, ... N, H,YMode of action: the double-acting, single-acting (spring reposition ...