guillotine valve with Pneumatic Drive for easy operating 2''~20'' PN6/PN10/PN16/PN25/150lb ... )Connecting flange:ANSI B16.5, GB/T9113, JB/T79, HG, SH, JIS, DIN, NF,BSMain materials:WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12M02Ti, CF8, CF8M ... :grade A(Zero Leakage)Accessories:Flange Operation:hand wheel,sprocket drive,gear,pneumatic,electric,hydraulic,electric/hydraulic,handwheel/pneumatic switchover Our ...