We are offering Ball Valve - One Piece. One piece ball valve features benefits -low operating torque. -testing as per en iso 12266-1. -blowout proof stem design & antistatic device. -face to face dimensions as per mfr standard. -screwed to bsp as per bs 21ansiasme b 1.20.1 npt socket welds to ansi b 16.11 butt weld ends as per ansi b 16.25 application isolation size 15mm (12") to 450mm (18") ansi class rating class 150, 300, 600, 900, 1500 on request -locking arrangement. -nace as per mr-01-75 mr0103. design standard en iso 17292 bs 5351.