... BS, ANSI, DIN, JIS size: 1/2''-4'' structure:ball application:argricultural irrigation and so on ... Brandzoornamepvc ball valvematerialpvc or pprsize1/2"-4"standardANSI,JIS, BS, DINapplication Swimming pool, wastewater treatment ... quickly, lightweight.3)The fluid resistance is small.4)No vibration, and no noise.5)Each valve ... the factory, Lowest leakage rate 1/2"-4" pvc ball valve