... : BS,ANSI,DIN,JIS 3) material: PVC,ABS,PP-R 4) with socket and threaded end Brandzoornamepvc ball valvematerialpvc or pprsize1 ... /2"-4"standardANSI,JIS, BS, DINapplication Swimming pool, wastewater treatment, aquaculture, ... close quickly, lightweight.3)The fluid resistance is small.4)No vibration, and no noise.5)Each valve is ...