Standard: 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, aquaculture, agriculture, irrigation, industrial applications, etc. to the drainage systemoperation1)Easy to install, easy to operate2)Applicable to the regular ...