ANSI pvc ball check valve,pvc double union ball valve 1)size:1/2"-4" ANSI 2)economical, quarter-turn shut off designed 1.Description1)Material U-PVC2)Application water supply,water draining,farming,irrigation,aquiculture,and water treatement and other fields3)Size 1/2”-4”(Standard: ANSI)4)Color grey/china-white/white5) Temperature resistance water temperature from -5° to 45°6)Warranty long ...