... ball valve 1.instrument ball valve2.small resistence to the fluid 3.adapts to all kind of connective pipe systemsMaterial : 20#,1Cr18Ni9Ti ... ,304,316,316LType : 2 way, 3 way, 4 way ,5 wayWorking pressure ... :100 PSI to 6000 PSISizes : 1/4" to 2" screwed BSP/NPTJIangsu, China.Cone Thread ...