Siemens 599-10325S 2-WAY 1-1/2", 100 CV BALL VALVE, SS BALL & STEM, 200 PSI CLOSE-OFF, NPTSiemens 599 10325S 2 way 1 1 2", 100 Cv ball valve, SS ball stem, 200 psi close off, NPT This 599 Series 2 way ball valve is used to control hot or chilled water and up to 50% Glycol solution in convectors, fan coil units, unit conditioners, radiation and reheat coils. This 1 1 2 inch valve is 100 Cv, equal percentage flow characteristic, with stainless steel ball and stem, and an operating handle that can manually operate the valve in the event of