Siemens 599-10322 2W 1-1/2", 25 CV BALL VALVE, CHROME-PLATED BRASS BALL AND BRASS STEMSiemens 599 10322 2W 1 1 2", 25 Cv ball valve, chrome plated brass ball and brass stem 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 25 Cv, equal percentage flow characteristic, with chrome plated brass ball and brass stem, and an operating handle that can manually operate the valve in the