172J-10301 | 2W 1/2", 0.63Cv ball valve assy, chrm-plat brass ball & brass stem, float NC SR | Siemens

This 599 Series 2-way ball valve with a floating control, normally closed, fail safe actuator assembly, providing 200 psi close-off, 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 1/2-inch valve is 0.63 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 event of power failure.