171C-10307S | 2W 1/2", 10Cv ball valve assy, stainless steel ball and stem, 0-10V NSR | Siemens

This 599 Series 2-way ball valve with a 0-10 Vdc control fail-in-place 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 10 Cv, full-port valve without flow characterizer insert, with stainless steel ball and stem, and an operating handle that can manually operate the valve in the event of power failure.