172H-10311S | Siemens | Control Valves & Actuators

This 599 Series 2-way ball valve with a 2-position 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 3/4-inch valve is 25 Cv, full port, with stainless steel ball and stem, and an operating handle that can manually operate the valve in the event of power failure.