Siemens 171C-10600-1.9-1.9 6W BALL VALVE 1/2", A=1.9CV, B=1.9CV, 58PSI CLOSE-OFF, FEMALE NPT, 0-10 V NSR

This 1/2 inch 599 Series 6-way ball valve with a 0-10 Vdc control fail-in-place actuator assembly is used to control hot or chilled water and up to 50% Glycol solution in chilled/heated beams and other four pipe systems using a single valve and actuator. 58 psi close-off with 0% leakage. Source A = 1.9 Cv and Source B = 1.9 Cv, linear flow characteristic and chrome-plated brass ball and stainless steel stem and Cv washers. There is a handle for manual operation of the valve in the event of power failure.