Siemens 171A-10305 2W 1/2", 4CV BALL VALVE ASSY, CHROME-PLAT BRASS BALL & BRASS STEM, FLOAT NSR

This 599 Series 2-way ball valve with a floating 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 4.0 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.