Siemens 171A-10361 599 SERIES 3W, 1", 10 CV BALL VALVE, 3-POS FLOAT, NON-SPRING RETURN ACTUATORSiemens 171A 10361 This 599 Series 3 way ball valve with a non spring return 3 position (floating) actuator assembly, providing 200 PSI close off, is used to control hot or chilled water and up to 50% glycol solution in air handlers, convectors, fan coil units, unit conditioners, radiation and reheat coils. This 1 inch valve is 10 Cv, with chrome plated brass ball and brass stem, includes an operating handle that can manually operate valve in the