Siemens 3/4" NPT 2-Way Normally Closed Zone Valve SR Fail Safe Actuator, 4.1 Cv (24V)

The 599 Series Zone Valves work with any SFA/P Series or SSA/P Series electric actuator, or with the STA/P73U Series thermic actuator (See Table 5). The actuators accept one of either 24 Vac or 120 Vac power supplies signal to provide two-position, three-position or 0 to 10 Vdc control. Typical applications include hot or chilled water for zones with radiators; floor heating via manifolds; fan coil units; cooling ceilings (Zone Valves); wall-mounted boilers (zone valves); and VAV applications. Features: Direct-coupled universal bonnet Direct-coupled installation without tools Manual override with 3mm hex wrench Visual position indication