Siemens 244-00234 ZONE VALVE, 3-WAY, 1/2", 4.0 CV, NPT W/ 24V FLOATING NSR ACTUATORSiemens 244 00234 Zone valve, 3 way, 1 2", 4. 0 Cv, NPT w 24V floating NSR actuatorZone valve and actuator assembly. 3 way valve body; NPT connection; Line size 0. 50 inch; Flow rate 4. 0 Cv; SSA81U 3 position, non spring return actuator, 24V, AB A closed in zero position. Zone valve and actuator assembly. 3 way valve body; NPT connection; Line size 0. 50 inch; Flow rate 4. 0 Cv; SSA81U 3 position, non spring return actuator, 24V, AB A normally