Siemens 241-00234 ZONE VALVE, 3-WAY, 1/2", 4.0 CV, NPT W/ 115V 2-POS SR ACTUATOR, FAILS AB-ASiemens 241 00234 Zone valve, 3 way, 1 2", 4. 0 Cv, NPT w 115V 2 pos SR actuator, fails AB AZone valve and actuator assembly. 3 way valve body; NPT connection; Line size 0. 50 inch; Flow rate 4. 0 Cv; SFA11U 2 position, spring return actuator; 115 Vac; fails AB A. Zone valve and actuator assembly. 3 way valve body; NPT connection; Line size 0. 50 inch; Flow rate 4. 0 Cv; SFP11U 2 position, spring return actuator; 120Vac; fails AB A open. Additional