Siemens 248-00230 ZONE VALVE, 3-WAY, 1/2", 1.0 CV, NPT W/ 24VAC, SSP61U ACTUATOR, 0-10VDC, NSRSiemens 248 00230 Zone valve, 3 way, 1 2", 1. 0 Cv, NPT w 24Vac, SSP61U actuator, 0 10Vdc, NSRZone valve and actuator assembly. 3 way valve body; NPT connection; Line size 0. 50 inch; Flow rate 1. 0 Cv; SSP61U 0 10Vdc, non spring return actuator, 24Vac, normally open Zone valve and actuator assembly. 3 way valve body; NPT connection; Line size 0. 50 inch; Flow rate 1. 0 Cv; SSP61U 0 10Vdc, non spring return actuator, 24Vac, AB A open in zero position