Pressure Independent Control Valve With Electric Actuator 3 4 In. NPT 2 Way 1 GPM Plated Brass Trim Communi SERIES WM2 & WMT49 490A 3 0 50 PSI Rango de Presion:0 a 1" w.c. 490A 3 0 50 PSI Probe Standard 10K 3 Thermistor High Accuracy 2 NPT 2 Way 1 GPM Plated Brass Trim Communicating Sylk (Fail Open) 24 Vac Pressure Independent Control Valve With Electric Actuator 3 4 In