Schneider Electric VS-7313-536-4-02 : 3-Way 1/2" Linked Globe Valve, Cv 2.2, Mixing, Brass Trim, NPT, Spring Return Electric Actuator, 24 VAC/DC, 35 in-lb Torque, 2-10VDC (4-20mA) Proportional Control Input, <130 Second Run Time, <15 Second Spring Return, NEMA 2 Enclosure, 3' Plenum Cable