Spartan Spring Return Zone Valve Actuator, 2 Position, 24VAC

The ME4430, normally open series, & the ME4530, normally closed series are 2-position, 2-wire, fail-safe on power disruption units. They are designed for onoff control of hot or chilled water, glycol (50%) and low-pressure steam. These 2-way and 3-way control valves all use common high strength, glass filled, nylon composite, electric gear motor actuators. An insulating collar keeps the valve body heat away from the actuator. The actuator is equipped with a dial type position indicator and an M30 quick disconnect mounting thumbnut.

Electrical connection for Economy Version:
Electrical connection 24 Vac Class 2 wiring using strain relief 7/8” connector provided: Connect the two wires (polarity is not required) to the short leads of the electric motor. Secure the connection with wire marets & tuck them inside the motor true 7/8” hole. Snap on the wire connector, press into the opening & it will lock in place.
Do NOT open or remove the actuator cover.

Valve Bodies
All valve bodies are spring-loaded stem up. The spring returns the valve & actuator to the stem up position when power is lost in fail open type ME4430 or fail closed in type ME4530. All valve bodies have in line replaceable and / or interchangeable cartridges to enable Cv (Kv) size change on site, resizing or servicing with out removing the valve body from the pipe. Refer to the valve body data sheet for complete specification and selection.