Coliter ® Normally Open Electric Actuator – 5 Nm, 24V/220V, IP67 for Ball & Butterfly Valves
ZXQ02 Normally Open Electric Actuator – Compact Spring-Return Fail-Safe Automation for Small Valve Applications
The Coliter® ZXQ02 Normally Open (NO) Electric Actuator is a compact and reliable spring-return actuator designed for automated control of small ball or butterfly valves in HVAC, water systems, and light industrial applications. In the event of power loss, its integrated spring mechanism automatically drives the valve to the open position, ensuring critical flow continuity—making it well-suited for safety-critical circuits such as emergency cooling lines, ventilation supply, or domestic hot water recirculation. Delivering 5 Nm torque, it supports both 24V DC and 220V AC power options and features simple on/off (2-point) control with a convenient manual override for maintenance or manual operation. Housed in a corrosion-resistant aluminum alloy enclosure rated IP67, the ZXQ02 is protected against dust and water ingress, ensuring dependable performance in demanding environments. Designed to ISO 5211 mounting standards, it integrates seamlessly with building automation systems or smart thermostats—offering safe, efficient, and responsive valve control in space-constrained installations.
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Introduction to Electric Actuator
Coliter®’s electric actuators provide reliable automated control for ball, butterfly, and plug valves in water, HVAC, and industrial systems. The series includes the ZXQ01–ZXQ10 range, featuring 24V DC or 220V AC power options, on/off (2-point) or modulating (3-point) control, and torque ratings from 5 to 50 Nm. Models are available in normally open (NO) or normally closed (NC) configurations with manual override, IP67 protection, and aluminum alloy housing for durability. Designed for seamless integration with building automation systems (BAS), they enable remote operation of valves in pump stations, cooling towers, fire protection, and smart buildings—ensuring energy efficiency, fail-safe response, and long service life.