Coliter ® Normally Open Electric Actuator – 5 Nm, 24V/220V, IP67 for Ball & Butterfly Valves
ZXQ03 Normally Open Electric Actuator – Compact Spring-Return Fail-Safe Automation for Small Valve Applications
The Coliter® ZXQ03 Normally Open (NO) Electric Actuator is a compact, low-torque spring-return actuator designed for fail-safe control of small ball or butterfly valves in residential, light commercial, and HVAC systems. In the event of power failure, its integrated spring mechanism automatically returns the valve to the open position, ensuring essential flow continuity—ideal for applications such as domestic hot water recirculation, ventilation safety lines, or emergency supply circuits. With an output torque of 5 Nm, it supports both 24V DC and 220V AC power options and features simple on/off (2-point) control with a built-in manual override for maintenance or manual operation. Enclosed in a lightweight yet durable aluminum alloy housing rated IP67, the ZXQ03 offers reliable protection against dust and water ingress. Compliant with ISO 5211 mounting standards, it enables easy integration with smart thermostats or building automation systems—delivering safe, energy-efficient, and responsive valve control in compact 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.
