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Universal Range Compatibility: Replaces common part numbers including Southbend 1183200
Always verify the specific series and serial number of your unit before installation
What is the difference between the -002 and the -002/U models
Key Benefits Direct OEM Replacement: Optimized for use as the direct successor to part number 9004550215
provided the original unit utilizes a 115V 3-speed configuration
Belimo CQKB24-SR-LL Actuator R-22 Universal Range Compatibility: Replaces commonThe Belimo CQKB24 SR LL is a specialized electronic fail safe actuator designed for ZoneTight zone valves, delivering precise control in hydronic systems. Operating on a 24V AC DC power supply, it utilizes a proportional 2 10VDC or 4 20mA control signal to provide modulating performance. This model features a normally open (N O) fail safe position, ensuring the valve returns to its de energized state during power loss using low maintenance capacitor