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it utilizes a 1/2 inch bore and is designed for counter-clockwise (CCW) rotation facing discharge
which effectively mitigates the impact of condensing pressure fluctuations on the opening degree
Industrial Durability: Rugged ASTM A126 Class B cast iron construction for long-term reliability in utility and industrial settings
High Thermal Dissipation: The rugged steel housing is designed for superior heat rejection in tight mechanical compartments
Belimo CQKB24-SR-LL Actuator R-134A it utilizes a 1/2 inchThe 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