Description
Belimo Z2075Q-K+CQKB24-RR Overview
The Belimo Z2075Q-K+CQKB24-RR is a factory-assembled, 3/4-inch two-way characterized control valve and electric fail-safe actuator combination engineered for precise hydronic flow control in commercial and light commercial HVAC systems. The valve body (Z2075Q-K) features a characterized ball design that delivers an equal-percentage flow characteristic, ensuring accurate and repeatable control across the full operating range. Paired with the CQKB24-RR actuator operating on 24V AC/DC power, this assembly provides reliable on/off or floating-point control with built-in spring-return fail-safe operation.
Key Features
- 3/4-inch two-way characterized control valve body
- 9.8 Cv flow coefficient for optimized hydronic performance
- 24V AC/DC electric actuator with spring-return fail-safe action
- Factory-matched valve and actuator assembly for simplified installation
- Equal-percentage flow characteristic for precise modulation
- On/off and floating-point control capability
- Quick-connect actuator design for easy field replacement
- Compact, space-saving profile ideal for tight mechanical spaces
Applications
- Fan coil unit heating and cooling coil control
- Air handling unit hydronic coil isolation and modulation
- Terminal unit flow control in commercial HVAC systems
- Chilled water and hot water distribution systems
- Building automation and direct digital control (DDC) integration
Why Choose Belimo
Belimo is a globally recognized leader in actuator and control valve technology for HVAC applications. The Z2075Q-K+CQKB24-RR combines Belimo’s proven valve body engineering with a reliable electric actuator in a single, pre-matched assembly — reducing installation time, eliminating sizing guesswork, and delivering long-term system reliability. The fail-safe spring-return mechanism ensures the valve moves to its safe position upon loss of power, protecting system components and maintaining occupant comfort.
Specifications
- SKU: Z2075Q-K+CQKB24-RR
- Brand: Belimo
- Valve Size: 3/4 inch
- Configuration: 2-Way
- Flow Coefficient (Cv): 9.8
- Control Voltage: 24V AC/DC
- Actuator Type: Electric, Spring-Return Fail-Safe
- Control Signal: On/Off, Floating Point
- Flow Characteristic: Equal Percentage (Characterized)







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