Overview
The Belimo Z2100QPF-K+CQKB24-SR-LL is a 1-inch, 2-way ZoneTight Quick Control Valve (QCV) assembly with press-fit connections and a modulating electronic fail-safe actuator. Set as normally open, it provides dynamic 2…10 V flow control and fail-open security.
Features
- Modulating 2…10 V control for precise temperature and flow regulation
- Electronic fail-safe feature drives valve to normally open position on power loss
- Press-fit connections simplify installation without soldering
- Compact form factor suited for confined spaces
Specifications
- Valve Size: 1″
- Connection Type: Press Fit
- Valve Type: 2-way
- Flow Coefficient: Cv 8.2
- Control Signal: 2…10 V (Modulating)
- Nominal Voltage: AC/DC 24 V
- Fail-Safe Position: Normally Open (Fail-Open)
Applications
- Modulating hydronic zone control in commercial HVAC systems
- Fan coil units, duct coils, and air handling equipment
- Hydronic systems requiring continuous dynamic control and fail-open security


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