Overview
The Belimo Z3100QPF-J+CQKB24-LL is a 1-inch, 3-way ZoneTight Quick Control Valve (QCV) assembly with press fit connections paired with an electronic fail-safe actuator. Operating on 24V AC/DC, it provides On/Off hydronic flow control with a normally open fail-safe position.
Features
- Electronic fail-safe functionality ensures default open valve position upon power interruption
- Press fit connection design allows fast and secure piping installation
- Cv 4.4 flow capacity suitable for hydronic system temperature regulation
- Compact ZoneTight construction ideal for restricted mechanical spaces
Specifications
- Valve Size: 1″
- Configuration: 3-way
- Flow Capacity: Cv 4.4
- Control Type: On/Off
- Operating Voltage: AC/DC 24 V
- Connection Type: Press Fit
- Fail-Safe Position: Normally Open
Applications
- Hydronic heating and cooling systems in commercial buildings
- Fan coil units, unit ventilators, and heat pumps
- Water loop temperature control in HVAC installations


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