Overview
The Belimo Z3050QPF-H+CQKB24-S-RR is a 1/2-inch 3-way Press Fit ZoneTight Quick Control Valve (QCV) package equipped with an electronic fail-safe actuator and an auxiliary switch. Configured for fail-closed operation, it provides On/Off control for hydronic heating and cooling systems.
Features
- Electronic fail-safe operation returns valve to normally closed position upon power interruption
- Integrated 1 x SPST auxiliary switch for position feedback and control integration
- Press-fit connections designed for tool-free, easy snap-on mounting in tight spaces
- High close-off capability and precise flow control
Specifications
- Valve Size: 1/2″ Press Fit
- Valve Type: 3-way ZoneTight (QCV)
- Flow Capacity: Cv 2.7
- Control Type: On/Off
- Nominal Voltage: AC/DC 24 V
- Auxiliary Switch: 1 x SPST
- Fail-Safe Position: Normally Closed (Fail-Closed)
Applications
- Commercial hydronic heating and chilled water zoning
- Fan coil units, VAV reheat coils, and radiant panels
- HVAC systems requiring status feedback and fail-closed safety


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