Overview
The Belimo Z3075QPF-J+CQKB24-RR is a 3/4-inch 3-way Press Fit ZoneTight Quick Control Valve (QCV) with a 24V electronic fail-safe actuator configured normally closed. It ensures safe fail-closed shut-off in low-voltage hydronic zoning systems.
Features
- Electronic fail-safe action returns valve to normally closed position upon power disruption
- Low-voltage AC/DC 24 V operating power
- Press-fit connections enable fast, tool-free installation
- Dependable close-off performance for high-efficiency hydronic control
Specifications
- Valve Size: 3/4″ Press Fit
- Valve Type: 3-way ZoneTight (QCV)
- Flow Capacity: Cv 4.6
- Control Type: On/Off
- Nominal Voltage: AC/DC 24 V
- Fail-Safe Position: Normally Closed (Fail-Closed)
Applications
- Hydronic heating and chilled water zone control
- Fan coil units, VAV reheat coils, and radiant panels
- 24V HVAC loops requiring fail-closed security


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