Belimo Z2ZN0070 1/2" NPT 2-Way Zone Valve 3.5 Cv 24V Normally Open with Auxiliary Switch

The Belimo Z2ZN0070 is a compact 2-way zone valve designed for hydronic HVAC applications requiring precise flow control in tight spaces. This pressure-dependent control valve features a 1/2" NPT threaded connection and delivers a flow coefficient (Cv) of 3.5, making it suitable for small zone control applications in heating and cooling systems.

Key Features:

• 1/2" NPT internal thread connection for easy installation
• 2-way ball valve design with characterized flow control
• Flow coefficient (Cv) of 3.5 for optimal zone control
• 24V AC/DC operation for compatibility with standard HVAC control systems
• Normally Open (N/O) configuration - valve is open when de-energized
• Integrated auxiliary switch for status feedback and monitoring
• Self-cleaning ball valve technology reduces clogging and maintenance
• High close-off pressure capability ensures zero leakage
• Compact actuator design saves installation space

The ZoneTight valve combines reliable ball valve technology with precision flow control, offering superior performance compared to traditional globe valves. The auxiliary switch provides valuable feedback for building automation systems, enabling remote monitoring and system diagnostics. Ideal for zone control in commercial buildings, schools, hospitals, and multi-family residential applications.