Belimo B223+LF120-S 1" NPT 2-Way Spring Return Control Valve 10 Cv 120V

The Belimo B223+LF120-S is a compact 2-way characterized control valve (CCV) designed for hydronic HVAC applications requiring reliable on/off control. This valve assembly combines a 1" NPT threaded brass valve body with a 120V spring return electric actuator for fail-safe operation.

Key Specifications:

• Valve Coefficient (Cv): 10, providing precise flow control for medium-capacity systems
• Connection Size: 1" NPT threaded connections for standard pipe installations
• Actuator: LF120-S series with 120V AC power supply
• Control Type: 2-position on/off with spring return to normally closed position upon power loss
• Operation: Spring return mechanism ensures valve returns to safe position during power failure
• Auxiliary Switch: Integrated auxiliary switch for status feedback

Features & Benefits:

• Characterized control valve design provides linear flow characteristics for accurate temperature control
• Brass valve body construction ensures durability and corrosion resistance
• Spring return failsafe operation protects system during power interruptions
• Compact actuator design minimizes installation space requirements
• Auxiliary switch enables remote position indication and building automation integration
• Suitable for chilled water, hot water, and glycol solutions in heating and cooling systems

Ideal for zone control applications, fan coil units, unit heaters, and other hydronic equipment requiring reliable on/off valve control with fail-safe positioning.