Belimo B312B+LF24-SR-S NPT Bronze Control Valve with Spring Return Actuator - 1/2 3-Way

The Belimo B312B+LF24-SR-S is a compact, high-performance characterized control valve (CCV) assembly designed for precise flow control in HVAC applications. This assembly combines a 1/2" NPT bronze 3-way valve body with a spring return actuator for fail-safe operation.

Key Features:

• 3-way valve configuration for diverting or mixing applications
• 1/2" NPT threaded connections for easy installation
• 3.0 Cv (flow coefficient) for optimal flow capacity
• Bronze valve body construction for durability and corrosion resistance
• 24V AC/DC actuator with spring return for fail-safe positioning
• 2-10V DC control signal for proportional control
• Auxiliary switch (SW) for position feedback
• Characterized control valve design provides linear flow characteristics

The spring return mechanism automatically returns the valve to its fail-safe position upon power loss, making this assembly ideal for critical HVAC systems requiring reliable safety features. The 2-10V control interface allows for precise modulation and easy integration with building automation systems.