Belimo B320+LF24-SR-S NPT Characterized Control Valve Assembly with Spring Return Actuator - 3/4 3-Way

The Belimo B320+LF24-SR-S is a 3-way 3/4" characterized control valve assembly with a Cv rating of 14 and stainless steel ball and stem. This complete valve and actuator package is designed for precision control of hot or chilled water in HVAC systems.

Valve Specifications:

• 3-way ball valve with 3/4" female NPT connections and 14 Cv flow coefficient
• Forged brass body with nickel plating, stainless steel ball, PTFE Teflon seals, and EPDM o-rings
• Maximum closeoff pressure of 200 psi
• Media temperature range of 0° to 250°F (-18° to 120°C)
• Compatible with hot or chilled water, up to 60% glycol

Actuator Features:

• Spring return actuator with 35 in-lb torque and AC/DC 24V operation
• 2-10VDC (4-20mA compatible) proportional control input
• 150 second run time with less than 25 second spring return
• Built-in SPDT auxiliary switch rated 1mA to 3A, adjustable 0° to 95°
• Position feedback signal 2-10V for building automation systems

Applications:

• Air handling units on heating or cooling coils
• Fan coil unit heating or cooling coils
• Hydronic systems with variable or constant flow
• Auxiliary switch enables safety interfacing or signaling for fan start-up

This factory-assembled valve and actuator combination eliminates installation time and ensures proper coupling. The spring return feature provides fail-safe operation, automatically returning the valve to a safe position upon power loss. Backed by a 5-year warranty.