Belimo B339+AFRB24-SR Stainless Steel Ball Valve with Actuator - 1-1/2 3-Way

The Belimo B339+AFRB24-SR is a high-performance valve assembly combining a 1-1/2" three-way stainless steel ball valve with a 24VAC spring return proportional actuator. This industrial-grade valve package is designed for precision flow control in HVAC and process control applications requiring reliable modulating control.

Key Specifications:

• Valve Size: 1-1/2" (DN40) threaded connections
• Valve Type: 3-way ball valve with stainless steel construction
• Flow Coefficient (Cv): 29
• Actuator: AFRB24-SR spring return proportional actuator
• Power Supply: 24VAC
• Control Signal: 2-10 VDC proportional control
• Fail-Safe Operation: Spring return to default position on power loss
• Actuator Torque: 150 lb-in (17 Nm)

Features:

• Stainless steel ball and stem for corrosion resistance and durability
• Spring return actuator provides fail-safe positioning for critical applications
• Proportional control allows precise modulation of flow
• Compact design suitable for tight mechanical room installations
• Manual override capability for maintenance and commissioning
• High flow capacity with Cv of 29

This valve assembly is ideal for mixing and diverting applications in chilled water, hot water, and heating systems. The stainless steel construction ensures long service life even in demanding commercial and industrial environments. The spring return actuator provides safety by automatically returning to a predetermined position during power failure or emergency shutdown conditions.