Description
Belimo B211+LRB24-SR Overview
The Belimo B211+LRB24-SR is a factory-matched 2-way valve and actuator assembly engineered for precise hydronic flow control in commercial HVAC systems. Featuring a characterized control valve (CCv) body with stainless steel trim and a 1/2″ NPT connection, this assembly delivers reliable, repeatable performance in heating and cooling coil applications. The integrated LRB24-SR non-spring-return actuator eliminates the need for field pairing, ensuring optimal valve-actuator compatibility right out of the box.
Valve Specifications
- Configuration: 2-Way (Characterized Control Valve – CCv)
- Connection: 1/2″ NPT
- Flow Coefficient: Cv 1.9
- Trim Material: Stainless Steel
- Valve Body: Designed for hydronic heating and cooling coil service
Actuator Specifications
- Model: LRB24-SR (Non-Spring Return)
- Torque: 45 in-lb
- Control Signal: 2–10 Vdc proportional
- Supply Voltage: 24 Vac / 24 Vdc
- Operation: Non-Spring Return (NSR) — position is maintained on power loss
Key Features & Benefits
- Factory-matched valve and actuator assembly for guaranteed compatibility
- Stainless steel trim provides superior corrosion resistance and long service life
- Characterized control valve (CCv) delivers equal-percentage flow characteristics for accurate modulation
- 2–10 Vdc proportional control signal integrates seamlessly with building automation systems (BAS)
- Non-spring-return design retains last position on power interruption, reducing actuator wear
- 45 in-lb torque rating ensures positive valve seating across the full operating range
- Compact assembly simplifies installation and reduces field labor
- Belimo quality engineering trusted by HVAC professionals worldwide
Typical Applications
- Fan coil units (FCUs)
- Air handling units (AHUs)
- Hydronic heating and cooling coils
- Building automation and energy management systems
- Variable flow hydronic systems
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