Belimo B308B+TFRB24-S : 3-Way 1/2" Characterized Control Valve (CCV), Cv Rating 0.46, (0.92 GPM @ Δ 4 psi), Chrome Plated Brass Trim + Fail-Safe Valve Actuator, 24VAC/DC, On/Off Control Signal, (1)SPDT 3A @250V Aux Switch, 5-Year Warranty
Ideal for air handling units, fan coil units, and various HVAC applications, the Belimo CCV ensures efficient heating or cooling coil regulation. Its versatility extends to Unit Ventilators, VAV box re-heat coils, and bypass loops, making it a cornerstone of hydronic systems with variable flow requirements.
Key Benefits of the Belimo Characterizing Disc:
- Equal percentage flow characteristic for precise control.
- Enhanced control stability with the characterizing disc.
- Comparable Cv values to globe valves of the same size.
- Reduced need for multiple pipe reductions.
- Prevents control loop "hunting," ensuring longevity of components and optimizing energy consumption.
Belimo B308B Valve Specifications
| Pattern | 3-way |
| Cv | 0.46 |
| End Fitting | Internal thread |
| Fluid | Chilled or hot water, up to 60% glycol |
| Body Pressure Rating | 600 psi |
| Trim | Chrome Plated Brass |
| Valve Size | 0.5" |
Belimo TFRB24-S Valve Actuator Specifications
| Voltage AC/DC | AC/DC 24 V |
| Power Consumption (Running) | 2.5 W |
| Power Consumption (Holding) | 1.3 W |
| Power Consumption For Wire Sizing | 5 VA |
| Auxiliary Switches | 1 x SPDT |
| Control Type | On/Off |
| Running Time (Motor) | 75 s |
| Running Time (Fail-safe) | <25 s |
| Protection category | IP42 |
| Degree Of Protection NEMA | NEMA 2 |
| Enclosure Type | UL Enclosure Type 2 |
| Ambient Temperature | -22...122°F [-30...50°C] |
Datasheets
 | Belimo B308B+TFRB24-S Technical Data Sheet |
| Installation Instructions - CCV |
| Belimo Ball Valve Master Format |
| CCV Accessories Documentation |
- Valve Pattern:
- 3-Way
- Valve Size:
- 1/2 Inch
- CV Rating:
- 0.46
- GPM:
- 0.92 @ Δ 4 psi
- Material:
- Chrome Plated Brass
- Actuator Type:
- Fail-Safe
- Voltage:
- 24VAC/DC
- Control Signal:
- On/Off
- Auxillary Switch:
- None
- Enclosure:
- None
