Belimo B321+NRX24-3-T N4 : 3-Way 3/4" Characterized Control Valve (CCV), Cv Rating 24, (48 GPM @ Δ 4 psi), Stainless Steel Trim + Configurable Valve Actuator, Non fail-safe, AC/DC 24 V, On/Off, Floating point, NEMA 4X, terminals
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 B321 Valve Specifications
| Pattern | 3-way |
| Cv | 24 |
| End Fitting | Internal thread |
| Fluid | Chilled or hot water, up to 60% glycol |
| Body Pressure Rating | 600 psi |
| Trim | Stainless Steel |
| Valve Size | 3/4" |
Actuator Specifications
| Voltage AC/DC | AC/DC 24 V |
| Power Consumption (Running) | 2 W |
| Power Consumption (Holding) | 0.2 W |
| Power Consumption For Wire Sizing | 4 VA |
| Control Type | Floating/3-point |
| Protection category | I66/67 |
| Degree Of Protection NEMA | NEMA 4X |
| Enclosure Type | UL Enclosure Type 4X |
Datasheets
 | Belimo B321+NRX24-3-T N4 Technical Data Sheet |
| Installation Instructions - CCV |
| Belimo Ball Valve Master Format |
| CCV Accessories Documentation |
- Valve Pattern:
- 3-Way
- Valve Size:
- 3/4 Inch
- CV Rating:
- 24
- GPM:
- 28 @ Δ 4 psi
- Material:
- Stainless Steel
- Actuator Type:
- Non Fail-Safe
- Voltage:
- 24VAC/DC
- Control Signal:
- On/Off, Floating Point
- Auxillary Switch:
- None
- Enclosure:
- NEMA 4X
