Belimo Z2050QS-J+CQKB24-SR-LR : 2-Way 1/2" Sweat ZoneTight Zone Valve Cv Rating 5.9 (11.8 GPM @ Δ4 psi), Electronic Fail-Safe Actuator, 24VAC/DC, Modulating 2-10VDC Control Signal, Normally Open
Valve Specifications
| Pattern | 2-way |
| Cv | 5.9 |
| Fluid | Chilled or hot water, up to 60% glycol |
| Body Pressure Rating | 360 psi |
| Differential pressure Δpmax | 40 kPa |
| Flow characteristic {Tools} | Equal percentage |
| End Fitting | Sweat |
| Trim | Chrome plated brass |
| Valve Size | 0.5" [15] |
Actuator Characteristics
| Voltage AC/DC | AC/DC 24 V |
| Power Consumption (Running) | 2.5 W |
| Power Consumption (Holding) | 0.5 W |
| Power Consumption For Wire Sizing | 5 VA |
| Control Type | 2-10VDC |
| Protection category | IP40 |
| Degree Of Protection NEMA | NEMA 2 |
| Enclosure Type | UL Enclosure Type 2 |
Data Sheets
 | Technical data sheet – Belimo Z2050QS-J+CQKB24-SR-LR |
| Installation instructions - CQK ZoneTight |
| Consultant Specifications |
| ZoneTight Technical Documentation |
- Valve Pattern:
- 2-Way
- Valve Size:
- 1/2 Inch
- Connection Type:
- Sweat
- CV Rating:
- 5.9
- GPM:
- 11.8 @ 4 psi
- Actuator Type:
- Fail-Safe
- Voltage:
- 24VAC/DC
- Control Signal:
- 2-10VDC
- Auxillary Switch:
- None
