The Sprinkler Models, including models BL 5621, BL 5622, BL 5623 and BL 5624, are designed in accordance with UL 199 standards and is available in both Standard Response and Quick Response configurations. These sprinklers are available in upright (BL 5623, BL 5624) and pendent (BL 5621, BL 5622) orientations, providing flexible installation options for a wide range of fire protection systems. Featuring a K 11.2 design, the series provides broad water distribution and reliable performance for CMDA storage and non-storage applications in accordance with NFPA 13. Available in multiple temperature ratings and finish options, the series features a robust cast body and frame for dependable performance and durability.
| Model Number | BL 5621, BL 5622, BL 5623, BL 5624 |
|---|---|
| K-Factor | 11.2 (160) |
| Nominal Thread Size | 3/4" NPT |
| Maximum Tightening Torque | 21 ft-lbs (28.6 Nm) |
| Working Pressure | PN 12 |
| Factory Hydrostatic Test | 100% tested at 500 PSI (34.50 Bar) |
| Max temperature | 68°C / 93°C (155°F / 200°F) |
Engineered for dependable flow control and long-term operation.
Manufactured to meet recognised quality and performance standards.
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