Upright & Pendent Fire Sprinkler
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JD001/JD002 standard/quick response upright spray sprinkler and JD003/JD004 standard/quick response pendent spray sprinkler are spherical glass automatic sprinklers. They are standard/quick response-standard orifice plate sprinklers, and are used for fire fighting system meets the standard installation specification authorization.
Sprinkler Operation
In case of fire, the thermosensitive liquid in the glass bulb will quickly expand, which will result in the blasting of glass bulb and discharging the seal assemblies, such as stopper and springs. The water flowing through sprinkler orifice will lash against the sprinkler deflector, which will then form uniform sprinkling water flow to control or extinguish the fire.
| Model | JD001 | JD002 | JD003 | JD004 |
| Style | Upright | Pendent | ||
| Response | Standard Response | Quick Response | Standard Response | Quick Response |
| Bulb Nominal Dia | Job 5mm | Job 3mm | Job 5mm | Job 3mm |
| Thread Size | NPT 1/2" or R 1/2" | |||
| Nominal Orifice Size | 1/2 inch | |||
| Nominal K-factor | 5.6(U.S)/80 (metric) | |||
| Max.Working Pressure | 175psi/1.2Mpa | |||
| Factory Hydrostatic Test | 100%@500psi | |||
| Min.Operating Pressure | 7psi/0.048Mpa | |||
| Sprinkler Finish | Brass / Chrome / White | |||
| Approval | UL | |||
| Temp. Classification | Ordinary | Intermediate | Intermediate |
| Nominal Temp. Rating | 155℉/68℃ | 175℉/79℃ | 200℉/93℃ |
| Max. Ambient Temp. Allowed | 135℉/57℃ | 155℉/68℃ | 180℉/82℃ |
| Max. Recommended Ambient Temp. | 100℉/38℃ | 150℉/65℃ | 150℉/65℃ |
| Glass Bulb Color | Red | Yellow | Green |
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