| Characteristics and Functions | ||
| Model | FESFR fire sprinkler | |
| Material | Brass, chrome plating | |
| Type | Upright/ Pendent/ Horizontal Sidewall | |
| Norminal diameter(mm) | DN15 or DN20 | |
| Connecting thread | R1/2" or R3/4" | |
| Glass bulb color | Red | |
| Temperature rating | 68°C | |
| Flow Rate | 80±4 or 115±6 | |
| Bulb | 3mm or 5mm | |
| Response | quick response | |
| Nozzle Rated Temp | Max Ambient Temp | Glass Ball Color |
| 57°C | 27°C | Orange |
| 68°C | 38°C | Red |
| 79°C | 49°C | Yellow |
| 93°C | 63°C | Green |
| 141°C | 111°C | Blue |
| 182°C | 152°C | Purple |