| ZSTM water curtain spray nozzle features | | | | | | |
| it is important spare parts of auto-or hand water curtain system, widely used in building, | | |
| or large space being protected by curtain. | | | | | | |
| working method; | | | | | | | | |
| When fire occurs , alarm detection and alarm devices , and turn on the rain alarm valve system of water | |
| supply to the pipe network ,the water flow through the nozzle of the spray resistance from the semi-circular openings |
| in a predetermined direction ejected a dense | | | | | | |
| granular water droplets to form a water curtain for cooling to protect the fire shutter doors , | | |
| theater curtain . Flame arrester can also play a role in isolation . | | | | |
| performance data as below: | | | | | | | |