The sprinkler is a component of the automatic sprinkler system, which can be used not only for fire detection, but also for fire rescue through automatic spraying. It is usually installed in production sites, warehouses, shopping malls, hotels, hospitals, theaters, buildings, high-rise buildings and garages where there is a risk of fire. This sprinkler head can only be vertically installed in the water distribution branch pipe, and the watering shape is a parabola, and more than 80% of the water yield is sprayed downward, and a part of the water yield is sprayed to the ceiling at the same time.
1. Upright sprinkler: the nozzle is installed upward on the water distribution branch pipe, the watering shape is parabolic, 60%-80% of the water is sprayed downward, and 20%-40% of the water is sprayed upward to the ceiling.
2. Pendant sprinkler: The nozzle is installed downward on the water distribution branch pipe, and the watering shape is parabolic, 80%-100% of the water is sprayed downward, and 0%-20% of the water is sprayed upward to the ceiling.
Upright sprinkler is composed of copper alloy structure, temperature-sensitive glass ball, sealing parts, etc., with compact structure and beautiful appearance.
1. The structure of the nozzle is made of high-quality copper rods, which are formed by forging and pressing in stages, with high strength and strong corrosion resistance, and the surface is polished and chrome-plated.
2. The splash plate should be installed upright. If necessary, it can be combined with the vertical heat collecting cover.
The main technical parameters of the upper spray nozzle:
1. Nominal diameter: 15mm, interface thread: R1/2.
2. Flow characteristic coefficient: K=80±4.
3. Nominal operating temperature: 57°C, 68°C, 79°C, 93°C.
4. Additional working pressure: 1.2MPa, factory seal test pressure: 3.2MPa. 100% inspection.
5. The amount of water sprayed downward by the nozzle: 89%.
6. Response (indicated by T) uses Φ5mm glass balls, and the response time coefficient: 50＜RTI≤80.
