| Temperature rating | Max applicable ambient temperature | Bulb’s Colour |
| 57℃(135℉) | 27℃(81℉) | Orange |
| 68℃(154℉) | 38℃(100℉) | Red |
| 79℃(174℉) | 49℃(120℉) | Yellow |
| 93℃(199℉) | 63℃(145℉) | Green |
| 141℃(286℉) | 111℃(232℉) | Blue |
| 182℃(360℉) | 152℃(306℉) | Purple |
| 260℃(500℉) | 230℃(446℉) | Black |
Working principle
The hanging dry powder fire extinguishing device is equipped with a temperature sensing glass bulb at the nozzle of the sprinkler head. Under normal circumstances, the upper end of the glass bulb is against the sealing sheet at the nozzle. In case of fire, the temperature rises, the liquid in the glass bulb will automatically expand and break due to thermal expansion, and the sealing sheet will automatically fall. The dry powder in the fire extinguishing device will be sprayed from the nozzle under the action of nitrogen to extinguish the fire. The fire extinguishing device of this series of products has the characteristics of fast fire extinguishing speed, low toxicity of fire extinguishing agent, safe use and so on.Scope of application
Because the hanging dry powder fire extinguisher does not need to lay pipelines or lines, its structure is light, compact and reasonable. As an auxiliary fire-fighting equipment of various fire-fighting systems, the hanging dry powder automatic fire extinguisher is especially suitable for local fires in oil depots, paint warehouses, power distribution rooms, ships and various laboratories, as well as various public places. For example, restaurants, Internet cafes, karaoke halls, office buildings, computer rooms, substation rooms, banks, schools, hotel rooms, home kitchens, hospitals, archives, museums, nursing homes, ship engine rooms, etc. The hanging dry powder fire extinguisher can automatically extinguish the fire under the condition of no one. At the same time, the fire extinguishing principle is vaporization. Therefore, it is often used in laboratories, computer rooms, reference rooms and other places that are afraid of water. It can be applied to fire types: class a fire, class B fire and class C fire. Class a fire refers to the fire caused by the combustion of solid organic matter. After burning, such substances will generally form fiery embers, such as fires of wood, paper, cotton and other substances. Class B fire refers to the fire caused by the combustion of liquid or fusible solid. Such as gasoline, diesel, kerosene, asphalt, alcohol, ester, ether, ketone, grease and other substances. Class C fire refers to the fire caused by gas combustion. Such as gas, liquefied petroleum gas, natural gas and other combustible gas fires.Introduction to products
My company's main fire products are: sprinkler head, spray head, water curtain sprinkler head, foam sprinkler head, early suppression quick response sprinkler head, quick response sprinkler head, glass ball sprinkler head, hidden sprinkler head, fusible alloy sprinkler head, and so on. Support ODM/OEM customization, according to customer requirements.
