I. Core Composition and Working Principle

• Core Composition: It mainly consists of a tank body, fire-extinguishing dry powder medium, pressure device (such as driving gas like nitrogen), valve system (including activation components like solenoid valves), and spray assembly. Some models are also equipped with communication interfaces and power supply interfaces, enabling intelligent control.
• Working Principle: The tank stores fire-extinguishing materials such as ultra-fine dry powder and is filled with driving gas at a certain pressure (usually with a pressure range of 0.8Mpa~1.2Mpa, such as model YDP-20). In case of a fire, the valve is opened through manual triggering or automatic control (such as solenoid valve activation). The driving gas pushes the dry powder out from the spray port, and the dry powder covers the surface of the burning material, interrupting the combustion reaction through chemical inhibition and suffocation, thereby achieving the fire-extinguishing effect.

II. Key Performance Parameters (Refer to Model YDP-20 as an Example)

• Fire-extinguishing Capability:
  • The fire rating usually covers categories A, B, E, F, etc. (for example, the fire rating of YDP-20 is 02.5A/13B/E/5F), corresponding to solid fires (Class A), liquid or meltable solid fires (Class B), live equipment fires (Class E), grease fires in cooking appliances (Class F), etc., making it suitable for various fire situations.
  • The fire-extinguishing range is relatively large. Some models can cover a maximum space of 100m³, with a spray distance of up to 5m, and the spray time is usually within 60 seconds (for the 20L capacity model), which can quickly control initial fires.
• Physical and Usage Parameters:
  • Size and Weight: Different models have different sizes. For example, model YDP-20 has a height of 44mm and a radius of 375mm, with a net weight of 19.25kg, making it easy to install and move.
  • Working Conditions: The operating temperature is generally -20℃~+45℃, adapting to different environments; the tank pressure needs to be maintained within a reasonable range (such as 0.8Mpa~1.2Mpa) to ensure spray efficiency.

III. Outstanding Features

1. Advantages of Fire-extinguishing Medium: Most use ultra-fine dry powder, which has small particle size and good fluidity. It can cover the burning material more evenly, with faster fire-extinguishing speed and less secondary damage to equipment.
2. Convenient Operation and Maintenance:
   • The installation method is mostly quick-release design, facilitating rapid deployment or replacement; the activation method often uses solenoid valves, with quick response, and the tank can be refilled and reused, reducing usage costs.
   • Some models support intelligent control (such as control via PSDK) and can be linked with devices like drones (e.g., matching the interface of DJI FlyCart 100), making them suitable for fire-extinguishing operations in special scenarios such as high-altitude and remote areas.
3. Wide Application Scenarios: It can efficiently extinguish initial fires in industrial workshops, warehouses, vehicles, electrical equipment, as well as outdoor forests, grasslands, etc.

IV. Precautions

• Regularly check the tank pressure, valve tightness, etc., to ensure the device is in normal working condition.
• Different models vary in fire rating and spray range, so the appropriate model should be selected according to specific usage scenarios.
• After fire extinguishing, the residual dry powder should be cleaned up in time to avoid impact on precision equipment (although the residual of ultra-fine dry powder is relatively small).