Fire Extinguisher Dry

WEIMIN dry powder fire extinguishers are portable firefighting units that store a chemical agent inside a pressurized steel cylinder. When operated, the agent is expelled through the discharge assembly and distributed over the affected area to help control combustion.
Agent Composition: ABC dry chemical powder
Capacity Options: 1 kg, 2 kg, 4 kg, 6 kg, 9 kg, and 12 kg
Cylinder Construction: St12 steel
Working Pressure: 14 bar
Temperature Range: −30°C to +60°C
The powder formulation is an important factor in determining firefighting capability. ABC agents are generally intended for fires involving ordinary combustible materials, flammable liquids, and flammable gases under applicable classification systems. Actual suitability depends on the tested rating of the selected model.

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Technical Specifications

Technical Item	Specification
Manufacturer Brand	WEIMIN
Extinguisher Type	Portable dry powder
Agent Formulation	ABC chemical powder
Nominal Charge Sizes	1 / 2 / 4 / 6 / 9 / 12 kg
Cylinder Material	St12 steel
Rated Working Pressure	14 bar
Hydrostatic Test Pressure	25 bar
Operating Temperature	−30°C to +60°C
Pressurization System	Stored pressure
Fire Performance Rating	Depends on the certified model

Specifications above reflect the previously referenced general WEIMIN ABC powder range. Confirm the individual model's approved data before publication, particularly its fire rating, dimensions, and discharge performance.

Internal Design and Fire Control

Components and Their Roles

Component	Purpose
Pressure Cylinder	Contains the extinguishing powder and pressurized gas
Release Valve	Regulates agent discharge
Lever Mechanism	Allows the operator to initiate discharge
Locking Pin	Prevents unintended activation during storage and handling
Pressure Indicator	Shows internal pressure on applicable versions
Delivery Hose and Outlet	Direct the powder toward the target area, depending on configuration
Pickup Assembly	Supports agent delivery from the cylinder interior where fitted

Powder Discharge Process

Once the release mechanism is activated, pressure forces the dry agent out of the cylinder. The particles enter the flame zone and disrupt the chemical reactions required to sustain combustion. For certain Class A hazards, ABC powder may also form a layer over the burning material.

Unlike clean-agent alternatives, dry powder leaves deposits on surrounding surfaces. This is an important consideration around precision instruments, electronic assemblies, and machinery that could be affected by contamination.

The appropriate extinguisher should be chosen according to the identified hazard, certified fire rating, and applicable safety requirements. Inspection and servicing should follow the manufacturer's instructions and local regulations.