Shaoxing Weimin Fire Fighting Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of portable dry powder fire extinguishers in China. If you're going to wholesale bulk CE and ISO approved portable dry powder fire extinguishers, welcome to get pricelist and free sample from our factory. All customized products are with high quality and low price.

Applications of Portable Dry Powder Fire Extinguishers

Operational Principle

Portable Dry Powder Fire Extinguishers are used in locations where personnel must transport the extinguisher directly to the fire source without relying on fixed pipe networks or automatic suppression systems.

The extinguisher stores dry chemical powder and nitrogen propellant inside a steel pressure vessel operating at 14 Bar working pressure.

The extinguisher allows operators to discharge powder within seconds after removing the safety pin and activating the valve assembly.

Typical installation environments include:

▪ Delivery trucks and logistics vehicles carrying combustible packaging materials

▪ Generator rooms containing diesel engines and electrical control panels

▪ Workshops where welding, cutting, and grinding operations generate ignition sources above 600°C

▪ Warehouse aisles storing cartons, wooden pallets, and plastic packaging

▪ Electrical distribution rooms with equipment rated up to 1000V

Quality Assurance

Certifications & Compliance

Portable Dry Powder Fire Extinguishers can be manufactured according to project-specific certification requirements. Available compliance options may include:

EN3 portable fire extinguisher standard

CE requirements for applicable export markets

ISO 9001 production management system

25 BAR

Hydrostatic Pressure Verification

Each cylinder is pressure-tested at **25 Bar** before shipment to verify weld integrity and sealing performance under stored-pressure conditions.

Technical Specifications

Model	Capacity	Weight with Load	Height	Width
1KG	1KG	1.8 KG	33 cm	7.6 cm
2KG	2KG	2 KG	38.2 cm	10 cm
4KG	4KG	6.7 KG	50 cm	15 cm
8KG	8KG	12 KG	56 cm	16 cm

Manufacturing Excellence

Why Choose Weimin Portable Dry Powder Fire Extinguishers

Pressure-Tested Steel Cylinders

Each extinguisher uses an St12 steel cylinder tested at 25 Bar. The pressure test verifies the cylinder body, welded joints, and valve connection points before assembly.

Multiple Capacity Configurations

The product range covers 1 kg, 2 kg, 4 kg, 6 kg, 9 kg, and 12 kg models. Procurement teams can select extinguisher size according to fire load density, installation space, and local fire code requirements.

Batch Traceability

Production batches can be linked to filling records, pressure test results, and final inspection reports. This allows procurement teams to verify consistency across multiple shipments.

OEM Configuration Support

Cylinder color, operating labels, packaging marks, instruction manuals, and cartons can be modified according to distributor or project requirements.

Export Packaging Options

Packaging configurations can be adjusted according to pallet dimensions, container loading plans, and transportation requirements.

How to Use

1 Remove the safety pin from the valve assembly.

2 Hold the extinguisher in an upright position.

3 Direct the nozzle toward the base of the fire.

4 Press the operating lever to release nitrogen pressure.

5 Sweep the discharge stream horizontally across the burning surface.

For liquid fires, direct the powder across the fuel surface rather than into the center of the flame to reduce splash risk.

Safety Precautions

▪ Inspect the pressure gauge periodically and replace units showing pressure loss.

▪ Recharge or replace the extinguisher after any discharge event.

▪ Do not expose the cylinder to temperatures above the specified operating range.

▪ Do not use on combustible metal fires involving magnesium, sodium, or similar materials.

▪ Store the extinguisher where the operating handle and pressure gauge remain visible for inspection.

Potential failure modes include: pressure leakage through damaged valve seals, powder compaction caused by moisture ingress, and mechanical damage to the cylinder body during transportation.

Knowledge Base

Frequently Asked Questions

What fire classes can portable dry powder extinguishers suppress?

The extinguisher is designed for Class A, Class B, and Class C fires involving solid combustibles, flammable liquids, and energized electrical equipment.

What is the difference between portable and trolley-mounted extinguishers?

Portable units are carried manually by one operator, while trolley-mounted systems use wheels and are typically supplied with larger powder capacities.

What operating temperature range is supported?

The standard operating temperature range is -30°C to +60°C.

Can the extinguisher be installed in vehicles?

Yes. Portable units are commonly mounted in trucks, buses, construction machinery, and service vehicles using dedicated brackets.

What inspections should be performed during storage?

Users should inspect the pressure gauge, safety pin, hose condition, and cylinder surface for corrosion or mechanical damage.

Can Weimin provide OEM labeling and packaging?

Yes. Labels, cartons, manuals, and cylinder markings can be supplied according to customer requirements.

Request a Quote

Looking for Portable Dry Powder Fire Extinguishers for distribution, vehicle fleets, warehouse projects, or industrial facilities? Provide the following information for quotation:

▪ Required extinguisher capacity

▪ Certification requirements

▪ Destination country

▪ OEM labeling requirements

▪ Order quantity

*Technical specifications, packing details, and inspection documents can be provided during the quotation process.

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