Shaoxing Weimin Fire Fighting Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of pressurized trolley fire extinguisher in China. If you're going to wholesale bulk CE and ISO approved pressurized trolley fire extinguisher, welcome to get pricelist and free sample from our factory. All customized products are with high quality and low price.
How It Works
The cylinder contains extinguishing agent and nitrogen pressure in a sealed pressure vessel. During operation, the operator moves the trolley unit to a safe distance from the fire source and releases the safety mechanism.
When the discharge valve opens, nitrogen pressure pushes the extinguishing agent through an internal siphon tube. The agent then transfers through the discharge hose and exits the nozzle. The operator directs the discharge stream toward the base of the fire to interrupt combustion.
The trolley frame supports movement of the cylinder across warehouse floors, loading yards, equipment maintenance areas, and industrial production zones where carrying a large extinguisher manually is impractical.
Product Structure
Pressure Cylinder
The cylinder stores extinguishing agent and pressurizing gas under controlled pressure conditions. Carbon steel cylinders are commonly used for dry powder and foam applications.
Stored-Pressure System
Nitrogen pressure remains inside the cylinder during standby conditions and provides the force required to transfer extinguishing agent through the discharge system.
Valve Assembly
The valve controls agent release and seals the cylinder during storage. The assembly includes operating lever mechanisms, safety devices, and sealing components.
Discharge Hose and Nozzle
The hose transfers extinguishing agent from the cylinder to the fire location. The nozzle directs the discharge stream and allows the operator to control application.
Trolley Frame and Wheels
The steel frame supports cylinder weight and allows the unit to move across industrial surfaces. Wheels reduce manual lifting requirements during emergency deployment.
Detailed Parameters
| Spec | 25kg | 50kg | 50L |
|---|---|---|---|
| Dia | φ250 | φ300 | φ300 |
| Min Wall Thick | 2.0mm | 2.5mm | 2.5mm |
| Temp range | -20°C ~ +60°C | -20°C ~ +60°C | -20°C ~ +60°C |
| W.P | 18BAR | 18BAR | 18BAR |
| T.P | 27BAR | 27BAR | 27BAR |
| Power W.T | 25KG | 50KG | 50KG |
| Extin W.T | 47KG | 79KG | 80KG |
| Fire Rate | 34A 233B+13B C | 34A 233B+13B+13B C | 13A 233B+13B+13B |
| Packing | 40×33.5×95CM | 45×39×112CM | 45×39×112CM |
| Material | DC01 | DC01 | DC01 |
| Effect Range | ≥6M | ≥6M | ≥6M |
| Discharge Time | ≥15S | ≥30S | ≥40S |
Typical Applications
Fuel Storage Areas
Diesel tanks, fuel transfer stations, and generator installations contain combustible liquids that may require a larger extinguishing agent reserve than portable extinguishers can provide.
Warehouses
Warehouses storing cardboard packaging, wooden pallets, plastic containers, and finished goods may require extended discharge duration during initial firefighting operations.
Manufacturing Facilities
Production lines often contain hydraulic systems, lubricants, electrical control panels, and combustible materials. Trolley extinguishers provide a larger extinguishing agent inventory for emergency response.
Logistics and Loading Areas
Forklift charging stations, loading docks, and cargo handling zones concentrate equipment, packaging materials, and vehicle traffic in a limited area.
Marine and Port Facilities
Cargo terminals, shipyards, and dockside equipment operate in environments where larger extinguishers may be required to support first-response firefighting activities.
Why Choose Weimin Pressurized Trolley Fire Extinguishers
Stored-Pressure Design for Immediate Discharge
The extinguishing agent and nitrogen pressure remain inside the same cylinder. Operators can activate discharge immediately without connecting an external gas source.
Larger Agent Capacity Than Portable Extinguishers
The trolley structure supports larger cylinder volumes, increasing available extinguishing agent and extending discharge duration during firefighting operations.
Mobile Deployment Structure
The steel trolley frame and wheel assembly allow operators to transport larger extinguishers through industrial facilities without manual carrying.
Extended Hose Reach
The discharge hose allows the operator to maintain distance from heat sources while directing extinguishing agent toward the fire.
Compatible with Multiple Extinguishing Agents
Depending on application requirements, trolley units can be configured for dry powder, foam, water, or other extinguishing media.
Operating Instructions
INSPECTION AND MAINTENANCE
Routine inspection should include:
Potential failure modes include pressure loss caused by damaged seals, hose blockage caused by contamination, and wheel damage caused by improper handling. Periodic inspection helps identify these conditions before deployment.
⚠️ Mandatory Action: Any extinguisher that has discharged agent should be recharged before being returned to service.
Frequently Asked Questions
Q:
Why choose a trolley extinguisher instead of a portable extinguisher?
Trolley extinguishers contain a larger volume of extinguishing agent and provide longer discharge duration for industrial fire risks.
Q:
What extinguishing agents are available?
Depending on the application, trolley extinguishers can be supplied with dry powder, foam, water, or other extinguishing media.
Q:
Is a trolley extinguisher suitable for fuel storage areas?
Yes. Fuel storage facilities often require larger extinguishing agent quantities than portable extinguishers can provide.
Q:
How many people are required to operate the unit?
Most trolley extinguishers are designed for operation by one trained person, although site procedures may require additional personnel.
Q:
What maintenance is required?
Routine inspections should verify cylinder pressure, valve condition, hose integrity, and wheel assembly condition.
Q:
Can OEM branding be supplied?
Labels, cartons, instruction manuals, and packaging can be customized according to customer requirements.
Request a Quote
Looking for a supplier of Pressurized Trolley Fire Extinguishers for warehouses, fuel storage facilities, manufacturing plants, marine projects, or logistics centers?
Weimin supplies trolley fire extinguishers in multiple capacities and extinguishing agent configurations. OEM labeling, customized packaging, and export shipment support are available.
Information Required for Custom Proposals:
Send your required extinguisher type, capacity, destination market, and estimated order quantity. Our team can provide technical specifications, inspection documentation, production lead times, and quotation details based on your project requirements.
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