Shaoxing Weimin Fire Fighting Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of trolley stainless steel fire extinguisher in China. If you're going to wholesale bulk CE and ISO approved trolley stainless steel fire extinguisher, welcome to get pricelist and free sample from our factory. All customized products are with high quality and low price.
Trolley Stainless Steel Fire Extinguisher for Industrial Corrosive Environments
A Trolley Stainless Steel Fire Extinguisher is a mobile fire suppression system consisting of a stainless steel pressure cylinder, valve assembly, discharge hose, nozzle, and steel trolley frame with industrial wheels. The cylinder is manufactured from SUS304 stainless steel plate and formed into a pressure vessel structure designed to store ABC dry powder or foam agent under controlled working pressure.
The system transfers extinguishing agent through a siphon tube inside the cylinder. When the valve is opened, internal pressure pushes the agent through the hose and nozzle to form a continuous discharge stream for surface fire suppression in industrial environments.
Why Stainless Steel Cylinder Structure Matters in Industrial Fire Systems
The cylinder is built with SUS304 stainless steel, which resists oxidation and chloride corrosion under humidity, coastal air, and chemical vapor exposure.
Compared with painted carbon steel cylinders, stainless steel reduces rust formation on the cylinder wall and valve interface, which can otherwise cause sealing degradation and pressure leakage over long storage periods.
In industrial installation scenarios such as outdoor chemical storage zones or coastal warehouses, corrosion usually starts at the valve thread and weld seam. The stainless steel structure slows this corrosion path by maintaining surface passivation, which supports long-term pressure retention inside the cylinder without frequent repainting or anti-rust treatment.
System Working Principle (Pressure Transfer + Agent Discharge)
Pressure-Driven Transfer
The extinguisher operates as a pressure-driven transfer system. The valve assembly opens the sealed cylinder, allowing compressed internal pressure to act on the extinguishing agent column. The agent is pushed through an internal siphon tube, transferred into the discharge hose, and accelerated through the nozzle to form a directional spray.
Mechanical Propulsion
The system does not require external power. Mechanical pressure inside the cylinder provides the driving force for agent transfer. The nozzle geometry controls flow velocity and spray pattern, forming a continuous discharge suitable for surface fire spread rather than point ignition control.
System Structure and Materials
Stainless Steel Cylinder
Material: SUS304 stainless steel sheet
Function: stores extinguishing agent under pressure
Structure: welded pressure vessel with reinforced seams
Valve Assembly
Function: seal / release pressure / control discharge
Includes: safety pin, handle lever, and pressure outlet port
Connection: Connects CO₂ or internal pressurized system (depending on model)
Discharge Hose & Nozzle
Hose Type: Rubber-reinforced hose for high-pressure agent transfer
Nozzle Design: Designed to concentrate flow and resist back-pressure
Trolley Frame
Frame Type: Welded steel frame supporting cylinder load
Mobility: Industrial wheels support movement across warehouse floors and outdoor surfaces
Operating Conditions & Environments
Designed for environments where corrosion and mobility are required:
Coastal warehouses with high humidity and salt exposure
Chemical processing areas with vaporized corrosive gases
Outdoor fuel storage and distribution stations
Manufacturing workshops with mixed fire load materials
Operates within a temperature range between -20°C and +60°C, depending on agent formulation and valve sealing materials. Cylinder wall structure maintains integrity under standard industrial working pressure.
Fire Suppression Function & Behavior
Stores ABC dry powder or foam agent inside the stainless steel cylinder. When activated, pressure transfers the agent through the siphon tube without requiring external pumping.
The discharge forms a continuous flow designed to:
Cover surface fire zones
Transfer powder cloud or foam blanket across burning areas
Reduce oxygen interaction at the flame interface
Suitable for fire spread scenarios involving flammable liquids, solid combustibles, and electrical equipment zones under de-energized conditions.
Maintenance and System Lifecycle Behavior
Maintenance focuses on pressure sealing components and mechanical interfaces:
Valve sealing ring inspection for leakage prevention
Hose integrity check for abrasion or cracking
Nozzle blockage inspection to ensure flow continuity
Cylinder surface inspection for corrosion at weld joints
If pressure loss occurs, it is typically linked to valve seal wear or mechanical damage rather than cylinder structural failure. The stainless steel body reduces corrosion-driven leakage compared to carbon steel systems.
Why Buyers Choose Weimin (Engineering Supply Capability)
Weimin manufactures stainless steel trolley fire extinguishers with controlled cylinder forming, welding, and pressure testing processes for industrial procurement projects. Our reliable supply capability includes:
OEM Branding Support
Custom label, cylinder marking, and commercial packaging tailored for project distributor networks.
Bulk Industrial Orders
Scalable batch production capability optimized for multi-location heavy industrial distribution channels.
Spare Parts Ecosystem
Continuous availability of factory-certified valves, high-pressure hoses, nozzles, and replacement safety pins.
Export-Grade Packaging
Reinforced international transit packing designed strictly for maritime container loading stability.
Technical Approval Documentation
Comprehensive verification paperwork, raw test logs, and design sheets ready for contractor compliance vetting.
Technical Specification Overview
|
Spec |
25kg |
50kg |
50L |
|---|---|---|---|
|
Dia |
φ250 |
φ300 |
φ300 |
|
Min Wall Thick |
2.0mm |
2.5mm |
2.5mm |
|
Temp range |
-20° ~ +60° |
-20° ~ +60° |
-20° ~ +60° |
|
W.P |
18BAR |
18BAR |
18BAR |
|
T.P |
27BAR |
27BAR |
27BAR |
|
Powder 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 |
Frequently Asked Questions
Q1: Why use stainless steel instead of carbon steel?
A: Stainless steel reduces corrosion at cylinder welds and valve threads in humid and coastal environments, improving sealing stability over long storage periods.
Q2: Can the system be used outdoors long term?
A: Yes, SUS304 structure is designed for outdoor installation zones with humidity and salt exposure conditions.
Q3: What maintenance is required?
A: Regular inspection of valve sealing, hose integrity, and nozzle blockage is required. Cylinder surface corrosion risk is significantly reduced by stainless steel material.
Q4: Can OEM branding be applied?
A: Yes, cylinder marking, labels, and packaging can be customized for distributors and project contractors.
Q5: What causes system failure?
A: Typical failure modes include valve seal wear, hose damage, or improper pressure retention due to mechanical damage.
Request a Quotation
Looking for a stainless steel trolley fire extinguisher for coastal projects, chemical plants, warehouses, or industrial fire protection systems?
Weimin provides SUS304 stainless steel cylinder production, OEM customization, spare parts supply, and export packaging support for industrial procurement projects.
Send your required capacity, application environment, and destination market. Technical specifications, drawings, and quotation will be provided based on project requirements.
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