Dry Chemical Fire Extinguisher Amerex B424 5 lb ABC (Model 15267)
By upgrading the valve construction to heavy-duty chrome-plated brass, Amerex eliminates the risk of thread-binding and valve corrosion common to aluminum assemblies exposed to high humidity, marine salt spray, or chemical washdowns. Inside, it utilizes a highly fluidized and siliconized monoammonium phosphate dry chemical agent. This compound acts quickly to insulate Class A fires, smother Class B liquid spills, and safely suppress Class C live electrical fires without conducting electrical currents back to the operator.
📊 Comprehensive Technical Specifications
Compare the exact engineering specifications of the Amerex B424 to satisfy your facility’s safety audit requirements:
| Engineering Parameter | Certified Benchmark Value |
| Model Number / MPN | B424 / 15267 |
| UL & ULC Rating | 2-A:10-B:C |
| Agent Capacity | 5 lbs (2.27 kg) |
| Valve Material | Heavy-Duty Chrome-Plated Brass |
| Handle & Lever | Corrosion-Resistant Stainless Steel |
| Cylinder Material | Stored-Pressure Drawn Steel with Polyester Powder Paint |
| Discharge Time | 14 Seconds |
| Discharge Range | 12 to 18 Feet |
| Operating Pressure | 195 PSI |
| Temperature Range | -65 degrees Fahrenheit to 120 degrees Fahrenheit |
| Approvals | ANSI/UL, ULC, NFPA 10, USCG Approved (with bracket) |
| Mounting Hardware | Standard Wall Bracket Included |
⚙️ What Makes the B424 the Industry Standard?
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All-Metal Valve Integrity: The brass valve assembly, paired with stainless steel pull pins and levers, ensures smooth, jam-free operation under emergency pressure.
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USCG Marine Approval: When paired with an approved marine vehicle bracket, the Amerex B424 is fully Coast Guard approved for installation on pleasure craft and commercial workboats alike.
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6-Year Manufacturer Warranty: Backed by Amerex’s industry-leading professional warranty, assuring long-term support, easy field serviceability, and simple, economic recharging.
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High-Visibility Stored Pressure Gauge: Allows safety officers to conduct rapid visual monthly inspections to ensure the unit is fully charged and operational.
🛡️ OSHA & NFPA 10 Compliance Guidelines
Under the strict codes of NFPA 10 (Standard for Portable Fire Extinguishers), any commercial workspace utilizing the Amerex B424 must adhere to these simple maintenance baselines:
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Visual Monthly Inspections: Verify the pressure gauge needle sits in the green operating zone, the safety pull pin is locked in place, and the nozzle remains free of obstructions.
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Annual Maintenance: A certified fire protection professional must inspect the unit internally and externally every year, signing and dating the physical inspection tag.
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6-Year Maintenance & 12-Year Hydrotest: Stored pressure dry chemical extinguishers must be emptied and subjected to a full internal service every 6 years, and hydrostatic pressure-tested every 12 years to verify cylinder structural integrity.
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