2.5LB ANSUL SENTRY A02SVB - Fire Extinguisher

The Ansul Sentry A02SVB (Part No. 429000) is a professional-grade, 2.5 lb ABC dry chemical fire extinguisher engineered for environments where space is at a premium but reliability cannot be compromised. While many 2.5 lb extinguishers found in retail stores are disposable plastic-head units, the Sentry A02SVB is a fully rechargeable, stored-pressure unit built to Ansul's commercial standard. It is designed to provide immediate suppression of Class A, B, and C fires in confined spaces such as vehicle cabs, equipment compartments, and small mechanical rooms.

Constructed with a seamless high-strength steel cylinder factory-tested to 600 PSI, this unit is built to withstand the unique stresses of mobile applications — constant vibration, temperature swings, and physical impacts. The agent is siliconized to ensure it remains fluidized and does not pack down from road vibration, a common failure mode in vehicle-mounted extinguishers. It carries a 6-year limited warranty and is UL listed and USCG approved.

Triple-Class Suppression in a Compact Format

The A02SVB utilizes the same high-performance monoammonium phosphate agent found in Ansul's larger industrial units, siliconized to prevent packing in high-vibration environments:

• Class A (Ordinary Combustibles): The agent creates a chemical crust that smothers flames and cools the fuel source in wood, paper, and cloth fires, preventing deep-seated re-ignition.
• Class B (Flammable Liquids): Provides rapid knockdown of gasoline, oil, and solvent fires — essential for service vans, forklifts, and engine compartments.
• Class C (Electrical Equipment): The non-conductive agent allows the operator to safely suppress fires in energized wiring, battery compartments, and electronic control panels without risk of electrical shock.

Ansul Sentry Advantage: Engineering for Mobile Safety

• Seamless Steel Cylinder: Deep-drawn from a single piece of high-tensile steel, eliminating the weak points where corrosion and pressure leaks begin in seamed cylinders. Factory air-tested to 600 PSI.
• Anodized Aluminum Valve: All-metal valve construction with corrosion-resistant anodized aluminum body and plated steel handles — will not become brittle or snap during an emergency the way plastic-head models can.
• Large-Format Pressure Gauge: High-contrast, easy-to-read gauge provides instant status verification during daily vehicle and vessel inspections.
• 6-Year Limited Warranty: Ansul's 6-year limited warranty from date of delivery to the original end-user purchaser.

The 2.5 lb capacity of the A02SVB is specified for facilities and fleets prioritizing portability and point-source protection:

• Forklifts and Material Handling: Ideal for mounting on the ROPS of forklifts where a larger 5 lb unit would obstruct the operator's view.
• Service Vans and Fleet Trucks: Meets DOT requirements for commercial vehicles without consuming valuable cargo space.
• Boats and Marine Use: USCG approved when used with a proper vehicle and marine bracket, providing critical protection for engine compartments and galleys on small vessels.
• Offices and Retail Counters: Suitable for discreet mounting under desks or retail counters for quick-access suppression of small point-source fires.
• Residential Garages and Workshops: Provides a professional-grade rechargeable option for homeowners who want industrial reliability in a compact size.

To maintain NFPA 10 compliance, the A02SVB must follow a standard maintenance protocol:

• Monthly Visual Inspection: In vehicle applications, verify the pressure gauge is in the green zone, the safety pin is present, and the unit is securely seated in its bracket. Confirm inspection tags are current.
• Annual Maintenance: A certified fire equipment professional must perform an external examination and verify the chemical's fluidity, especially in high-vibration environments.
• 6-Year Internal Service: The unit must be emptied and inspected internally to check for signs of pitting or seal degradation per NFPA 10.
• 12-Year Hydrostatic Test: The seamless steel cylinder must undergo a high-pressure test to verify continued structural integrity.
• Mounting Requirement: For vehicles and marine vessels, the A02SVB must be mounted in Ansul vehicle bracket Part No. 429146 to prevent the unit from becoming a projectile in a collision and to satisfy USCG approval requirements.

Is a 2.5 lb extinguisher sufficient for my business?

The A02SVB is designed for light hazard or supplemental point-source protection. If your fire risk involves large amounts of flammable liquids or high-piled storage, look at the Ansul Sentry 5 lb or 10 lb models. The 2.5 lb size is the correct choice for engine bays, vehicle cabs, and small confined spaces where you can reach the fire immediately at its point of origin.

Can I recharge this myself after use?

No. Fire extinguishers must be recharged by a certified fire protection technician with specialized equipment to properly pressurize the cylinder and ensure the agent is free of moisture. Using an improperly recharged unit is a safety risk and voids the UL listing.

Is this unit USCG approved?

Yes, when mounted in Ansul vehicle bracket Part No. 429146. The USCG approval applies only when the unit is properly mounted — an unbracketed unit does not satisfy USCG marine vessel requirements.