350LB Wheeled Ansul Redline (Purple K)

The Ansul Red Line 350 lb (CR-I-K-350-C) is the most powerful portable fire suppression asset in the Ansul arsenal. Engineered for "Mega-Hazard" environments where a fire involving thousands of gallons of fuel is a statistical possibility, this unit provides a single operator with an unprecedented volume of Purple K (Potassium Bicarbonate) agent.

With a massive UL/ULC rating of 480-B:C, the CR-I-K-350-C is designed to suppress nearly 500 square feet of deep-layer flammable liquid fire in a single discharge. As a cartridge-operated unit, it utilizes external nitrogen cylinders to propel the agent. Built on a rugged steel carriage with oversized wheels, it is the definitive choice for industrial fire protection.

The Physics of Elite Suppression: Purple K Micro-Kinetics

1. Potassium Bicarbonate (Purple K) Interference

Purple K is widely regarded as the most effective dry chemical agent for Class B fires. At a molecular level, it interferes with the "Free Radicals" in the fire's chemical chain reaction. It is approximately twice as effective as sodium bicarbonate, allowing for a faster knockdown. Using a purple K fire extinguisher of this size ensures that even the most aggressive fuel fires are neutralized quickly.

2. Mass-Flow Rate and Thermal Column Penetration

Large-scale fuel fires create massive thermal updrafts that can deflect the agent from a common fire extinguisher. The CR-I-K-350-C is calibrated for high mass-flow, delivering over 350 lbs of agent through a specialized high-volume nozzle. This allows the operator to "punch through" the fire's heat column—a technical feat essential for wholesale fire equipment used in refineries.

3. Dual-Cartridge Fluidization

To move 350 lbs of powder effectively, the unit utilizes high-pressure nitrogen. Upon activation, the gas enters the bottom of the tank, "fluffing" the Purple K powder into a fluid-like state. This prevents "caking" and ensures a consistent discharge, a feature prioritized by fire department supply officers for long-term readiness.

The "Red Line" Advantage: Engineered for Extreme Readiness

• Strategic Mobility: Despite its 922 lb weight, the unit is balanced for rapid deployment. Large-diameter wheels allow a single operator to navigate industrial aisles.
• Extended "Stand-Off" Safety: The unit features a 50-foot reinforced discharge hose. This allows the operator to engage a fire from a distance of up to 40 feet, protecting them from radiant heat.
• Simplified Field Serviceability: After a discharge, the 350 lb Red Line can be recharged on-site. There is no need for a pressurized recharge at a service shop, a massive logistical advantage for fire equipment companies servicing remote oil rigs.

The Ansul CR-I-K-350-C is the primary choice for "High-Volatility" zones where portable fire protection must be absolute:

• Petrochemical Refineries: Protecting manifold areas where a leak can result in a massive 3D fire.
• Fuel Storage Terminals: Providing the high-volume "Kill" required for protecting tank farms.
• Airport Tarmacs: The standard for protecting aviation assets where rapid knockdown is non-negotiable.
• Offshore Rigs: Ideal for protecting loading docks and engine rooms in tight environments.

To maintain NFPA 10 compliance and ensure your facility passes its fire inspection, the CR-I-K-350-C must follow a strict maintenance protocol:

• Monthly Visual Inspection: Verify tires are inflated and nitrogen safety seals are intact. Check that fire extinguisher inspection stickers are up-to-date and visible.
• Annual Maintenance: A certified technician must conduct an internal inspection. This is a much faster and safer process than auditing stored-pressure wheeled units.
• 12-Year Hydrostatic Test: Mandatory to verify the structural integrity of the steel pressure vessel.

Where can I find a fire equipment company for large wheeled units?
You should visit a specialized fire equipment store or an authorized Ansul dealer to ensure proper maintenance of these high-capacity industrial assets.

Is this more effective than a standard 10 lb Purple K unit?
Yes. While a handheld option is great for small spills, the 350 lb unit provides the mass flow needed to suppress nearly 500 square feet of fire.

How do I use the PASS method fire extinguisher technique on this?
The PASS acronym for fire extinguisher use is adapted: Open the nitrogen cylinders, Aim the long-range nozzle, Squeeze the discharge lever, and Sweep the base of the fire from a safe 30-40 foot distance.