20LB Ansul Redline Cartridge (High Flow & Corrosion Resistant) (FORAY)

The Ansul Red Line CR-HF-I-A-20-G-1 is a premium, cartridge-operated fire extinguisher engineered for the most aggressive industrial fire scenarios in corrosive environments. In environments where flammable liquids are under pressure or high-piled combustibles create massive heat signatures, a standard discharge rate is often insufficient to knock down the flame front. This High Flow model is specifically designed to discharge its FORAY ABC dry chemical agent at an accelerated rate, exceeding the one-pound-per-second delivery rate recommended for high-hazard Class B fires while providing Class A and C protection.

Built as part of the Industrial series, this model features enhanced corrosion resistance, making it the definitive choice for offshore platforms and chemical refineries. The CR designation adds a corrosion-resistant finish over the standard polyester powder coat with black anodized hardware throughout, protecting against salt air, chemical vapor, and the aggressive environments where the standard finish deteriorates prematurely. By isolating the propellant in an external nitrogen cartridge, the Red Line system eliminates the risk of gradual pressure loss that can silently compromise stored-pressure units.

The Physics of High-Flow Suppression: Overcoming 3D Fire Dynamics

1. Mass Flow Rate Advantage

Standard extinguishers prioritize discharge duration. The HF designation means this unit is calibrated to discharge its 20 lbs of agent rapidly. This high mass-flow rate is essential for three-dimensional fires where fuel may be leaking from an overhead pipe. The high-velocity cloud overcomes thermal updrafts to deliver the agent directly to the fuel source.

2. FORAY ABC Chemical Kinetics

FORAY is Ansul's monoammonium phosphate-based agent. On Class A fires, it undergoes sintering at approximately 350°F — melting to form a molten crust that smothers embers and prevents re-ignition. On Class B fires, it interrupts the chemical chain reaction. Because this unit is High Flow, it delivers a higher concentration of this suppression chemistry per second than a standard-flow unit.

3. Pressure-on-Demand Reliability

In a cartridge-operated system, the agent remains unpressurized and free-flowing until the moment of activation. When the plunger is struck, the gas fluidizes the powder, ensuring a consistent, high-energy discharge. This prevents the agent packing that can cause failure in units subjected to constant vibration on haul trucks or heavy machinery.

The Industrial Series Advantage: Engineered for Harsh Environments

• Corrosion-Resistant Coating: The tank is treated with a specialized finish designed to withstand salt spray and chemical vapors, preventing structural pitting that leads to failed inspection results in marine and coastal environments.
• Pressure Indicator Fill Cap: This specialized cap provides visual confirmation of readiness and ensures the internal components remain sealed from environmental contaminants.
• Field-Serviceable Architecture: A technician can recharge the unit on-site in minutes — a significant logistical advantage for remote sites that cannot wait for off-site service.

The CR-HF-I-A-20-G-1 is the primary choice for high-risk zones where portable ABC fire protection must be immediate in corrosive environments:

• Mining and Heavy Equipment: Mounted on excavators and haul trucks where suppression must overcome hydraulic fluid fires and the corrosion-resistant finish handles the harsh outdoor environment.
• Oil and Gas Refineries: Protecting manifold areas where pressure-fed fuel leaks are a primary risk and ordinary combustibles require Class A coverage alongside BC protection.
• Chemical Processing: Providing multipurpose ABC defense for facilities with electrical, liquid, and solid combustible hazards in chemically aggressive atmospheres.
• Aviation Fueling: Meeting the high-flow requirements for rapid knockdown in hangars where Class A materials coexist with aviation fuel hazards.

To maintain NFPA 10 compliance, the CR-HF-I-A-20-G-1 must follow a strict maintenance protocol:

• Monthly Visual Inspection: Verify the activation plunger is in the up position and the safety seal on the cartridge is intact. Inspect the CR finish for chips or corrosion breakthrough. Confirm inspection tags are current.
• Annual Maintenance: A certified technician must conduct an internal inspection. The fill cap can be removed to verify agent fluidity — a much faster process than stored-pressure audits.
• Cartridge Weight Verification: During every service, the gas cartridge must be weighed to confirm no propellant has leaked.
• 6-Year Internal Examination: Full internal inspection per NFPA 10 including agent removal and cylinder interior inspection.
• 12-Year Hydrostatic Test: Mandatory to verify structural integrity of the steel pressure vessel.

Where can I find service and genuine agent for High Flow FORAY units?

Visit a specialized fire equipment company or an authorized Ansul dealer. They can provide the correct modified technical FORAY agent and nitrogen cartridges for large-scale industrial outfitting of this unit.

Can I use FORAY ABC on a grease fire in my kitchen?

While Class B rated, the high-velocity discharge will splash burning oil and the dry chemical will not provide the saponification and cooling that a Class K agent delivers. For commercial kitchens, always use a Class K wet chemical extinguisher on cooking oil fires.

What is the best way to train industrial staff on this unit?

Focus on the standard PASS method but emphasize the activation step specific to cartridge-operated units: strike the plunger firmly first to pressurize the tank, then Aim, Squeeze, and Sweep. Ensuring staff understand this step prevents hesitation during an emergency.