Buckeye BFR-AC-L Nitrogen Cartridge (2 Pack)

The Buckeye BFR-AC-L Nitrogen Cartridge (Part No. BFR-AC-L) is a high-performance pneumatic engine designed for the Buckeye Kitchen Mister fire suppression system. Known as the Large actuation cartridge, the BFR-AC-L serves as the critical energy source required to trigger up to five agent cylinders simultaneously. While smaller configurations may utilize the S model, industrial-scale cook lines such as those in hospitals and university cafeterias require the higher gas volume and pressure profile of this industrial-strength propellant.

This cartridge operates via pneumatic pulse hydraulics, where a firing pin punctures the diaphragm to release dry nitrogen. The expansion provides the necessary pressure to overcome the spring tension of multiple system valve actuators. By utilizing high-purity, moisture-free nitrogen, the BFR-AC-L prevents internal corrosion while ensuring consistent performance across extreme temperature gradients. The 10-turn seating precision of this threaded vessel ensures a gas-tight seal, allowing for a full release within the first 500 milliseconds of actuation.

The BFR-AC-L must be installed by a certified fire suppression technician in accordance with the Buckeye Kitchen Mister system design manual and NFPA 17A. Before installation, the cartridge must be verified against the factory-stamped gross weight. Thread the cartridge using the full 10-turn seating sequence to ensure a gas-tight seal; under-tightening is a leading cause of incomplete actuation or gas bypass during discharge.

The BFR-AC-L is a single-use sealed vessel. Once punctured, it must be replaced with a fresh cartridge before the system can be re-armed. It must not be refilled, reused, or substituted with non-OEM cartridges, as doing so violates the system's UL 300 listing and NFPA 17A compliance. During each semi-annual inspection, the cartridge must be removed and weighed. Any deviation from the factory-stamped weight indicates a slow leak and requires immediate replacement to prevent a non-discharge event.

What is the hydraulic difference between the BFR-AC-L and the BFR-AC-S?

The BFR-AC-S is a light-duty propellant for 1 to 3 cylinders, ideal for kiosks or food trucks. The BFR-AC-L is engineered for high-volume V-bank hoods and multi-appliance lines (4 to 5 cylinders), providing the additional pressure needed to overcome friction loss in longer actuation runs.

Why is the BFR-AC-L sold as a 2-pack?

Standardizing on a 2-pack allows service professionals to manage dual-system hoods or maintain an immediate, OEM-certified backup. Having a second cartridge on-site ensures a kitchen can be re-armed instantly after a minor discharge, preventing red-tag closures and business downtime.

How does dry nitrogen improve system reliability over CO2?

Unlike CO2, high-purity nitrogen is non-reactive and maintains stable pressure regardless of ambient kitchen temperature. This stability ensures the system's firing force remains constant during peak dinner rushes, while its moisture-free properties protect the releasing module from internal oxidation.