Pyro-Chem KITCHEN KNIGHT II Restaurant Fire Suppression System
The Pyro-Chem KITCHEN KNIGHT II (by Johnson Controls / Tyco) is a pre-engineered wet chemical restaurant fire suppression system designed for commercial kitchen hoods, exhaust ducts, and cooking appliances, utilizing a potassium carbonate-based agent, automatic fusible link detection, mechanical gas shut-off interlocks, and UL 300 / NFPA 17A compliance.
Note: Listed prices are baseline estimates. Actual project costs depend on total square footage, hazard classification, and specific area containment requirements. Contact our team for a customized quote.
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Description
The KITCHEN KNIGHT II Restaurant Fire Suppression System, manufactured by Pyro-Chem (a Johnson Controls brand), is a pre-engineered automatic fire extinguishing system engineered specifically for commercial, institutional, and industrial food service facilities. Designed to mitigate high-hazard Class K grease and oil fires, the system provides targeted protection for ventilating equipment (hoods, plenums, exhaust ducts, and grease filters) as well as cooking appliances including deep fryers, griddles, range tops, charbroilers, and woks. The system operates by deploying a specialized potassium carbonate-based wet chemical solution stored under pressure. Upon thermal detection via fusible alloy links or manual actuation, the system discharges fine chemical droplets that rapidly knock down flames, cool hot surfaces below auto-ignition temperatures, and react with hot grease to create a saponification foam blanket that prevents reflash. Built for simplified installation and maintenance, it features unbalanced piping network configurations, flexible agent distribution hoses for castered appliances, automatic fuel shut-off interlocks, and full UL 300, NFPA 17A, and NFPA 96 listings.
Features
- High pH Wet Chemical Agent: Discharges a potassium carbonate solution that rapidly knocks down flames and reacts with hot cooking grease to form a saponification foam blanket preventing re-ignition.
- Flexible Flow-Point Options: Offers four cylinder capacities allowing precise hazard coverage from small food truck hoods up to large multi-appliance commercial kitchen lines.
- Dual Independent System Actuation: Features automatic thermal fusible link line detection alongside a dedicated mechanical pull station for emergency manual release.
- Fuel Line Gas Shut-Off: Automatically trips a mechanical or electrical gas shut-off valve upon system actuation to cut off fuel supply to protected appliances.
- Unbalanced Piping Network: Uses simplified unbalanced pipe layouts to streamline installation, fitting easily around existing kitchen workflow and hood structures.
- Blow-Off Nozzle Protective Caps: Equipped with protective chrome caps that prevent grease and dust buildup in discharge nozzles, blowing free automatically during system discharge.
Specifications
- Brand Name: Pyro-Chem (Johnson Controls)
- System Model: Kitchen Knight II Series
- System Type: Pre-Engineered Wet Chemical Restaurant Fire Suppression System
- Extinguishing Agent: Pyro-Chem Potassium Carbonate Wet Chemical Solution
- Cylinder Capacity Options: PCL-160 (1.6 Gal / 5 Flow Points), PCL-300 (3.0 Gal / 10 Flow Points), PCL-460 (4.6 Gal / 15 Flow Points), PCL-600 (6.0 Gal / 20 Flow Points)
- Operating Pressure: Stored pressure at 225 psig (15.5 bar) @ 70°F
- Activation Methods: Automatic Fusible Link Detection, Mechanical Remote Pull Station, and Local Control Head Manual Actuation
- Piping Network: Schedule 40 Black Iron, Chrome-Plated, or Stainless Steel Pipe (Unbalanced piping design)
- Operating Temperature Limit: 0°C to 49°C (32°F to 120°F)
- System Approvals & Compliance: UL 300 Listed, ULC, NFPA 17A, NFPA 96, MEA Approved, CE Marked
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