Pyro-Chem RL300 Wet Chemical 3Gal 551188
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Wholesale PricingThe Pyro-Chem RL-300 (P/N 551188) is the OEM wet chemical agent used to recharge Pyro-Chem Kitchen Knight II restaurant fire suppression systems. Each container holds 3 gallons of the proprietary RL-300 liquid agent, which is exactly the volume required to refill one Kitchen Knight II system tank after a discharge or during scheduled maintenance when the agent must be replaced. The container is shipped ready to use and provides one complete tank charge.
The RL-300 formula is a potassium carbonate-based wet chemical solution designed specifically for the grease and cooking oil hazards found in commercial kitchen environments. When the system discharges, the agent suppresses flame and cools the hot grease surface, then reacts with it through saponification, converting the surface layer into a soap-like foam that seals the fuel and inhibits re-ignition. This dual mechanism of flame knockdown and surface sealing is what makes wet chemical the required agent type under NFPA 17A and NFPA 96 for cooking appliance fire suppression systems, rather than dry chemical or CO2.
Why the OEM Agent Matters
The Kitchen Knight II system is UL listed with the RL-300 agent specifically. Using a different wet chemical agent, even one that is also potassium-based and UL listed for kitchen use in its own system, voids the system's listing for the Kitchen Knight II because flow rates, nozzle coverage, and suppression performance are certified as a matched set between the agent, the tank design, and the nozzle configuration. Only the OEM RL-300 agent should be used in a Kitchen Knight II system recharge.
| Feature | Details |
|---|---|
| Manufacturer | Pyro-Chem (A Johnson Controls Brand) |
| Part Number | 551188 |
| Agent Name | RL-300 Wet Chemical |
| Agent Type | Potassium-Based Wet Chemical Solution |
| Volume | 3 Gallons (One Complete Tank Charge) |
| System Compatibility | Pyro-Chem Kitchen Knight II Restaurant Fire Suppression System |
| Hazard Suitability | Commercial Kitchen Cooking Appliances, Grease, and Cooking Oils |
| Mechanism | Cooling and Saponification (Surface Sealing) |
Recharging a Kitchen Knight II system with RL-300 must be performed by a certified Pyro-Chem distributor following the system's recharge and maintenance manual. The following service triggers apply:
- Post-Discharge Recharge: After any system actuation, the tank must be refilled with RL-300 before the system can be returned to service.
- 12-Year Maintenance Examination: The agent tank is also inspected internally at the 12-year service interval. If the agent has degraded, the tank must be drained, cleaned, and refilled with fresh RL-300 before the system is returned to service.
- OEM Agent Only: Only Pyro-Chem RL-300 (P/N 551188) may be used in a Kitchen Knight II system recharge. Substituting a different wet chemical agent voids the system's UL listing.
Can I use a different brand of wet chemical agent to recharge my Kitchen Knight II system?
No. The Kitchen Knight II system is UL listed with the RL-300 agent as part of a matched system. A different agent, even a potassium-based wet chemical that is listed in its own system, has not been tested and certified with the Kitchen Knight II nozzle configuration and flow parameters. Using a different agent voids the listing.
Does one container fully recharge a Kitchen Knight II tank?
Yes. A single 3-gallon container of RL-300 (P/N 551188) provides one complete tank charge for a Kitchen Knight II system tank. Your certified distributor will confirm this matches the specific tank size in your system before recharging.
Can I store leftover agent for later use?
Wet chemical agents have a shelf life and storage requirements outlined in the product's SDS. Check the container for storage temperature requirements and use-by information, and contact your certified distributor if you have questions about storing partially used or unused containers.
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