Pyro-Chem RL160 Wet Chemical 1.6Gal 553176

The Pyro-Chem RL-160 (P/N 553176) is the OEM wet chemical recharge agent for smaller Pyro-Chem Kitchen Knight II restaurant fire suppression system configurations, providing 1.6 gallons of agent in a single container. This is the smaller of the two standard Kitchen Knight II recharge volumes: the 3-gallon RL-300 (P/N 551188) serves larger tank configurations, while the 1.6-gallon RL-160 serves the PCL 160 cylinder and the KS-6000 portable K-class extinguisher (P/N 552055).

Like the RL-300, the RL-160 is a potassium carbonate-based wet chemical solution. When discharged, the agent knocks down flame, cools the hot grease surface, and reacts with it through saponification to form a soap-like foam layer that seals the fuel and inhibits re-ignition. The 1.6-gallon container provides exactly one complete tank charge for compatible Kitchen Knight II cylinder configurations, simplifying the recharge process without the risk of overfilling or underfilling.

The Kitchen Knight II system is UL listed with the RL-160 agent for these specific cylinder configurations. Using a different wet chemical agent, even one that is potassium-based and UL listed in its own system, voids the listing because suppression performance is certified as a matched set between the agent chemistry, the tank volume, and the nozzle configuration. Only OEM RL-160 should be used when recharging RL-160 compatible configurations.

Recharging must be performed by a certified Pyro-Chem distributor following the Kitchen Knight II system's recharge and maintenance manual.

• Post-Discharge Recharge: After any system actuation, the tank must be refilled with RL-160 before the system is returned to service.
• Confirm Tank Configuration: Use RL-160 only for PCL 160 cylinder configurations and the KS-6000 portable extinguisher. Larger Kitchen Knight II system tanks use the 3-gallon RL-300 (P/N 551188). Confirm the correct agent volume with your system's design documentation before recharging.
• OEM Agent Only: Only Pyro-Chem RL-160 (P/N 553176) should be used for RL-160 compatible configurations. Substituting a different wet chemical agent voids the system's UL listing.
• 12-Year Maintenance Examination: At the required 12-year service interval, the agent tank is internally inspected. If agent condition warrants, the tank is drained and refilled with fresh RL-160 before the system is returned to service.

What is the difference between RL-160 and RL-300?

Both are Pyro-Chem OEM potassium carbonate-based wet chemical agents for the Kitchen Knight II system. The distinction is volume and the cylinder configuration each is designed for. RL-160 provides 1.6 gallons for smaller PCL 160 cylinder configurations and the KS-6000 portable extinguisher. RL-300 provides 3 gallons for larger system tank configurations. Always match the recharge agent to the specific cylinder configuration specified in your system documentation.

Can I use RL-300 instead of RL-160 if I just use less of it?

No. The recharge procedure requires filling the tank to the specified volume using the agent container that matches that configuration. Do not attempt to measure partial quantities from a larger container. The RL-160 container provides exactly the correct volume for compatible configurations and eliminates measurement error.

Who can perform the recharge?

Only a certified Pyro-Chem Kitchen Knight II distributor may perform the recharge. The recharge involves pressurized system components and requires the correct tools, procedures, and post-service verification testing.