Ansul PRX 5 Gallon 423320
The Ansul 423320 is a 5-gallon container of PRX wet chemical agent for ANSUL R-102 restaurant fire suppression systems. PRX is the ANSUL proprietary wet chemical formulation — a potassium-based agent that suppresses Class K cooking oil and grease fires through the combined mechanisms of saponification and rapid cooling. When discharged, PRX reacts with hot cooking oils to form a soapy foam layer that seals the fuel surface and prevents re-ignition, while simultaneously cooling the cooking surface to below the re-ignition temperature of the oil. This makes PRX one of the most effective class k wet chemical fire extinguisher agents available for commercial kitchen fire protection.
The ansulex 3 gallon and PRX product family are the OEM-specified agents for ANSUL R-102 and Piranha kitchen fire suppression systems. Using the correct OEM agent is critical — the ANSUL R-102 system's UL 300 listing is based on specific agent chemistry, viscosity, and flow characteristics that were tested and certified with PRX. Substituting a different wet chemical agent alters the system's hydraulic discharge performance and voids the UL 300 listing, potentially leaving portions of the protected cooking surface without adequate suppression coverage.
For fire protection contractors servicing ANSUL R-102 systems, the 423320 5-gallon PRX container provides sufficient agent for recharging one or more cylinders depending on the system configuration. The ansul 3 gallon tank and larger cylinder configurations used in various R-102 installations each require the correct PRX volume per the ANSUL R-102 system design documentation. After any system discharge, the R-102 piping must be flushed per the ANSUL service manual before recharging with fresh 423320 PRX agent. Available through authorized ansul distributors. Store away from freezing temperatures — PRX's potassium chemistry can crystallize below freezing.
| Feature | Details |
|---|---|
| Manufacturer | ANSUL |
| Part Number | 423320 |
| Agent Type | PRX wet chemical (potassium-based) |
| Volume | 5 gallons |
| Compatible Systems | ANSUL R-102 and Piranha restaurant fire suppression |
| Fire Class | Class K (cooking oils and grease fires) |
| Certifications | UL 300 Listed, NFPA 17A compliant |
Post-Discharge Recharge
After any ANSUL R-102 system discharge, flush the distribution piping per the ANSUL service documentation before recharging with fresh 423320 PRX agent. Do not recharge without flushing — residual PRX agent that has been exposed to heat or combustion byproducts during discharge must be removed before introducing a fresh agent charge. Recharge cylinders with the exact PRX volume specified in the ANSUL R-102 system design documentation for each cylinder model.
6-Year Internal Examination
During the 6-year internal examination per NFPA 17A, discard the existing PRX agent charge and replace with fresh 423320 regardless of apparent condition. Wet chemical agents can degrade in high-temperature kitchen environments over multi-year service intervals. Always replace with fresh OEM PRX agent at the scheduled interval to maintain the system's UL 300 rated suppression performance.
Can I use Karbaloy or Pyro-Chem wet chemical agent instead of PRX?
No. The ANSUL R-102 system is UL 300 listed specifically with PRX agent. Using Karbaloy (Range Guard), Pyro-Chem wet chemical agent, or any other brand's class k wet chemical fire extinguisher agent voids the UL 300 listing and may produce incorrect discharge coverage. The ansul r-102 nozzle chart and ANSUL R-102 system documentation confirm PRX as the only approved agent. Always source from authorized ansul distributors.
Is the ansulex msds available for PRX agent?
Safety Data Sheets (SDS, formerly MSDS) for ANSUL PRX agent are available through authorized ansul distributors and the ANSUL product documentation library. The ansulex msds and PRX SDS provide handling, storage, and disposal information required for occupational safety compliance when working with this wet chemical agent.
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