Badger Range Guard GRW Nozzle, (10 Pack) - 87-120018-001

The Badger Range Guard GRW Nozzle (P/N 87-120018-001) is the precision-engineered discharge endpoint for the Range Guard wet chemical fire suppression system. The "GRW" designation -- Griddle, Range, and Wok -- indicates a specific flow characteristic and spray geometry designed to neutralize high-temperature grease fires. Unlike universal nozzles, the GRW is specifically tuned to deliver the Karbaloy suppression agent at a velocity and pattern that prevents the splatter effect common with high-pressure discharge into hot oil.

Maintaining the UL 300 listing of a Range Guard system requires absolute adherence to OEM design. Each GRW nozzle is a calibrated component that ensures the system's hydraulic flow point balance remains intact across the entire pipe run. Utilizing genuine Badger parts guarantees that in the moment of ignition, the agent is atomized correctly to initiate chemical suppression across the full cooking battery.

Karbaloy Atomization and Saponification

The GRW nozzle breaks the liquid Karbaloy agent -- a potassium carbonate-based solution -- into a fine, high-velocity mist that increases total surface area for rapid heat absorption. When this alkaline agent contacts burning fat or oil (a triglyceride), a saponification reaction occurs: the potassium carbonate reacts with the fat to produce a thick, soapy foam layer that floats on the grease surface. This foam simultaneously cuts off the oxygen supply, suppresses flammable vapor release, and provides a cooling effect that prevents re-ignition. The nozzle geometry ensures droplets have enough kinetic energy to penetrate the heat plume without disrupting the burning fat surface in a way that would spread the fire.

Hydraulic Flow Point Integrity

Every Range Guard system is designed to a specific flow point capacity. The GRW nozzle carries a precise flow point rating that maintains the pressure balance of the entire pipe run. Substituting a non-OEM nozzle can result in a starved nozzle at the end of the line or an over-pressurized discharge causing dangerous splashing. The internal bore is machined to tight tolerances, ensuring consistent flow rates across all units in a multi-nozzle array and eliminating coverage dead zones over large griddles.

Corrosion-Resistant Metallurgy

The 87-120018-001 is machined from a corrosion-resistant metal alloy suited to the high-humidity, high-alkaline environment of a commercial hood. This prevents pitting and oxidation scaling that would otherwise distort the spray pattern and compromise the system's hydraulic calculations over time.

Orifice Obstruction Audit

At every semi-annual service, each GRW nozzle must be inspected for carbonized grease buildup. A partially blocked orifice will distort the spray pattern and invalidate the system's hydraulic design. Any nozzle showing internal corrosion should be replaced rather than cleaned.

Mandatory Tip Protection

Each nozzle must be fitted with a foil seal or rubber blow-off cap to maintain a zero-clog status. During discharge, agent pressure instantly ruptures the seal. Missing or grease-laden protectors must be replaced immediately at every inspection.

Targeting and Alignment

Technicians must use a dedicated aiming tool to ensure the GRW nozzle is pointed exactly at the center of the protected appliance. Even a 5-degree deviation can result in insufficient coverage, constituting a violation of NFPA 17A compliance standards.

Replace vs. Clean Protocol

Light surface grease can be carefully cleaned, but any nozzle with internal corrosion must be discarded and replaced with a fresh unit from the 10-pack. The cost of replacement is negligible compared to the liability of a suppression failure during a fire event.

Can I use these nozzles on a Badger dry chemical system?

No. Dry chemical systems use completely different flow dynamics. The GRW nozzle is engineered for the viscosity of liquid Karbaloy agent. Using it on a dry chemical system will result in an immediate clog and system failure.

How do I distinguish the GRW nozzle from other Range Guard nozzles?

The GRW nozzle is identified by its specific internal machining and the "GRW" stamping on the body. Always cross-reference part number 87-120018-001 with your system's as-built drawings to confirm you are not installing an F-style or A-style nozzle in a griddle application.

Why is the 10-pack the preferred choice for service contractors?

Purchasing the 10-pack ensures inventory consistency. When servicing a large kitchen, replacing all nozzles on a single line from the same batch guarantees perfectly matched flow characteristics and simplifies documentation for the fire marshal's report.