Ansul P41 Nozzle - 442153
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Wholesale PricingThe Ansul P41 (P/N 442153) is the discharge nozzle for the Ansul PIRANHA dual-agent fire suppression system -- the only dual-agent kitchen suppression platform on the market. Where standard wet chemical systems rely solely on saponification, the PIRANHA system adds a secondary water cooling phase. The P41 is engineered to handle both the viscosity of the PRX liquid agent and the flow requirements of the cooling water, delivering a two-stage suppression sequence through a single high-proximity nozzle.
Two-Phase Suppression Sequence
In Phase 1, the P41 discharges the PRX liquid agent, which reacts with burning grease to form a foam blanket that excludes oxygen and initiates chemical knockdown. In Phase 2, the nozzle transitions to a water spray calibrated to rapidly lower the oil temperature below its auto-ignition point. The nozzle geometry ensures the water is properly atomized to maximize heat absorption without the splatter effect that occurs with poorly atomized discharge onto hot oil.
High-Proximity Placement
The P41 is designed for placement closer to the cooking surface than standard nozzles. This proximity delivers a more concentrated and accurate discharge, neutralizing the fire at the source before it can migrate into the hood plenum. Mounting height must be verified against the Ansul PIRANHA design manual -- the tip-to-appliance distance must fall within the tested range for both phases to perform correctly.
| Feature | Details |
|---|---|
| Manufacturer | Ansul |
| Part Number | 442153 (Nozzle: P41) |
| System Compatibility | Ansul PIRANHA Dual-Agent only |
| Agent Delivery | PRX liquid agent + water (two-phase) |
| Inlet Design | Dual-inlet (chemical supply + water supply) |
| Material | High-grade corrosion-resistant alloy |
| Required Cap | Ansul metal blow-off cap P/N 427017 |
| Compliance | UL 300, NFPA 17A, NFPA 96 |
Metal Blow-Off Cap (P/N 427017)
Every P41 must be fitted with a genuine Ansul metal blow-off cap. Because the nozzle is mounted close to the grease source, the dual orifices are highly susceptible to carbonization. The metal cap protects the precision-machined outlets and is designed to eject instantly under nitrogen actuation pressure during a discharge event.
Semi-Annual Alignment Audit
During the mandated 6-month inspection, use an aiming tool to verify the P41 is targeting the appliance center. Even a 5-degree misalignment can create shadow zones where the cooling water phase fails to reach the hottest part of the oil surface, risking re-flash.
Orifice Hygiene
The dual-agent nature of the 442153 means any internal obstruction can disrupt the ratio of chemical agent to water. If the nozzle shows signs of internal carbonization or gunking, it must be replaced. Attempting to clear a clogged P41 in the field risks altering the orifice geometry and invalidating the system's UL 300 listing.
Can the P41 nozzle be used with the Ansul R-102 system?
No. The 442153 is designed specifically for the dual-agent manifold of the PIRANHA system. The R-102 is a single-agent system with different nozzle profiles and hydraulic calculations. Mixing these parts voids the UL listing of both systems.
Why does the P41 have two inlets?
The dual-inlet design keeps the nozzle simultaneously connected to the PRX chemical agent supply and the facility's water supply. This allows the suppression network to transition seamlessly from chemical knockdown to water cooling without requiring a separate nozzle for each phase.
Does the P41 require a specific mounting height?
Yes. The P41 is a high-proximity nozzle with tested tip-to-appliance distance requirements. Technicians must consult the Ansul PIRANHA design manual to confirm the installation height is within the approved range before commissioning.
