KiddeFenwal has announced that the performance of its Acoustic Nozzle for the NATURA Inert Gas System has received UL Solutions Verification under ID V445408, with the listing valid until October 8th 2026.
The company shared the update in a LinkedIn post, stating that the verification confirms its performance claims through independent testing by UL Solutions.
The UL listing identifies the product as a sound defusing nozzle designed to lower the sound pressure level of total flooding inert gas fire suppression system discharges.
Typical inert gas system discharges can exceed 110 dB when measured at a distance of 3 feet, according to the product information provided.
The listing states that the acoustic nozzle moderates the sound pressure level to 110 dB or less while maintaining coverage area and radial throw discharge characteristics for use in the Kidde Fire Systems Natura Inert Gas System.
The verified marketing claim specifies 1/3 octave sound pressure less than 110 dB at 3.3 feet – 1 meter – up to 3.03 lb per second – 1.37 kg per second.
UL Solutions conducted testing in accordance with ANSI Standard S12.54-2011 and ISO 3744:2010, using IG-541 as representative of IG-100, IG-55 and IG-01 inert gas fire suppression agents.
The verification applies to multiple acoustic nozzle models, including 3/4 NPT and 1-1/2 NPT configurations, as well as 3/4 BSP and 1-1/2 BSP versions, each identified by specific part numbers in the UL listing.
UL Verification is described in the listing as an objective, science-based assessment that confirms the accuracy of specific marketing claims following an independent review process.
The listing notes that certain product information was provided by Kidde-Fenwal and may contain details outside the scope of the claim verification.
