Task Force Tips TFT Automatic Fog Flush Fire Nozzle Pistol Grip 350 Gpm

  
Task Force Tips TFT Automatic Fog Flush Fire Nozzle Pistol Grip 350 Gpm. The last picture is a sketch of automatic nozzle me mechanism. What is an Automatic Nozzle? An automatic nozzle is a combination firefighting nozzle that contains a spring-loaded baffle. This baffle is able to maintain a specified pressure throughout a wide flow range. This means that as your flow drops, the exit orifice for the nozzle gets smaller and if your flow increases, it gets larger. How Does an Automatic Nozzle Work? For the most part, an automatic nozzle works just like any other combination nozzle. You open, close, and gate the nozzle using the bail handle. You can also adjust your flow pattern like any other combination nozzle. The baffle is where the automatic nozzle differs from other combination nozzles. Image 2 Image 3 Image 4. The baffle for the automatic nozzle has gotten some updates over the years, but the basic concept has stayed the same. The baffle contains a calibrated spring. This spring allows the baffle to move in and out to maintain a specific pressure throughout a flow range.

As explained above, when your flow lowers, the baffled moves to make the exit orifice smaller and maintain the pressure of the nozzle. Likewise, for larger flows the exit orifice gets larger to maintain the pressure.