Direct pressure nozzle delivers finer spray
A
BETE product story
Edited by the Engineeringtalk editorial team
Mar 27, 2003
The MicroWhirl is a new spray nozzle specifically designed for fire suppression applications.
The MicroWhirl is a new spray nozzle specifically designed for fire suppression applications.
Delivering the finest atomisation of any direct pressure nozzle, the sprayer is highly efficient, inherently clog resistant, and is ideally suited for protecting areas containing electrical, electronic and other sensitive equipment, as well as for Halon replacement systems.
Consisting of a nozzle manifold and one to seven removable nozzles, the Bete MicroWhirl delivers extreme atomisation for high pressure, water mist fire suppression systems.
Typically producing 8000 times more droplets - with 20 times more surface area - than a conventional sprinkler system operating under the same conditions, the MicroWhirl's droplets remain suspended for a far greater time, and produce a much higher rate of heat absorption.
The extremely fine droplets are also quickly vaporised when exposed to fire, increasing in volume 1600 times, and reducing the concentration of oxygen by diluting it with inert water vapour.
With a sophisticated pinless design, the MicroWhirl eliminates the presence of drips that typically occur with impingement nozzles.
Available with an optional safety wire hole for extra protection in extreme conditions, each nozzle comes with a 70-micron polypropylene filter to prevent clogging, necessitating only minimal maintenance.
Delivering a narrow drop size spectrum in a cone-shaped spray pattern - with 90-degree spray angle - the MicroWhirl requires a minimum operating pressure of 70bar with flow rates of 0.105 to 0.255 litre/min.
Available in 0.25, 0.125 or 0.375in-24UNF versions, the nozzles are manufactured in hard-wearing 303 and 316 stainless steel with a polypropylene filter and viton O-ring seal.
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