Automatic nozzles
Download
1 / 12

Automatic Nozzles - PowerPoint PPT Presentation


  • 453 Views
  • Updated On :

Automatic Nozzles. Hand Held Stream Evolution. 1960’s & 70’s Automatic pressure regulating nozzles invented. Pressure Regulation Concept. How Does Pressure Regulation Work?. Pressure Stays Constant as Flow Changes. Baffle Opens as Flow Increases.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Automatic Nozzles' - tannar


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Hand held stream evolution l.jpg
Hand Held Stream Evolution...

  • 1960’s & 70’s

  • Automatic pressure regulating nozzles invented






Nozzle pressure automatic fixed flow nozzles l.jpg
Nozzle PressureAutomatic & Fixed Flow Nozzles



Automatic nozzle benefits l.jpg
Automatic Nozzle Benefits...

  • Consistent hard-hitting streams

  • Correct nozzle pressure with available flow

  • Maximum reach with available water

  • Able to adjust to varying water supply conditions

  • Nozzle reaction is a direct indication of flow

  • Nozzle flow control (with slide valve)


Disadvantages of automatic nozzles l.jpg
Disadvantages of Automatic Nozzles...

  • Higher initial cost

  • Design unfamiliar to repair personnel

  • May not provide adequate water at extremely low pressures

  • Stream may look good, but may not be providing adequate water for extinguishment or protection

  • The need for a Standard Operating Guideline for minimum pump pressures


Comparison of reaction @ 150 gpm l.jpg

Nozzle Reaction

Nozzle Pressure

75 psi 67.5 lb/f

100 psi 79.2 lb/f

125 psi 88.5 lb/f

150 psi 97.2 lb/f

Comparison of Reaction@ 150 GPM