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FIREFIGHTING NOZZLES and FIRE HYDRAULICS presented by: Task Force Tips / KK Products presented by: Task Force Tips / KK Products.

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Presentation on theme: "FIREFIGHTING NOZZLES and FIRE HYDRAULICS presented by: Task Force Tips / KK Products presented by: Task Force Tips / KK Products."— Presentation transcript:

1 FIREFIGHTING NOZZLES and FIRE HYDRAULICS presented by: Task Force Tips / KK Products presented by: Task Force Tips / KK Products

2 FIREFIGHTING NOZZLES and FIRE HYDRAULICS An overview of basic nozzle design and the production of effective fire streams.

3 Today’s Fire Service...  Providing more diverse services  Less personnel  Training demands increased  Fire streams training less frequent  Foam training considered costly  10% of fires results in 90% of losses  Fire streams training is still needed  Providing more diverse services  Less personnel  Training demands increased  Fire streams training less frequent  Foam training considered costly  10% of fires results in 90% of losses  Fire streams training is still needed

4 FIREFIGHTING NOZZLES and FIRE HYDRAULICS  Hand Held Stream Evolution  Fixed & Selectable Flow Nozzles  Automatic Nozzles  Valve Design  Fire Ground Hydraulics  Nozzle Pressure  Hand Held Stream Evolution  Fixed & Selectable Flow Nozzles  Automatic Nozzles  Valve Design  Fire Ground Hydraulics  Nozzle Pressure  Shaping the Fire Stream  Fog Tooth Design  Smooth Bore vs. Combination  Fire vs. Water Flow  Achieving Maximum Flows  Nozzles & Foam  Master Stream Nozzles

5 A Fire Stream is... A stream of water or other water- based extinguishing agent, after it leaves the nozzle until it reaches the desired target

6 Hand Held Stream Evolution

7 Hand Held Stream Evolution... 1700 - early 1800’s  Water moved from source to fire manually  No hose capabilities  No pumping capability and therefore no pressure 1700 - early 1800’s  Water moved from source to fire manually  No hose capabilities  No pumping capability and therefore no pressure

8 Hand Held Stream Evolution... Early 1800’s  Hand pumps  Sewn leather or riveted hose  Very limited pressure capabilities  Appliances/nozzles of cast copper or brass Early 1800’s  Hand pumps  Sewn leather or riveted hose  Very limited pressure capabilities  Appliances/nozzles of cast copper or brass

9 Hand Held Stream Evolution... Late 1800’s  Cotton woven hose developed  More Power - The Age of Steam  Mechanical means for developing pressure not based on human power  Pressure now easily available Late 1800’s  Cotton woven hose developed  More Power - The Age of Steam  Mechanical means for developing pressure not based on human power  Pressure now easily available

10 Basic Water Moving Capabilities of the Fire Pumper Have Not Changed in 100 Years! 750-1000 GPM 150-200 PSI Pressure easily created Additional capacity has increased only as overall truck power has increased 750-1000 GPM 150-200 PSI Pressure easily created Additional capacity has increased only as overall truck power has increased

11 Hand Held Stream Evolution... 1900’s  Large variety of nozzles, playpipes and appliances made, all based on fixed “hole size”  Problem of coordination between pump operator and nozzle operator  Limited to only one correct flow, calculated by pump operator 1900’s  Large variety of nozzles, playpipes and appliances made, all based on fixed “hole size”  Problem of coordination between pump operator and nozzle operator  Limited to only one correct flow, calculated by pump operator

12 The purpose of any nozzle is to restrict flow to build pressure. This creates a usable velocity to project the water stream.


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