Ultra High Pressure
Vehicle Fire: UHP is More Effective and More Efficient · Nichols Fire Department, Long Hill Fire Department and Stepney Fire Department
Customer Testimony – Demo Scenario
Customers Present: Nichols Fire Department, Long Hill Nichols Fire Department and Stepney Fire Department
- Two compact cars side-by-side
- Both cars were loaded with ordinary combustibles
- Kerosene enriched
- Lit with a Propane Torch
Each crew attacked the following
- Compare a 400-gallon tank conventional rescue pumper operating a 1.75-inch pre-connect operating @ 120 psi versus an HMA Hydrus 100 Gallon Skid, flowing a single UHP 0.75-inch line, pre-connect, 20 gpm @ 1200 psi, full tank, flowing water only.
- Test UHP vs. low-pressure, high-volume line. Test UHP Pressure Washer Wand ILO of Standard UHP Pistol-Grip Nozzle
Results: UHP vs Low Pressure
- More than 1/3 tank left on HMA Skid unit (Used approximately 60 gallons of water)
- Less than ¼ tank left on pumper (Used over 300 gallons of water)
- Each time the UHP nozzle bail was opened, the pump barely reached max RPM the fire was out
- Both cars fully involved
- Approx 40 gallons left in UHP tank
- #1 car completely extinguished, #2 car was left with a small fire in the trunk when “low water alarm” sounded.
UHP Wand vs. Pistol Grip Nozzle
Proved most effective on overhaul of the vehicles
The ability to control pressure with the motion of of handle proved highly effective and minimized return spray to the working firefighter. Both UHP methods were more effective and efficient than the low-pressure attack.
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