Chapter 1: Types of Apparatus Equipped with a Pump Flashcards
Fire apparatus’ are classified according to
the primary function for which they are designed
The fire department pumper is
the core unit of the fire service and is sometimes expected to fill several roles such as rescue, hazardous materials, or medical responses
Fire department pumper
: is to provide adequate water pressure for effective fire streams
The 3 water sources may be the
apparatus internal water tank
A fire hydrant
a static water source such as a lake or portable water tank
NFPA 1901
Standard for automotive fire apparatus: contains the requirements of pumper design
what does the NFPA 1901 standard require of pumps and tanks
o This standard specifies a minimum pump capacity of 750gpm (3000L/min)
o minimum water tank with a capacity of 300gallons (1200L)
Pump capacities larger than 750gpm (3000L/min) increase in increments of
250gpm (1000L/min) with most municipal fire departments operating pumpers of 20000gpm (8000l/min) or less
- Nfpa 1901 specifies the minimum portable equipment that must be carried on all fire department pumpers include:
o Intake and discharge pump connections
o Pump controls and gauges
o Variety of hose and nozzle sizes and types
The following list contains equipment commonly found on pumpers:
o Ground ladders
o SCBA
o Forcible entry tools
o Salvage tools and equipment
o Portable water tank
o Emergency medical equipment
Rescue pumpers
combine some of the functions of a rescue company with a fire department pumper
o They carry medical ,rescue and extrication equipment
Both municipal and industrial foam pumpers may be equipped with any of the following:
around the pump, direct injection and balance pressure foam proportioning systems
Compressed air foam systems (CAFS
o Balanced pressure proportioning system
o Fire pumps ranging in capacity from 750 to 3000gpm
o Large onboard tank of foam concentrate
o Large fixed foam/water turret capable of flowing the entire capacity of the fire pump
around the pump, direct injection and balance pressure foam proportioning systems
o Around-the-pump (foam tank never mixes with the pump)
direct injection (puts it right into the pump)
balanced pressure foam proportioning systems (balance of foam and water)
Compressed air foam systems (CAFS)
generic term used to describe a high energy foam generation system consisting of a water pump, a foam proportioning system, and an air compressor (or other air source) that injects air into the foam solution before it enters a hose line (combined with or in addition to another proportioning system)
municipal and industrial foam pumpers Fire pumps ranging in capacity from —- to ——gpm or greater
Fire pumps ranging in capacity from 750 to 3000gpm (3000L /min to 12000l/min) or greater
Large onboard tank of foam concentrate (usually found on industrial pumpers) oftain contain —— gallons or more of foam concentrate
500 gallons
limitation of Class A foam systems commonly installed on municipal fire pumpers
only have a few discharge outlets are capable of flowing foam solution.
The foam proportioning systems commonly found on municipal fire pumpers are scaled down versions of……
Likewise the foam tanks are correspondingly smaller, usually ranging from — to — gallons
The foam proportioning systems commonly found on municipal fire pumpers are scaled down versions of those used for industrial fire pumpers
Likewise the foam tanks are correspondingly smaller, usually ranging from 20 to 100 gallons
small tanks are often designed to be refilled directly from — gallon containers
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Initial Attack Fire Apparatus
: fire apparatus whose primary purpose is to initiate a fire attack on structural and wildland fires and support associated fire department actions
o scaled-down versions of full size pumpers
Mini pumper
small fire apparatus mounted on a pickup truck sized chasis, usually with a pump having a rated capacity less than 500 gpm (2000L/min)
o Primary advantage is speed and mobility, which enables it to respond to fires more rapidly than larger apparatus
Midi pumper
apparatus sized between a mini pumper and a full sized fire department, ususlly with a gross vehicle weight of 12,000 pounds or greater.
o Fire pump with a rated capacity generally not greater than 1000gpm
Mobile Water Supply Apparatus(water tenders or tankers)
used to transport water to areas where a water system is nonexistent or inadequate
the capacity of mobile water supply units is based on a variety of factors including:
o Terrain: apparatus must be capable of traversing roads in the area, including hills and winding, narrow roads
o Bridge and weight limits: bridges in a response area must be capable of supporting the weight of water supply apparatus
If the apparatus is over weight for some older bridges, alternate routes should be preplanned
o Monetary constraints: local jurisdiction may not have enough funding to purchase and operate a large mobile water supply apparatus
o Interoperability: the capability of nearby jurisdictions should be considered before making a purchase. Water shuttles may operate more efficiently with apparatus of similar capacity
Mobile water supply apparatus:
o are equipped with a tank capacity of
1000 gallons