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148 Cards in this Set
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Fire hose identification and usage |
1) identifies a type of flexible tube used by firefighters to carry water under pressure from the source of supply to a point where it is discharged 2) constructed of the best materials 3) should not be used for purposes other than firefighting 4) most commonly cut or coupled into lengths of 50 or 100 ft for convenience of placement and handling 5) these lengths are referred to as sections |
5 parts |
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Intake hose |
Used to connect a fire department pumper or a portable pumper to a nearby water source. |
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Soft sleeve |
-Used to transfer water from a pressurized source such as a fire hydrant to a pump intake -available in sizes ranging from 2 1/2" to 6" |
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Hard suction hose or hard sleeve |
-used primarily to draft water from an open water source -also used to siphon water from one portable tank to another usually in a tanker shuttle operation -constructed of a rubberized reinforced material designed to withstand the partial vacuum conditions created when drafting -available in sizes ranging from 2.5" to 6" |
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Hard suction hose or hard sleeve |
-used primarily to draft water from an open water source -also used to siphon water from one portable tank to another usually in a tanker shuttle operation -constructed of a rubberized reinforced material designed to withstand the partial vacuum conditions created when drafting -available in sizes ranging from 2.5" to 6" |
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NFPA 1961 Standard on fire hoses |
Lists specifications on fire hose |
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Attack line |
Hose between attack pumper and nozzle used to control and extinguish fire |
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Water supply line |
Between water source and attack pumper to provide large volumes of water |
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NFPA 1963 Standard on Fire hose Connections |
Lists specifications for fire hose couplings and screw threads |
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NFPA 1901 Standard for Automotive Fire Apparatus |
Requires pumpers to carry: 15 ft of large soft sleeve hose or 20 ft of hard suction hose 1200 ft of 2.5" or larger supply hose 400ft of 1.5, 1.75 or 2" of attack hose |
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Mechanical damage |
Worn places, rings, abrasions on the coverings, crushed or damaged couplings, and cracked inner linings |
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Water hammer |
Force created by rapid deceleration of water |
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Thermal damage |
Excessive heat can char, melt or weaken the fabric covering and dry the rubber lining |
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Organic damage |
Mildew or mold may occur on woven jacket hose when moisture remains on the outer surface Mold causes decay and deterioration on hose Rubber jacket hose not subject to mold |
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Chemical damage |
Chemicals and their vapors will damage rubber lining and often cause lining and jacket to separate When exposed to petroleum products, paints and acids or alkalis it may be weakened to the point of bursting Runoff waters from the fire may contain foreign materials that can damage fire hose |
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Hose care and maintenance |
-hard rubber, hard suction and rubber jacket are cleaned with water and mils soap -woven jacket, dirt must be brushed off first -hose washing machine can wash any hose up to 3" -dry jacket requires drying before reloading, the others do not |
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Couplings |
-made of brass and aluminum alloy, will not rust -drop forge couplings-stronger, stand up well to normal use -cast couplings-weakest and rarely used -extruded couplings-weaker but acceptable |
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Threaded couplings: five piece types |
Reducing couplings used when needed coupling size is smaller than the hose to which it is attached Used so no adapter fittings are needed |
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Threaded couplings: three piece Type |
Used for intake hose couplings |
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Threaded couplings: shanks |
Portion of the coupling that serves as the point of attachment Male couplings have lugs on the shanks Female couplings have lugs on the swivel |
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Threaded couplings: spanners |
Special tools that fit against the lugs |
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Three types of lugs |
Booster hose normally has recessed lugs Pin lugs not commonly used because of tendency to snag when dragged Modern thread couplings have rounded rocker lugs |
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Threaded couplings: Higbee Cut |
Special type of thread design in which the beginning of the thread is "cut" to provide a positive connection between the first threads of opposing couplings, which tends to eliminate cross threading Higher indicators mark where the higher cut begins |
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Threaded couplings: Higbee Cut |
Special type of thread design in which the beginning of the thread is "cut" to provide a positive connection between the first threads of opposing couplings, which tends to eliminate cross threading Higher indicators mark where the higher cut begins |
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Threaded couplings: Storz coupling |
Referred to as a sexless coupling Connected and disconnected with only one third of a turn Locking components are grooved lugs and inset rings built into the swivel |
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Care of couplings |
Remove gasket and twist swivel in warm soapy water Clean threads Inspect gaskets |
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Hose appliances |
Water flows through them Valves, valve devices, intake devices |
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Hose tools |
Used with hoses but no water flows through them Hose rollers, spammer wrenches, hose straps, hose jackets, blocks, etc |
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Valves: ball valves |
Used in pumper discharges and gated wyes Open when the handle is in line with the hose and closed when it is at a right angle with the hose Also used in fire pump piping system |
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Valves: gate valves |
Used to control the flow from the hydrant Have a baffle that is moved by a handle and screw arrangement |
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Valves: butterfly valve |
Used on large pumper intakes Used a flat baffle operated by a quarter turn handle Baffle in center of water way when valve is open |
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Valves: butterfly valve |
Used on large pumper intakes Used a flat baffle operated by a quarter turn handle Baffle in center of water way when valve is open |
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Valves: clapper valve |
Used in Siamese appliances to allow only one intake hose to be connected and charged before addition of more hoses Flat disk that is hinged on one side and swings in a door like manner |
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Valve devices |
Increase or decrease number of hose lines operating on the fire ground |
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Wye appliances |
Divides a line of hose into two or more lines Common wye has 2.5" intake and two 1.5" outlets Often gated so that water being fed into the hose lines may be controlled at the gate |
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Siamese appliances |
Two or more hoseline that are brought into one hoseline or device Typical Siamese has 2 or 3 female connections coming into one male discharge May or may not be equipped with clapper valves Often used to overcome problems of friction loss in hose lays that carry large flow or cover large distances Commonly used to supply ladder pipes that are not equipped with permanent waterways |
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Water thief appliance |
Variation of the wye Common type consists of one 2.5" inlet with one 2.5" and two 1.5" discharges Intended to be used on 2.5" or larger hoseline, usually near the nozzle |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Adapter |
Fitting for connecting hose couplings with dissimilar threads but with same inside diameter |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Adapter |
Fitting for connecting hose couplings with dissimilar threads but with same inside diameter |
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Reducer |
Used to extend a larger hoseline by connecting a smaller one at the end Extending a line with a reducer limits options to just that hoseline |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Adapter |
Fitting for connecting hose couplings with dissimilar threads but with same inside diameter |
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Reducer |
Used to extend a larger hoseline by connecting a smaller one at the end Extending a line with a reducer limits options to just that hoseline |
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Elbows |
Changes the direction of flow |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Adapter |
Fitting for connecting hose couplings with dissimilar threads but with same inside diameter |
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Reducer |
Used to extend a larger hoseline by connecting a smaller one at the end Extending a line with a reducer limits options to just that hoseline |
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Elbows |
Changes the direction of flow |
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Hose caps |
Close off male couplings |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Adapter |
Fitting for connecting hose couplings with dissimilar threads but with same inside diameter |
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Reducer |
Used to extend a larger hoseline by connecting a smaller one at the end Extending a line with a reducer limits options to just that hoseline |
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Elbows |
Changes the direction of flow |
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Hose caps |
Close off male couplings |
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Hose plugs |
Close off female couplings |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Adapter |
Fitting for connecting hose couplings with dissimilar threads but with same inside diameter |
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Reducer |
Used to extend a larger hoseline by connecting a smaller one at the end Extending a line with a reducer limits options to just that hoseline |
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Elbows |
Changes the direction of flow |
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Hose caps |
Close off male couplings |
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Hose plugs |
Close off female couplings |
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Intake devices |
Suction hose strainers -intake devices attached to the drafting end of a hard suction sleeve to keep debris from entering the fire pump -should not be allowed to rest at the bottom of the water source |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Adapter |
Fitting for connecting hose couplings with dissimilar threads but with same inside diameter |
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Reducer |
Used to extend a larger hoseline by connecting a smaller one at the end Extending a line with a reducer limits options to just that hoseline |
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Elbows |
Changes the direction of flow |
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Hose caps |
Close off male couplings |
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Hose plugs |
Close off female couplings |
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Intake devices |
Suction hose strainers -intake devices attached to the drafting end of a hard suction sleeve to keep debris from entering the fire pump -should not be allowed to rest at the bottom of the water source |
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Hose Poller (Hose Hoist) |
Metal frame with 2 or more rollers Placed on potentially damaging edges Hose secured with rope or c-clamp and pulled over rollers |
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Large diameter hose appliances |
Distribute water near the final destination of the hoseline Portable hydrants, manifolds, phantom pumpers, large diameter distributors Generally have 4" to 5" inlet and two or more smaller outlets |
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Fittings |
For connecting hoses of different sizes and thread types |
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Adapter |
Fitting for connecting hose couplings with dissimilar threads but with same inside diameter |
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Reducer |
Used to extend a larger hoseline by connecting a smaller one at the end Extending a line with a reducer limits options to just that hoseline |
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Elbows |
Changes the direction of flow |
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Hose caps |
Close off male couplings |
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Hose plugs |
Close off female couplings |
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Intake devices |
Suction hose strainers -intake devices attached to the drafting end of a hard suction sleeve to keep debris from entering the fire pump -should not be allowed to rest at the bottom of the water source |
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Hose Poller (Hose Hoist) |
Metal frame with 2 or more rollers Placed on potentially damaging edges Hose secured with rope or c-clamp and pulled over rollers |
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Hose jackets |
Used when hose is ruptured and operation can not be shut down to replace line Made in 2 sizes: 2.5" and 3" Enclosed the hose so it can operate at full pressure Can also be used to connect hose with damaged and mismatched screw thread coupling |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose clamp: what are the reasons for use? |
1)Prevent charging the hose bed during hose lay operations 2) allow replacement of a burst section without shutting down water supply 3) allow extension of hoseline without shutting down water supply 4) allow advancement of charged hoseline up stairs |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose clamp: what are the reasons for use? |
1)Prevent charging the hose bed during hose lay operations 2) allow replacement of a burst section without shutting down water supply 3) allow extension of hoseline without shutting down water supply 4) allow advancement of charged hoseline up stairs |
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Hose clamp: rules for use |
1) Apply at least 20 ft behind apparatus 2) apply approx 5 ft from coupling on the incoming water side 3) stand to one side 4) Center hose evenly in jaws 5) close and open slowly to prevent water hammer |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose clamp: what are the reasons for use? |
1)Prevent charging the hose bed during hose lay operations 2) allow replacement of a burst section without shutting down water supply 3) allow extension of hoseline without shutting down water supply 4) allow advancement of charged hoseline up stairs |
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Hose clamp: rules for use |
1) Apply at least 20 ft behind apparatus 2) apply approx 5 ft from coupling on the incoming water side 3) stand to one side 4) Center hose evenly in jaws 5) close and open slowly to prevent water hammer |
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Spanner wrenches |
Tighten or loosen hose coupling |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose clamp: what are the reasons for use? |
1)Prevent charging the hose bed during hose lay operations 2) allow replacement of a burst section without shutting down water supply 3) allow extension of hoseline without shutting down water supply 4) allow advancement of charged hoseline up stairs |
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Hose clamp: rules for use |
1) Apply at least 20 ft behind apparatus 2) apply approx 5 ft from coupling on the incoming water side 3) stand to one side 4) Center hose evenly in jaws 5) close and open slowly to prevent water hammer |
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Spanner wrenches |
Tighten or loosen hose coupling |
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Hydrant wrenches |
Removes caps from fire hydrant outlets and open hydrant valves |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose clamp: what are the reasons for use? |
1)Prevent charging the hose bed during hose lay operations 2) allow replacement of a burst section without shutting down water supply 3) allow extension of hoseline without shutting down water supply 4) allow advancement of charged hoseline up stairs |
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Hose clamp: rules for use |
1) Apply at least 20 ft behind apparatus 2) apply approx 5 ft from coupling on the incoming water side 3) stand to one side 4) Center hose evenly in jaws 5) close and open slowly to prevent water hammer |
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Spanner wrenches |
Tighten or loosen hose coupling |
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Hydrant wrenches |
Removes caps from fire hydrant outlets and open hydrant valves |
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Rubber mallet |
Used to strike the lugs to tighten or loosen intake hose couplings |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose clamp: what are the reasons for use? |
1)Prevent charging the hose bed during hose lay operations 2) allow replacement of a burst section without shutting down water supply 3) allow extension of hoseline without shutting down water supply 4) allow advancement of charged hoseline up stairs |
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Hose clamp: rules for use |
1) Apply at least 20 ft behind apparatus 2) apply approx 5 ft from coupling on the incoming water side 3) stand to one side 4) Center hose evenly in jaws 5) close and open slowly to prevent water hammer |
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Spanner wrenches |
Tighten or loosen hose coupling |
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Hydrant wrenches |
Removes caps from fire hydrant outlets and open hydrant valves |
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Rubber mallet |
Used to strike the lugs to tighten or loosen intake hose couplings |
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Hose bridges or hose ramps |
Help to prevent injuries to hose when vehicles cross it Also can keep hoseline out of potentially dangerous liquids |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose clamp: what are the reasons for use? |
1)Prevent charging the hose bed during hose lay operations 2) allow replacement of a burst section without shutting down water supply 3) allow extension of hoseline without shutting down water supply 4) allow advancement of charged hoseline up stairs |
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Hose clamp: rules for use |
1) Apply at least 20 ft behind apparatus 2) apply approx 5 ft from coupling on the incoming water side 3) stand to one side 4) Center hose evenly in jaws 5) close and open slowly to prevent water hammer |
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Spanner wrenches |
Tighten or loosen hose coupling |
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Hydrant wrenches |
Removes caps from fire hydrant outlets and open hydrant valves |
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Rubber mallet |
Used to strike the lugs to tighten or loosen intake hose couplings |
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Hose bridges or hose ramps |
Help to prevent injuries to hose when vehicles cross it Also can keep hoseline out of potentially dangerous liquids |
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Chafing blocks |
Used to protect fire hoses where it is subject to rubbing from vibrations Made of wood, leather or old truck tires |
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Hose Clamp |
Stops the flow of water in a hoseline |
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Hose clamp: what are the reasons for use? |
1)Prevent charging the hose bed during hose lay operations 2) allow replacement of a burst section without shutting down water supply 3) allow extension of hoseline without shutting down water supply 4) allow advancement of charged hoseline up stairs |
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Hose clamp: rules for use |
1) Apply at least 20 ft behind apparatus 2) apply approx 5 ft from coupling on the incoming water side 3) stand to one side 4) Center hose evenly in jaws 5) close and open slowly to prevent water hammer |
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Spanner wrenches |
Tighten or loosen hose coupling |
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Hydrant wrenches |
Removes caps from fire hydrant outlets and open hydrant valves |
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Rubber mallet |
Used to strike the lugs to tighten or loosen intake hose couplings |
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Hose bridges or hose ramps |
Help to prevent injuries to hose when vehicles cross it Also can keep hoseline out of potentially dangerous liquids |
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Chafing blocks |
Used to protect fire hoses where it is subject to rubbing from vibrations Made of wood, leather or old truck tires |
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Hose strap, hose rope and hose chain |
Used to carry and pull fire hose Provides a more secure means to handle pressurized hose when applying water |
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Hose rolls: what is the straight roll used for? |
Loading hose back into the apparatus When returned to quarters for washing When placed in storage |
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Hose rolls: what are donut rolls used for and what are their advantages? |
Commonly used when hose is going to be deployed directly from the roll Both ends are available on outside of roll May be quickly unrolled and placed into service Less likely to spiral or kink when unrolled |
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Hose rolls: Twin donut roll |
More adaptable to 1.5" or 1.75" hose. Can also be used with 2", 2.5" or 3" Purpose is to arrange a compact roll that can be transported easily Couplings should be offset by 1 ft at beginning |
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Hose rolls: what is the purpose of a self locking twin donut roll? |
Twin donut roll with built in carrying strap formed from the hose itself |
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Hose loading: accordion loading |
Easy loading; number if folds easily picked up when unloading |
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Horseshoe load: advantages and disadvantages |
Advantages: fewer sharper bends Disadvantages: comes out in a wavy manner, no folds for the shoulder carry |
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Horseshoe load: advantages and disadvantages |
Advantages: fewer sharper bends Disadvantages: comes out in a wavy manner, no folds for the shoulder carry |
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Flat load: advantages and disadvantages |
Advantage: easiest to load Disadvantage: hoseline subject to wear, sharp edges which require reloading periodically |
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Preconnected flat load |
Often used in transverse beds Same as flat load Loops are provided to aid in pulling form bed Preconnects generally range from 50 ft to 250 ft |
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Triple Layer load |
Begins with hose folded in three layers Laid in bed in S shape Disadvantage: hose must be completely pulled off to use nozzle |
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Minute man load: advantages and disadvantages |
Advantage: can be carried on one shoulder completely clear of ground Disadvantage: Awkward to carry with SCBA |
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