cvfd training – hose practices sffma training objectives:...

CVFD Training – Hose Practices

SFFMA Training Objectives:4-01.01,.02,.05,.06,.07,.08,.09,.10,.11,.13,.14

Firefighter I 13–2

Fire Hose

• Produced in different diameters, each for specific purposes

• Size refers to outside diameter• Most commonly cut, coupled into pieces of 50

or 100 feet (15 or 30 m)

(Continued)


Fire Hose


Intake Hose

• Used to connect fire department pumper or portable pump to water source

• Two groups– Soft intake hose– Hard intake hose


NFPA® Standards

• NFPA® 1961, Standard on Fire Hose, lists specifications for fire hose

• NFPA® 1963, Standard for Fire Hose Connections, lists specifications for fire hose couplings and screw threads

(Continued)


NFPA® Standards

• NFPA® 1901, Standard for Automotive Fire Apparatus, requires pumpers to carry varying sizes/amounts of hose


Fire Hose Damage — Mechanical

• Slices, rips, abrasions on coverings

• Crushed/damaged couplings

• Cracked inner linings• Certain practices prevent damage


Fire Hose Damage — Thermal

• Excessive heat/direct flame contact can char, melt, weaken outer jacket and dehydrate rubber lining

• Inner linings can be dehydrated when hose hangs to dry too long

• Certain practices prevent damage


Fire Hose Damage — Organic

• Rubber-jacket hose not subject to damage caused by living organism, but this is a problem on hose with woven jacket of natural fiber if stored wet

• Mildew, mold rot fibers of hose jacket, causing hose to rupture under pressure

(Continued)


Fire Hose Damage — Organic

• If outer jacket made of synthetic fibers, will resist organic damage

• Outer jacket of some natural-fiber hose has been chemically treated to resist mildew, mold; not always 100 percent effective

• Certain practices prevent damage


Fire Hose Damage — Chemical

• Chemicals, chemical vapors can damage outer jacket on hose or cause rubber lining to separate from inner jacket

• When hose exposed to petroleum products, paints, acids, alkalis, may be weakened

(Continued)


Fire Hose Damage — Chemical

Runoff water from fire may carry foreign materials that can damage hose

Certain practices prevent damage


Washing Hose

• Method depends on type of hose– Hard rubber booster hose, hard intake hose,

rubber-jacket collapsible hose– Woven-jacket fire hose

(Continued)


Washing Hose

• When jacket exposed to oil– Wash with mild soap/detergent using common

scrub brush– Make sure oil completely removed– Thoroughly rinse with clear water

(Continued)


Washing Hose

• Hose washing machines– Can make care, maintenance easier– Wash almost any size fire hose up to 3 inches (77

mm)– Flow of water into device can be adjusted as

desired– Movement of water assists in propelling hose

through device(Continued)


Washing Hose

• Hose washing machines– Hoseline that supplies

water can be connected to pumper or used from hydrant

– Higher water pressure equals better results

– Cabinet-type machine Courtesy of Thomas Locke and South Union Volunteer Fire Company.


Drying Hose

• Woven-jacket must be thoroughly dried before being reloaded on apparatus

• Methods depend on type of hose• Should be in accordance with SOP,

manufacturer’s recommendations• Some may be placed on apparatus wet with

no ill effects


DISCUSSION QUESTION

How is hose washed in your department?


Storing Hose

• After hose has been brushed, washed, dried, should be rolled and stored in suitable racks unless it is to be placed back on apparatus

(Continued)


Storing Hose

• Hose racks– Located in clean, well-ventilated room or close to

apparatus– Can be freestanding on floor or mounted

permanently on wall– If mobile, can be used to store and move hose


Threaded Fire Hose Couplings

• Consist of two major components– Male — External threads– Female — Internal threads (Continued)


DISCUSSION QUESTION

Why is it important to be able to differentiate between the male and female couplings during search and rescue operations?



• Disadvantage — One male, one female necessary to make connection unless double-male or double-female adapter used

(Continued)



• Intake hose– Sometimes equipped with two-piece female hose

couplings on each end– Threaded hose couplings on large intake hose

equipped with extended lugs providing handles for attaching to hydrant outlet/pump intake

• Shank — Portion of coupling that serves as point of attachment to hose

(Continued)



• Lugs– Aid in tightening,

loosening couplings

– Aid in grasping coupling when making, breaking coupling connections

– Types (Continued)


DISCUSSION QUESTION

Which lugs do you think are the best to use? Why?



• Higbee cut– Special type of

thread design– Eliminates cross-

threading– One rocker lug on

each half has small indentation to mark where Higbee cut begins


Storz Couplings

• Referred to as sexless couplings• No distinct male/female components• Identical to, may be connected to other Storz

couplings of same size• Designed to be connected/disconnected with

quarter turn

(Continued)


Storz Couplings

• Have lugs, slots built into swivel rings of each coupling for locking

• Must have locking devices if attached to large-diameter hose


Rules for Care of Fire Hose Couplings

• Avoid dropping/dragging• Do not permit vehicles to run over hose• Inspect couplings when hose washed/

dried• Remove gasket, twist swivel in warm, soapy

water

(Continued)


Rules for Care of Fire Hose Couplings

• Clean threads to remove tar, dirt, gravel, oil

• Inspect gasket, replace if cracked/creased


Cleaning Fire Hose Couplings

• Hose-washing machines will not clean sufficiently

• Swivel part should be submerged in warm, soapy water and worked forward and backward

(Continued)


Cleaning Fire Hose Couplings

• Male threads should be cleaned with stiff brush

• Wire brush may be necessary• Swivel gasket• Expansion-ring gasket


DISCUSSION QUESTION

What is a complete hose layout?


Hose Appliances

• Any piece of hardware used with fire hose to deliver water

(Continued)


Hose Appliances

• Valves– Control flow of water in hoselines, at

hydrants, at pumpers– Ball valves– Gate valves– Butterfly valves– Clapper valves

(Continued)


Hose Appliances

• Valve devices– Allow number of

hoselines operating on fire ground to be increased/decreased

– Wye appliances– Siamese appliances

(Continued)


Hose Appliances

• Valve devices– Water thief appliances– Large-diameter hose

appliances– Hydrant valves

(Continued)


DISCUSSION QUESTION

What are some other names for hydrant valves?


Hose Appliances

• Fittings

(Continued)


Hose Appliances

• Intake strainers– Devices attached to

drafting end of hard intake to keep debris from entering fire pump

– Guidelines for use


Hose Tools

• Hose roller– Prevents damage to

hose that can occur when dragged over sharp corners such as roof edges, windowsills

(Continued)


Hose Tools

• Hose roller– Consists of metal frame with two or more rollers– Can be used for protecting rope from similar

edges

(Continued)


Hose Tools

• Hose jacket– Can be installed on ruptured section of hoseline to

temporarily close rupture

(Continued)


Hose Tools

• Hose jacket– Consists of hinged two-piece metal cylinder– Made in two sizes– Encloses hose so can operate at full power– Can be used to connect mismatched hose

(Continued)


Hose Tools

• Hose clamp– Can be used to stop flow of water in hoseline

(Continued)


Hose Tools

• Hose clamp– Three types — Screw-down, press-down, hydraulic

press– Can injure firefighters/damage hose – Several general rules for use

(Continued)


Hose Tools

• Spanner– Used to tighten/loosen couplings– May have other built-in features

(Continued)


Hose Tools

• Hydrant wrench– Used to remove caps from hydrant outlets, open

hydrant valves– Equipped with pentagonal opening fitting most

standard hydrant operating nuts– May be equipped with spanner

(Continued)


Hose Tools

• Rubber mallet — Strike lugs to tighten/loosen couplings

• Hose bridge/ramp– Helps prevent damage to hose– Should be used where hose laid across street– Can be positioned over small spills– Can be used as chafing blocks

(Continued)


Hose Tools

• Chafing blocks– Used to protect fire hose where subjected to

rubbing from vibrations– Useful where intake hose comes in contact

with pavement– May be wood, leather, old truck tires (Continued)


Hose Tools

• Hose strap, hose rope, hose chain– Used to carry, pull fire hose– Provide more secure means

to handle pressurized hose when applying water


Straight Roll

• Simplest• Starts at one end,

usually male coupling; to complete roll hose toward other end

• When complete, female end exposed and male protected in center of roll

(Continued)


• Used in situations– When loaded back on apparatus at fire– When returned to quarters for washing– When placed in storage

• Easy loading of minuteman load• Methods to indicate need for repair/test

Straight Roll


Donut Roll

• Used in situations where hose is likely to be deployed for use directly from roll

(Continued)


Donut Roll

• Advantages over straight roll– Better control– Hose rolls out easier– Facilitates connecting to other couplings

• Can be performed by 1-2 firefighters


Twin Donut Roll

• Works well on 1½-inch (38 mm) and 1¾-inch (45 mm) hose

• Creates compact roll that is easily transported, carried

• If couplings offset about 1 foot (0.3 m), can be coupled together after roll tied


Self-Locking Twin Donut Roll

• Twin donut roll with built-in carrying loop formed from hose itself

• Loop locks over couplings to keep intact

• Length of carrying loop may be adjusted


DISCUSSION QUESTION

Are there any hose rolls specific to your department or jurisdiction?


Hose Beds

• Hose compartments on fire apparatus

• Vary in size, shape• Sometimes built for

specific needs• Front of hose bed• Rear of hose bed• Split beds


Hose Loading Guidelines

• Check gaskets, swivel before connecting couplings

• Keep flat sides of hose in same plane when two sections connected

• Tighten couplings hand-tight• Remove kinks, twists when bent to form loop

in hose bed(Continued)



• Make short fold/reverse bend in hose during loading so couplings not too close to front or rear of hose bed and will not flip over when pulled out of bed

(Continued)



• Load large-diameter hose with all couplings near front of bed

• Do not pack too tightly; should permit gloved hand between folds


Accordion Load

• Derives name from manner in which it appears after loading

• Procedure• Advantages


Horseshoe Load

• Named for way it appears after loading

• Procedure• Advantage• Disadvantages

(Continued)


Horseshoe Load

• In single hose load, may be started on either side

• Steps for split hose bed


Flat Load

• Easiest to load• Suitable for any size

supply hose• Best way for large-

diameter hose• Advantage• Disadvantage

(Continued)

Courtesy of Sam Goldwater.


Flat Load

• May be started on either side of single hose bed

• In split hose bed, lay first length against partition with coupling hanging appropriate distance below hose bed

• Large-diameter hose


Finishes for Forward Lays

• Designed to facilitate making hydrant connection

• Not as elaborate as finishes for reverse lays

(Continued)


Finishes for Forward Lays

• Straight finish– Last length or two of hose

flaked loosely back and forth across top of hose load

– Associated with forward-lay operation

– Hydrant wrench, gate valve, adapters strapped to hose near female coupling


Finishes for Reverse Lays

• Reverse horseshoe finish– Similar to horseshoe load– One or two 100-foot (30 m) lengths of hose– Can be used with any size attack hose– Can be used for preconnected line– Can be loaded in two or three layers– Can be pulled from bed for arm carry

(Continued)



• Reverse horseshoe finish

(Continued)



• Skid load finish– Folding last three lengths of hose into compact

bundle on top of rest of load– Begins by forming 3+ pull loops extending beyond

end of hose load– Rest of hose accordion-folded across hose used to

form pull loops

(Continued)


Preconnected Hose Loads for Attack Lines

• Primary lines used for fire attack by most departments

• Connected to discharge valve, placed in area other than main hose bed

• Range from 50-250 feet (15-75 m)• Can be carried in several places


Preconnected Flat Load

• Adaptable for varying widths of hose beds

• Often used in transverse beds

• Similar to flat load for large supply hose except– Preconnected– Loops provided to aid in pulling from bed


Triple Layer Load

• Begins with hose folded in three layers

• Designed to be pulled by one person

• Disadvantage• Can be used for all sizes attack lines• Often preferred for larger lines


Minuteman Load

• Designed to be pulled, advanced by one

• Advantage• Pays off shoulder as

firefighter advances toward fire• Well suited for narrow hose bed• Disadvantages


Booster Hose Reels

• Used for booster lines• May be mounted in any of several places on

apparatus• Should be loaded one layer at a time in an even

manner• May be hand- or

power-operated


DISCUSSION QUESTION

What hose loads are used in your department?


Guidelines When Laying Hose

• Do not ride in standing position to lay hose when apparatus moving

• Drive apparatus at speed no greater than one that allows couplings to clear tailboard as hose leaves bed

• Lay hose to one side of roadway


Forward Lay

(Continued)


Forward Lay

• Hose laid from water source to fire• Used when source is a hydrant and pumper

must be positioned near fire• Hose beds should be loaded so first coupling

off is female• Operation

(Continued)


Forward Lay

• Advantages• Disadvantages• Information for firefighter at hydrant• Making hydrant connection• Using four-way hydrant valves


Reverse Lay

(Continued)


Reverse Lay

• Hose laid from fire to water source• Used when pumper must first go to fire

location so size-up can be made before laying supply line

• Most expedient way to lay hose if apparatus must stay close to water

(Continued)


Reverse Lay

• Hose beds should be loaded so first coupling off hose bed is male

• Has become standard method for setting up relay pumping operation when using 2½-inch or 3-inch (65 or 77 mm) hose as supply line

(Continued)


Reverse Lay

• Long lays of large hose may require pumper at hydrant to increase pressure in supply hose

• Most direct way to supplement pressure, set up drafting operations

• Disadvantages

(Continued)


Reverse Lay

• Procedures if operation involves two pumpers• Does not require four-way hydrant valve• Also used when pumper arrives at fire and

must work alone for extended time

(Continued)


Reverse Lay

• Making hydrant connections with soft intake hose

• Making hydrant connections with hard intake hose


Split Lay

(Continued)


Split Lay

• Any of a number of ways to lay multiple supply hoses with a single engine

• Various types• If equipped with sexless couplings, direction of

lay is unimportant• May other options when hose bed is divided


Pulling Preconnected Hoselines

• Preconnected flat load • Minuteman load• Triple layer load


Other (Not Preconnected) Hoselines

• Usually 2½-inches (65 mm) or larger• Wyed lines• Shoulder loads from flat/horseshoe loads• Shoulder loads from accordion or flat loads


Working Line Drag

• One of quickest, easiest ways to move fire hose at ground level

• Use limited by available personnel


Advancing Hoselines

• Difficult when deploying up or down stairways, from standpipes, up ladders, deep into buildings

• Easier when uncharged


Guidelines When Advancing Hoseline into Burning Structure• Bleed air from charged

hoselines before entering• Position nozzle operator, all

members of hose team on same side of hoseline

• Check doors for heat before opening

(Continued)


Guidelines When Advancing Hoseline into Burning Structure

• Stay low, avoid blocking ventilation openings• Chock self-closing doors open• Check for, remove kinks from line


Advancing Hose Up Stairway

• Should be advanced up stairways uncharged when conditions allow

• Lay uncharged hose against outside wall to keep stairs clear as possible, avoid sharp bends and kinks in hose

• If possible, position firefighter at every turn/point of resistance


DISCUSSION QUESTION

Why should hose be uncharged when advancing up a stairway?


Advancing Hose Down Stairway

• Advancing uncharged hoseline easier than charged

• Advancing uncharged line recommended only when no fire, very minor fire

(Continued)


Advancing Hose Down Stairway

• Excess hose should be flaked outside stairwall• Firefighters must be positioned at corners,

pinch points


Advancing Hose From Standpipe

• Getting hose to upper floors of high-rise buildings can be challenging

• One solution is to have hose rolls or packs on apparatus ready to carry aloft and then connect to standpipe system

(Continued)



• Hose must be brought to fire floor over aerial ladder or by interior stairway

• Crews normally stop one floor below fire floor and connect to standpipe

• If standpipe in enclosed stairwell, it is acceptable to hook up on fire floor

(Continued)



• Steps once at standpipe connection• Be alert for pressure-relief devices and follow

SOPs for removal/connection• If using certain sizes of hose, place gated wye

on standpipe outlet

(Continued)



• 2½-inch (65 mm) attack line may be used depending on size, nature of fire

• Extra hose should be flaked up stairs toward floor above fire

• During pickup operations, carefully drain water to prevent unnecessary damage


Advancing Hose Up Ladder

• Easier and safer with uncharged line• Advancing charged line• Operating hoseline from ladder


Controlling Loose Hoseline

• Very dangerous because it may flail about or whip back and forth

• Firefighters, bystanders may be seriously injured or killed

• Methods for controlling


Replacing Burst Sections

• Hose clamp or kink can be used to stop flow of water when replacing burst section of hose

• Two additional sections of hose should be used to replace any one bad section


Operating Small Handlines — One-Firefighter Method

• Only used during overhaul after fire or for very small outdoor nuisance fires

• Requires hoseline to be straight at least 10 feet (3 m) behind nozzle

• Firefighter should hold nozzle with one hand and hose with the other


Operating Small Handlines — Two-Firefighter Method

• Usually needed when nozzle must be advanced

• Nozzle operator duties• Backup firefighter duties


Operating Large Handlines — One-Firefighter Method

• NOT recommended when nozzle is connected to large handline

• May be used during exposure protection/overhaul operations if master stream device unavailable

(Continued)



• Large loop formed that crosses over line behind nozzle

• Firefighter sits on intersection where hose crosses and directs stream (Continued)



• To reduce fatigue, nozzle operator can use hose strap or utility strap looped over shoulder or reduce nozzle flow if conditions allow

• Does not permit much maneuvering


Operating Large Handlines — Two-Firefighter Method #1

• Uses means of anchoring hose because of nozzle reaction



Operating Large Handlines — Two-Firefighter Method #2

• Uses hose rope tools or utility straps to assist in anchoring hose



Operating Large Handlines — Three-Firefighter Method

• In all cases, positioning of nozzle operator same as for two-firefighter method

(Continued)


Operating Large Handlines — Three-Firefighter Method

• Some departments prefer first backup firefighter to stand behind nozzle operator with third firefighter kneeling on hose behind second firefighter

• Another method is for all firefighters to use hose straps and remain standing

cvfd training – hose practices sffma training objectives:...

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