Watertight Integrity.ppt

7/24/2019 Watertight Integrity.ppt

1/16

WatertightWatertight

IntegrityIntegrity

Noel Frichot


2/16

DefnitionDefnition

Watertight means:Watertight means:

a) In relation to a ftting above deck, that it is soa) In relation to a ftting above deck, that it is so

constructed as to resist eectively the passage oconstructed as to resist eectively the passage oater under pressure, e!cept or slight seepage"ater under pressure, e!cept or slight seepage"

b) In relation to the structure o the vessel,b) In relation to the structure o the vessel,

capable o preventing the passage o ater in anycapable o preventing the passage o ater in anydirection i the head o pressure ere up to thedirection i the head o pressure ere up to the

reeboard deck, hich in your case ould mean thereeboard deck, hich in your case ould mean the

main deck"main deck"


3/16

Major AreasMajor Areas

#elo the $ain %eck#elo the $ain %eck

Must be WatertightMust be Waterti

ght

&bove the $ain deck&bove the $ain deck

Must be Weathertight


4/16

WATER TIGHTWATER TIGHT

WEATHER TIGHTWEATHER TIGHT


5/16

Main Deck

Collision Bulkhead

Tank top

Bulkheads

Double Bottom Tanks

Openings below

dec !"stwatertight

Doors belowdec !"st bewatertight


6/16

Alar!sAlar!s

&ll openings belo decks must&ll openings belo decks must

'"'" (ave a light indicator on the bridge(ave a light indicator on the bridge

""

(ave an audible alarm on the bridge(ave an audible alarm on the bridge*"*" (ave an orange+red ashing light at(ave an orange+red ashing light at

the doorthe door hen in operationhen in operation

-"-"

(ave an audible alarm hen in(ave an audible alarm hen inoperationoperation


7/16

Is it Watertight#Is it Watertight#

.urvey checks.urvey checks

'"'" /halk test/halk test

"" (igh 0ressure ater hose test(igh 0ressure ater hose test

*"*" 1ltrasonic test1ltrasonic test


8/16

$hal test$hal test

/halk is rubbed on the compression bar and/halk is rubbed on the compression bar and

the door is then closed and dogged tightthe door is then closed and dogged tight

%oor is opened and chalk ill transer to%oor is opened and chalk ill transer tothe rubber sealthe rubber seal

I there are areas here there is no chalkI there are areas here there is no chalkon the seal, then no contact has been made"on the seal, then no contact has been made"


9/16

High press"re waterHigh press"re water

hose testhose test& fre hose is 2et streamed at a& fre hose is 2et streamed at a

closed atertight door and leaks areclosed atertight door and leaks are

checked by a person on the otherchecked by a person on the other

sideside

& radio is used or communication"& radio is used or communication"


10/16

%ltrasonic%ltrasonic 3ives an indication o compression

beteen the compression bar andrubber packing

4uickly pinpoints leaks and areas thatlack compression

&llos 5uick and easy testing

/an also be used or eather tightness

6ne man can operate the instrument


11/16

&"lhead&"lhead

openings'(enetrationsopenings'(enetrations

Internal Watertight Door

Pipes Passing Through WatertightBulkhead must be flanged


12/16

Main Dec OpeningsMain Dec Openings

Access Hatchways on Fore Deck

Raised Coaming


13/16

Eternal Weathertight Door


14/16

Watertight Door !pen Alarm "witch


15/16

)c"ppers* Inlets +)c"ppers* Inlets +

DischargesDischarges&ll sea inlets 7.trum #o!+.ea chest) areto be ftted ith valves o steel ormaterial o e5uivalent strength

attached direct to the hull or approvedskin fttings"Drainage Arrange!ents ,ro!

Weather DecsWeather decks are to be provided ithreeing ports, open rails or scupperscapable o rapidly clearing the deck o all

ater under all eather conditions"


16/16

MaintenanceMaintenance

Watertight integrity can be breachedthrough any activity or happening thatallos the ingress o ater in unantedareas or compartments o the vessel"

Typical e-a!ples incl"de.9ack o maintenance to seals, scre threads andother locking devices"%amage caused by collision, grounding or heavyeather"

9eaving hatches, doors, vents etc" open"#locked reeing ports or scuppers"/racks along elds in metal vessels or loss ocaulking rom planked seams in timbervessels"

Documents

Watertight Integrity.ppt