IS 15811: Long-range water-cum-foam monitor with self-inducting, aspirating and non-aspirating jet and spray/fog nozzle for fire fighting -Specification

2008·4 MB·English

by  Bureau of Indian Standards

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IS 15811 (2008): Long-range water-cum-foam monitor with
self-inducting, aspirating and non-aspirating jet and
spray/fog nozzle for fire fighting -Specification [CED 22:
Fire Fighting]
“!ान $ एक न’ भारत का +नम-ण”
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IS 15811 :2008
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Indian Standard
LONG-RANGE WATER-CUM-FOAM MONITOR
WITH SELF-INDUCTING,ASPIRATINGAND
NON-ASPIRATING JETAND SPRAY/FOG NOZZLE FOR
FIRE FIGHTING -SPECIFICATION
ICS13.220.10
«:J BIS 2008
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN. 9 BAH ADUR SHAH ZAFAR MARG
NEWDELHI 110002
November 2008 PriceGroup2
FireFightingSectionalCommittee,CED22
FOREWORD
This Indian Standard was adopted by the Bureau ofIndian Standards, after the draft finalized by the Fire
FightingSectionalCommittee hadbeenapproved bytheCivil EngineeringDivision Council.
Water-eum-foammonitors withaspiratingornon-aspirating typeGetand spray/fog)nozzle are usedforthe
protectionofClass Bflammable liquid risk. Withthehelp ofthisequipment, itispossibletodirecttheflow
of foam (and in some cases water) at any angle in horizontal and vertical axis. This standard has been
formulatedtolaydownminimumperformance requirements.
Whenthisequipment isused with sea water,aluminium and carbon steel parts shall not be used.
Forthepurposeofdecidingwhetheraparticularrequirementofthisstandardiscompliedwith,thefinalvalue
observed or calculated, expressing the result ofa test or analysis, shall be rounded offinaccordance with
IS2:1960'Rulesforroundingoffnumericalvalues(revised)'. Thenumberofsignificant placesretainedinthe
roundedoffvalue should be thesame as thatofspecified value inthis standard.
IS 15811 :2008
Indian Standard
LONG-RANGE WATER-CUM-FOAM MONITOR
WITH SELF-INDUCTING, ASPIRATING AND
NON-ASPIRATING JETAND SPRAYIFOG NOZZLE FOR
FIRE FIGHTING - SPECIFICATION
1 SCOPE f) Water foam nozzle, aspirating or non
aspirating type with pick up tube and with
This standard lays down the requirements for stand
or withoutjetratiocontroller,and
post type or trolley/trailer mounted water/foam
monitorofnozzlesize:63 mm, 75 mrn, 100mmand g) Drain valve.
150mmused for fire fightingat variousflow rates.
4 MATERIAL
2 REFERENCES
4.1 The material ofconstructionofvarious parts of
The standards listed at Annex A contain provisions the waterfoam monitorwith nozzleshall bedefined
which through reference in this text, constitute on the basisofmaterial ofconstructionofwaterway
provisions of this standard. At the time of required for waterfoam monitorasgiven inTable I.
publication, the editions indicated were valid. All
NOTE- The material ofconstruction to be selected as
standards are subject to revision, and parties
agreed between the purchaser and the manufacturers
toagreementsbasedon this standardare encouraged
keeping in view the compatibility of materials,
to investigate the possibility of applying the
most recent editions ofthe standards indicated at 4.2 The dimensionofinletflange shall beasagreed
AnnexA. between the manufacturer and the purchaser.
3 GENERAL 5 CONSTRUCfION
3.1 The size ofthe water/foam monitor is denoted 5.J The carbon steel and stainless steel waterway
by its nominal size of waterway and designated ofwaterfoam monitorshall beofwelded,screwedor
for rateddischarge capacitythrough its nozzle.The flangedjoints.Thecopperalloyor stainlesssteel of
water foammonitorshallbedesignedforminimumof as cast waterway shall be screwed or flanged joint.
1.2Nzmm'rated pressure. Allscrewedjointsexceptnozzleshall haveminimum
of20 mm threading length and epoxy based sealant
3.2 The shape ofwater foam monitor shall be so may be used for sealing purpose and threads shall
designed that it shall allow free flow ofwater with
be locked permanently with grub screw so that
minimum friction lossand maximumstabilityagainst threads will not get unscrewed during horizontal or
nozzle reaction. The manufacturer can adopt any vertical rotationofmonitor.
shape to meet the design and performance data.
5.2 The inlet flange nominal size shall be same as
3.3 The water foam monitor shall consist of
thatofwaterwaysizeofwaterfoammonitororhigher
followingmain components:
size for betterhydraulic efficiency.The water foam
monitorshallhaveswiveljointtoprovidehorizontal
a) Base flange withreduceror body,
rotation of 3600 continuous in clockwise or anti
b) Elbow orbendof180°,90°,45°orofsuitable clockwise direction. The vertical rotation shall be
angle, minimum 135°(90°upwardand45°downward).This
traversing mechanism shall be either single handle
c) Swivel joint for horizontal and vertical
bartype with manual positive locks for unattended
rotation,
operation or the worm and worm wheel type with
d) Waterwaybarrelorpipe, irreversibleself-locking for unattendedoperation.

e) Manuallock with handleorworm and worm 5.3 The water foam monitorof 100 NB to 150 NB
wheel with hand wheel, shall beworm and worm wheel type for verticaland
IS 15811 :2008
Table I Material of Construction
(Clause4.I)
SI No. Components Carbon Steel Stainless Steel Copper Alloy
Waterway Waterway Waterway
(I) (2) (3) (4) (5)
i) Inlet flange IS2002 Gr.I IS 6911 IS 318 Gr. LTB-II
IS2004 IS28Gr. II
ii) Reducer IS 1239 (Part 2) Stainless Steel IS 318 Gr. LTB-II
IS 11428 IS28 Gr. II
iii) Elbow/Bend IS4310 Stainless Steel IS 318 Gr. LTB-II
IS28Gr. II
iv) Swiveljoint and IS 318 LTB-II IS 318 LTB-II IS 318 Gr. LTB-II
worm wheel IS28 Gr.II IS28 Gr.II IS28 Gr.II
Stainless Steel
v) Worm shaft Stainless Steel Stainless Steel Stainless Steel
vi) Manual lock IS291 Stainless Steel IS 291
vii) Waterway/Barrel/Pipe Seamless Tube SeamlessSS IS 318 LTB-II
IS 1239 (Part 2) Cast Stainless Steel IS28 Gr.II
IS 11428
viii) Handle hand wheel IS 1732 IS 1732 IS 1732
IS210 IS 210 IS 210
ix) Nozzle IS617 IS 3444 IS 318 LTB-II
Gr 4450/4225 IS28 Gr.II
IS318 LTB-II
IS28 Gr.II
x) Jet ratio controller IS 318 LTB-II Stainless Steel IS 318 LTB-II
IS28 Gr.II IS28 Gr.II
xi) Drain valve IS 2004 Stainless Steel IS 778
horizontal traversing mechanism. The water foam inducting port shall have threadedjointconfirming
monitorof63and80NBshallbemanual lockorWorm to IS2643 tofacilitatethe pickuptube connectionor
and worm wheel type for vertical and horizontal it can be quick release cam lock type. The nozzle
traversing mechanism. shallbeprovidedwith pickuptube ofminimum2.5m
lengthofclearPVC suctionhosewith dip tube made
5.4 The waterfoam monitoroutletshall have either
out ofbrass,copperalloyor stainlesssteeland other
external thread confirming to IS 2643 with ClassA
end threaded or cam lock type to suit the nozzle. In
toleranceorflangejoint.Apressuregaugeatsuitable
placeofpick uptubesuitableportsshall beprovided
positionmaybeprovidedonthe waterfoam monitor
when jetratio controlleris used with the nozzle for
body or barrel. The water foam monitor may be
induction offoam concentrate.
provided with suitable water vanes in the bends or
barrels to reduce turbulence and friction loss to 5.7 The nozzlemay beprovidedwith fixor spinning
increaseperformanceofnozzle. teeth ring for better fog application. This spinning
teeth ringcan beofsame materialasthat ofnozzleor
5.5 Theaspiratingtype(foam)nozzle(foam barrels)
can benon-metallicmaterial. Thejetratiocontroller
and non-aspiratingtype nozzleshall bewith jetand
may be provided, ifnecessary for proper induction
spray/fogarrangement.Aspiratedfoamnozzlesshan
offoam concentrate.
consist mainly two parts that is body and barrel
(pipe). The body shall house the water nozzle and 6 WORKMANSHIPAND FINISH
diffuses and the foam inlet. The barrel shall be of
Thecompleteassemblyshall beofgood workmanship
suitable size that is, diameter and length to give
and finish and free from bums and sharp edges.
desiredperformance.
Particularly waterway shall have smooth finish to
5.6 The non-aspiratingnozzleshallbejetandspray reducefriction loss.
type and shallhave provisionfor quickchangeover
fromjetto full spray/fogand vice-versa under flow 7 ANTI-CORROSIVETREATMENT
condition. The inlet of nozzle shall have internal
All steelcomponentssubjectto direct watercontact
threads to IS 2643 with ClassAtoleranceor itshall
shall be hot dip galvanized after fabrication to a
be flanged joint ofsame size as that ofwater foam
minimumthicknessof0.03 mm.Thealuminiumparts

monitoroutlet size. The nozzle shall be capable of
subjecttodirectwatercontactshall be hard anodized
inducting foam concentrate. The concentrate
toaminimumthicknessof0.015 mm. The thickness
2
IS 15811:2008
of galvanizing shall be measured with suitable For expansion and foam jet reach test a foam
thicknessmeasuringmeter. concentrate shall be used.
8 LEAKAGETESTING Thedata given inTable2are for effectivereach for
water and foam in still air condition. The effective
8.1 The entire assembly shall be subjected to
reach shall be worked out as overall reach less
hydraulicpressureof2.3 N/rnm?foraperiodof5min
5percent. Spray/Fogangleshall be 120ominimum.
and there shall not be any leakage. During this test
horizontal rotation shall be carried out 5 times in Flow through monitor is total flow plus induction
clockwise and in anti-clockwise direction, then +5
vertical up and down for 5cycles. rate. The total flow shall bewithin _0 percent. The
induction rate shall be 3 percent to 4 percent for
During this test there shall be no leakage observed
3 percent induction requirement and 6 percent to
inany ofthe swivelledjoints.Afterthe above test is
7 percent for 6 percent induction requirement. The
carriedout the performancetest as given in8.1 shall
expansionratioshall be 1:4timesminimumfor non
beperformed.
aspiratingand 1:6times minimumforaspiratingtype
8.2 Thejetratiocontroller, ifprovided,then itshall and shall bemeasuredas per IS4989.
behydraulictestedat2.3 N/rnrn?foraperiodof5min
10 ACCESSORIES
and no leakage shall be observed.
The accessoriesshall include nozzle spanner.
9 PERFORMANCEREQUIREMENT
II PAINT
The water foam monitor shall be tested at monitor
inlet base/matinglflange of 0.7 Nzmm? for flow,
The water foam monitorshall bepaintedwithfirered
induction rate and horizontal reach as given in
colourconfirming to shade No. 536 or 538 ofIS5.
Table2.
The paintshallconformto IS2932.
For purposeofinductiontest, watershould be used.
Table2 Minimum Performance Requirement
(Clause9)
51No. Horizontal Water and Foam Reach
----------~-----------
Non-aspir~
r-;;onitor Size Water Discharge
mm Capacity in LPM at _----.-A.------_'"
0.7 N/mm' Nozzle
Pressure ('Effective water Effective
reachat30" foam
nozzle reachat30"
elevation. Min nozzle
elevation.Min
m m
(I) (2) (3) (4) (5)
i) 63 I 750 53 45
ii) 75 2 580 60 52
iii) 75 3000 62 54
iv) 100 3500 64 56
v) 100 3800 66 58
vi) 100 4 150 68 60
vii) 150 4 750 69 61
viii) 150 5680 72 64
ix) 150 7500 74 64
x) 150 8000 76 66
xi) 150 10000 82 74
xii) 150 1250 0 90 80
NOTE- Foraspirating type. reach shall be 10percent less.
3
IS 15811:2008
12 MARKING 2) Flow at specified pressure and foam
concentrate induction rate.
12.1 Each water foam monitorshall be clearly and
permanently marked with the following minimum 12.2 DIS Certification Marking
requirements:
The monitor may also be marked with the Standard
a) Onmonitor: Mark.
1) Manufacturer'snameand trade-mark;
12.2.1 The use ofthe Standard Mark is governed
2) Nominalsize,inmm;
by the provisionsofthe Bureau ofIndianStandards
3) Serialnumber;
Act, 1986 and the Rules and Regulations made
4) Yearofmanufacturing;and
thereunder. The details ofconditions under which
5) Maximumworkingpressure,inNzrnm'.
the licence for the use ofthe Standard Markmaybe
b) Onnozzle: granted to manufacturers or producers may be
I) Manufacturer'sname andtrade-mark,and obtained from the Bureau ofIndian Standards.
ANNEXA
(Clause 2)
LISTOFREFERREDINDIANSTANDARDS
ISNo. Title ISNo. Title
5:2004 Colours for ready mixed paints 2002: 1992 Steel plates for pressure vessels
and enamels(fifth revision) for intermediate and high
28: 1985 Phosphor bronze ingots and temperature service including
castings (fourth revision) boilers(secondrevision)
210:1993 Gray iron castings 2004 :1991 Carbonsteel forgings forgeneral
Specification(fourth revision) engineering purposes (third
291: 1989 Naval brass rods and sections revision)
for machining purposes 2643:2005 Pipethreadswherepressure-tight
Specification(thirdrevision) jointsarenot madeonthe threads
318: 1981 Specification for leaded tin - Dimensions, tolerances and
bronze, ingots and castings designation (third revision)
(secondrevision) 2932:2003 Enamel, synthetic, exterior; a)
617:1994 Aluminiumand aluminiumalloy undercoating b) finishing
ingots and castings for general Specification(thirdrevision)
engineering purposes (third 3444: 1999 Corrosion resistant high alloy
revision) steeland nickel basecastingsfor
778:1984 Specification for copper alloy general applications
gate,globeand checkvalvesfor Specification(thirdrevision)
water works purposes (fourth 4310: 1967 Welded steel pipe fittings for
revision)
marine purposes
1239:1990 Steel tubes, tubular and other 4989:2006 Foam concentrate for producing
wrought steel fittings mechanical foam for fire fighting
Specification:
- Specification
(PartI):2004 Steel tubes(sixth revision) 6911:1992 Stainless steel plate, sheet and
(Part2): 1992 Mild steel tubulars and other strip(first revision)
wroughtsteelpipefitting(fourth 11428 Specification forwroughtcarbon
revision) (Parts Ito3) : steel butt-welding pipe fittings
1732:1989 Dimension for round and square 1985
steel bars for structural and

general engineering purposes
(secondrevision)
4
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ThisIndianStandardhasbeendevelopedfromDoc:No. CED22(7308).
AmendmentsIssuedSincePublication
AmendmentNo. DateofIssue TextAffected
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