IS 8442: Stand Post Type Water and Foam Monitor for Fire Fighting--Specification (First Revision)

2008·1.3 MB·English

by  Bureau of Indian Standards (BIS)

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IS 8442 (2008): Stand Post Type Water and Foam Monitor for
Fire Fighting--Specification (First Revision). ICS
13.220.10
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Satyanarayan Gangaram Pitroda
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Indian Standard
STAND POST TYPE WATER AND FOAM MONITOR
FOR FIRE FIGHTING _. SPECIFICATION
( First Revision)
ICS 13.220.10
© BIS 2008
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN. 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
Irfay 2008 Price Group 4
Fire Fighting Sectional Committee, CED 22
FOREWORD
This Indian Standard (First Revl'sion) was adopted by the Bureau of Indian Standards, after the draft finalized by
the Fire Fighting Sectional Committee had been approved by the Civil Engineering Division Council.
Water monitors are fixed on the fire fighting appliances and are one of the important equipment used for fighting
fire. With the help of this equipment it is possible to direct the flow of water at any angle on horizontal and
vertical axis. This standard has been formulated to lay down minimum performance requirements.
When the water monitor is used with sea water, aluminium parts should not be used.
This standard was first published in 1977. The present revision includes modifications with regard to inclusion of
copper alloy and stainless steel components and figures have been modified according to various types of monitors.
The materials of construction are given in Table 2 with an idea to use compatible material for all components in
individual monitor.
For the purpose of deciding whether a particular requirement of this standard is complied with, the final vaJue,
observed or calculated, expressing the result of a test or analysis, shall be rO\1nded off in accordance with
IS 2 : 1960· Rules for rounding off numerical values (revised)t. The number of significant places retained in the
rounded off value should be the same as that of the specified value in this standard.
IS 8442 : 2008
Indian Standard
STAND POST TYPE WATER AND FOAM MONITOR
FOR FIRE FIGHTING - SPECIFICATION
(First Revision)
1 SCOPE g) Nozzle (details as given in 5.2),
This standard lays down the requirements for stand h) Handle or worm and worm wheel to facilitate
post type monitor of size 63 mm, 75 mm and 100 mm vertical rotation, and
used for fire fighting. This standard covers following j) Drain valve.
types of monitors:
4 MATERIAL
a) Water monitor, and
Material for different components shall be as per
b) Foam-cum-water monitor:
Table 2.
I) With water/foam barrel with aspirating
NOTES
type nozzle, and
2) With non-aspirating type jet/spray t Aluminium components shall not be used with sea water.
nozzle. 2 The material of cOl'lStruction to be selected as agreed (0
between the purchaser and the manufacturer keep!~~ !!! '!'!~W
2 REFERENCES the compatibility of materials.
The standards listed in Annex A contain provisions, 5 CONSTRUCTION
which through reference in this text constitute
5.1 Monitor shall have the flange of diameter
provisions of this standard. At the time of publication,
corresponding to standpost, that is, 63 mm, 75 mm
the editions indicated were valid. All standards are
and 100 mm respectively. Flanges of higher size may
suhject to revision and parties to agreements based on
be used for better hydraulic efficiency and in that case
this standard are encouraged to investigate the
it shall be welded with reducer. The swiveIjoint which
possibility of applying the most recent editions of the
shall be connected with pipe by screwing or welding
standards indicated at Annex A.
so as to have horizontal rotation of 3600 in either
3 GENERAL direction and vertical rotation of minimum 1350 (900
upward and 45° downward). Traversing mechanism
3.1 The size of water monitor is denoted by its
shall be provided to facilitate the horizontal and vertical
waterway dimension which shall be as per Table 1 or
rotation of monitor. This shall be either single handle
provided by the purchaser as per their requirement.
bar type or worm and worm wheel type. Positive locks
3.2 Monitors are designed for rated discharge capacity
shall be provided for unattended operation. In case of
of I 750 lImin for 63 mm size. 2580 lImin for 75 mm worm and worm wheel geared unit, it shall be self
size, and 3 500 l/min for 100 mm size at inlet pressure
locking type. Drain valve shall be fitted above inlet
of 0.7 N/mm2, at nozzle end. flange to drain water from water barrel after usage.
3.3 The shape of the monitor shall be so designed that
5.2 The construction of monitor shall be welded,
it shall allow free flow of water with minimum friction
screwed or flanged. All screwed joints except nozzle
loss and maximum stability against nozzle reaction.
shall have minimum threading length of 20 mm and
The shapes are generally as shown in Fig. 1 and Fig. 2.
epoxy based sealant shall be used and threads shall be
3.4 The monitor shall consist of following components: locked permanently so that threads will not get
unscrewed during horizontal or vertical rotation of
a) Base flange,
monitor. The outlet of barrel shaH have external threads
b) Reducer - wherever applicable,
confirming to IS 2643 with class A tolerance. The
c) Water barrel of seamless pipe.
nozzle shall be of standard orifice size as given in
d) Elbow 90° and 450, Fig. 3, 4 and 5 and confirming to performance
e) Swivel joint for horizontal and vertical requirements given in 9. The inlet of the nozzle shall
rotation, be provided with external hexagon or other means to
f) Lock handles for horizontal and vertical facilitate tightening of nozzle and internal threads to
rotation, suit the monitor outlet barrel size.
IS 8442 : 2008
Table 1 Flange Dimensions
(Clause 3.1)
SINo. Size of Size of Inlet Outer Bolt Circle Bolt Hole No. of Holes Thickness Flange
Monitor Flange Diameter Diameter Diameter Diameterl
(Nominal Height
Bore)
mm mm mm mm mm mm mm
(I) (2) (3) (4) (5) (6) (7) (8) (9)
i) 63 80 200 160 19 4 18
it) 63 80 190.5 152.4 19 4 23.8 127/1.6
iii) 75 100 220 180 19 4 20
iv) 75 100 220 190.5 19 4 23.8 157/1.6
v) tOO 100 220 180 19 8 20
vi) 100 100 220 190.5 19 8 23.8 157/1.6
vii) 100 150 285 240 22 8 22
viii) 100 150 280 240 22 8 25.4 216" .6
THREADS TO SUIT
NOZZLE HANDLE
SWIVEL JOINT FOR
VERTICAL ROTATION LOCK FOR VERTICAL
ROTATION
LOCK FOR HORIZONTAL
ROTATION
SWIVEL JOINT FOR
HORIZONTAL ROTATION
DRAIN VALVE
FIG. 1 STAND POST TYPE MONITOR
2
IS 8442: 2008
Table 2 Material
(Foreword, and Clause 4)
SI Component Material
No.
r-----------------------------~----------------------------
~
Mild Steel Copper Alloy Construction Stainless Steel
Construction Construction
(l) (2) (3) (4) (5)
i) Base flange Carbon steel conforming to Grade 2/3 of IS 318 or Plates. sheets conforming to IS 6911
IS 6392 or Mild steel confonning Grade 3 of IS 304
to IS 2062
ii) Reducer Pipe fittings conforming to IS Grade 2/3 of IS 3 ) 8 or Stainless steel
I t 428 (Parts 1 to 3) Grade 3 of IS 304
iii) Elbow Pipe fittings conforming to IS Grade 2/3 of IS 3 ) 8 or Stainless steel
11428 (Parts t to 3) Grade 3 of IS 304
iv) Swivel joint! Grade 2/3 of IS 318 or Grade 3 of Grade 2/3 of IS 318 or Grade 2/3 of IS 318 or
wonn and IS 304 Grade 3 of IS 304 Grade 3 of IS 304 or Stainless
worm wheel steel conforming to IS 6603
v) Lock handle Brass conforming to IS 29\ or Brass confonning to IS 291 or Stainless steel confonning to
IS 3 19 or stainless steel IS 319 or S.S. confonning to IS 6603
confonning to IS 6603 IS 6603
vi) Water barrel Mild steel confonning to IS 11428 Brass tube confonning to IS 407 Stainless steel
(Parts I to 3) or brass tube
conforming to IS 407 or
aluminium conforming to
IS 1285 and IS 2673
vii) Nozzle/Jet Copper alto}' confonninB ~9 G!1\g~ \:O}J}}\if alloy vonfonning to Drnde ~tJinl@!;~ st@@1 (!OHfBPfflift~ fa
spray nozzle 2/3 of 2/3 of IS 318 or Grade 3 of IS 304 IS 3444
IS 318 or Grade 3 of IS 304 or
aluminium alloy confonning to
Grade 4450 or 4225 oflS 6\7
viii) Handle Mild steel confonning to IS 1732 Mild steel confonning to Mild st::el confonning to IS 1732
IS 1732
ix) Wonn shaft Stainless steel conforming to Stainless steel confonning to Stainless steel confonning to
1S 6603 IS 6603 (S 6603
x) Foam barrel Brass tube conforming to IS 407 or Brass tube confonning to IS 407 or Stainless steel
aluminium conforming to IS 1285 aluminium conforming to IS 1285
and IS 2673 and IS 2673
xi) Hand wheel Cast iron conforming to Grade 200 Cast iron confonning to Grade 200 Cast iron conforming to Grade 200
oflS 210 oflS 210 oflS 210
xii) Drain valve Copper alloy confonning to IS 778 Copper alloy confonning to IS 778 Stainless steel
6 WORKMANSHIP AND FINISH of 0.7 N/mm2 at nozzle end, at an angle of 30° from
horizontal in still air condition. It shall have minimum
The complete assembly shall be of good workmanship
discharge capacity and horizontal throw as given in
and finish and free from burrs and sharp edges.
Table 3.
Particularly, waterway shall have smooth finish.
7 ANTI-CORROSIVE TREATMENT Table 3 Minimum Discharge Capacity and
Horizontal Throw of Water Monitor
All steel components subject to direct water contact shall
be hot dip galvanized after fabrication to a minimum SI No. Size Discharge Capacity Horizontal Throw
thickness of 0.03 mrn. The aluminium parts subject to Min Min
direct water contact shall be hard anodized to a minimum mm IImin m
thickness of 0.015 mm. The thickness of gal vanizing shall (I) (2) (3) (4)
be measured with suitable thickness measuring meter. i) 63 1 750 53
ii) 75 2580 60
8 PAINTING iii) 100 3 SOO 64
Monitor shall be painted with fire red or post office
red colour conforming to shade No. 536 or 538 of 9.2 Foam-cum-Water Monitor
IS 5. The paint shall conform to IS 2932.
The monitor shall be tested at operative pressure
9 PERFORMANCE REQUIREMENTS of 0.7 N/mm2 at nozzle end, at an angle of 30° from
horizontal in still air condition. It shall have
9.1 Water Monitor
minimum discharge capacity and horizontal throw
The monitor shall be tested at operative pressure as Table 4.
3
IS 8442 : 2008
WATER BARREL
HAND WHEEL FOR
VERTICAL ROTATION
THREADS TO
SUIT NOZZLE
SWIVEL JOINT FOR
VERTICAL ROTATION HAND WHEEL FOR
HORIZONTAL ROTATION
SWIVEL JOINT FOR
HORIZONTAL ROTATION
DRAIN VALVE
REDUCER
FIG. 2 STAND POST TYPE MONITOR-WORM AND WORM WHEEL TYPE
o
ORIFICE
THREADS TO
SUIT BARREL
EXTERNAL THREADS FOR
SMALLER ORIFICE TIPS
... L -----------~
NOTES
1 The Orifice Diameter for 63 mm, 75 mm, and 100 mm Size Shall be Respectively 32 mm, 38 mm. and 45 mm. Min.
2 The Length (L) of Nozzle Shall be Such as to Give Desired Performance Requirement.
FIG. 3 JET SPRAY NOZZLE
4
IS 8442 : 2008
~------ 1000APP ------~ THREADS TO
SUIT BARREL
o
-----~----G_
o
FOAM INDUCTION
BODY
PICK UP TUBE
(3000mm LONG APPROX.)
STRAINER
(600mm LONG APPROX.)
FIG. 4 AIR ASPIRATION TYPE FOAM INDUCED NOZZLE
JET·SPRAYNOZZLE
THREADS TO
SUIT BARREL
FOAM CONTROL
VALVE
PICK UP TUBE
(3000mm LONG APPROX.)
STRAINER
(600mm LONG APPROX.)
FIG. 5 NON-AIR ASPIRATING TYPE JET/SPRAY NOZZLE
5
IS 8442 : 2008
Table 4 Minimum Discharge Capacity and given in 9.1 shall be performed and assembly shall meet
Horizontal Throw Foam-cum-Water Monitor the requirements.
(Clause 9.2)
11 ACCESSORIES
SI Size Discharge Horizontal Horizontal
The accessories shall include nozzle spanner which
No. Capacity Throw Throw
(Water) (Foam) shall be optional.
Min Min Min
mm lImin m m 12 MARKING
(I) (2) (3) (4) (6)
12.1 Each monitor shall be clearly and permanently
i) 63 1750 53 45 marked with the following:
ii) 75 2580 60 50
iii) 100 3500 64 55 a) Manufacturer's name and his trade-mark.
b) Year of manufacture. and
NOTE - This shall be a type test.
c) Discharge capacity, in IImin.
10 LEAKAGE TEST 12.2 BIS Certification Marking
10.1 The entire assembly shall be hydraulically tested The monitor may also be marked with the Standard
to a pressure of 2.3 Nfmmz for 5 min and there shall Mark.
not be any 1eakage.
12.2.1 The use of the Standard Mark is governed by
10.2 The entire assembly shaH be hydraulically tested the provisions of the Bureau of Indian Standards Act,
to a pTessure of 2.3 NJmm2 and horizontal rotation shall 1986 and the Rules and Regulations made thereunder.
be carried om 5 limes and then vertical rotation up and Tnt dttails of condiHons under which the licence for
down for 5 cycles. During the test there shall be no the use of Standard Mark may be granted to
leakage observed in any of the swiveled joints. After manufacturers or producers may be obtained from the
the above test is carried out, the performance test as Bureau of Indian Standards.
ANNEXA
(Clause 2)
LIST OF REFERRED INDIAN STANDARDS
IS No. Title IS No. Title
5 : 2004 Colours for ready mixed paints and 407: 1981 Specification for brass tubes for
enamels (fifth revision) general purposes (third revision)
210: 1993 Grey iron casting - Specification 617 : 1994 Aluminium and aluminium alloy
(fourth revision) ingots and castings for general
291 : 1989 Machining purposes - Specification engineering purposes (third revision)
(third revision) 778 : 1994 Specification for copper alloy gate,
304: 1981 Specification for high tensile brass globe and check valves for water
ingots and castings (second revision) works purposes ifounh revision)
318 : 1981 Specification for leaded tin bronze 1285 : 2002 Wrought aluminium and aluminium
ingots and castings (second revision) alloys - Extruded round tube and
319: 1989 Free cutting leaded brass bars, rods hollow sections for general
and sections - S.pecification (founh engineering . purposes
revision) Specification (third revision)
6