Is 14845-2000
Is 14845-2000
Is 14845-2000
REAFFIRMED 2010
Indian Standard
ICS 23.060.99
BIS 2000
October 2000
Price Group 7
AMENDMENT NO.
1 SEPTEMBER 2003
TO
IS 14845: 2000 RESILIENT SEATED CAST IRON
AIR REUEF VALVES FOR WATER WORKS
PURPOSES - SPECIFICATION
( Second cover page, Foreword, para 2, lines 4 and 5 ) layouts are shown in Fig. 6, 7, 8,9, 10 and 11'.
Delete 'Typical
(CED 3)
Reprography Unit, BIS, New Delhi, India
FOREWORD
This I ndian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Sanitary
Appliances and Water Fittings Sectional Committee had been approved by the Civil Engineering Division
Council.
Air relief valves are widely used in clear water mains in order to evacuate accumulated air under pressure, for
exhaust of air when such mains are charged with water and for ventilating the mains when they are being
emptied of water. This standard therefore has been formulated with a view to guide the manufacturers and
purchasers in the selection of appropriate type/size/rating of valves for the intended application. Typical layouts
are shown in Fig. 6, 7, 8,9, 10 and 11.
In the formulation of this standard the experience of the manufacturers and user of such valves has been kept in
view.
Certain technical details required to be supplied by the purchaser at the time of enquiry or placing orders given
in Annex A of this standard.
The composition of the technical committee responsible for the formulation of this standard is given at
Annex C.
For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,
observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with
IS 2 : 1960 'Rules for rounding off numerical values (revised)'. The number of significant places retained in
the rounded off value should be the same as that of the specified values in this standard.
IS 14845 : 2000
Indian Standard
7 SER\'ICE APPLICATION
2 REFERENCES
The Indian Standards given in Annex 8 contain
3 T\'PES
a) Single
air valve
b) I)oublc
air valve
c)
Kinetic
S Ina 11 0r ifi ce t yp e (S 1)
Large orifice type (S 2)
Standard type with in-bui It isolating
valve (OS 1), or without isolating
valves (OS 2)
Kinetic air valve (OK)
atr valve
5 NO!\lIN:\L SIZES
Air valves shall be of the following sizes:
a)
8.3 For kinetic air valves, al1flanges inc Iud i I1g that of
the isolating sluice valve shall be rnachined and drrllcd
in accordance with IS 15Jx (Parts lV and \/1). Unless
otherwise agreed to between the manufacturer and the
purchaser, flange for 50-nUll dia air val ves shu II be In
accordance with IS 780. Flanges shall be at right ~lllgle
to the axis of the inlet bore and also concentric to
bore. Flange bolt holes shall be drilled off centre.
9 f\1A TERIAL
IS 14845 : 2000
i)
itl
Due
Component I Body
SI
No.
Material
Alternatlve
Ref to
IS No.
210
Stem
320
Grade or
Designation
Material
Ref to
Grade or
Designation
IS No.
-
FG 200
HTB lor
Stainless steel
6603
HTB2
04 Cr 17
Ni 12 ~10 2
04 Cr 18Ni 10
12 Cr. 13
III)
IV)
Natural rubber
11855
318
LTB - 2
EPDM
nitrile rubber
High tensile brass
Stainless steel
v)
\,1)
VII)
vru )
ix)
x)
Stem nut
Bolts
Nuts
Carbon steel
Carbon steel
Rubber
Jute/hemp
Gasket
Gland packing
xi)
,XiI)
xu i )
Float guide
LT8 - 2
LTB- 2
318
318
1363
1363
638
5414
-
Class 4.6
Class 4
Type B
Type II[
-
318
LTB-2
320
6603
320
3444
6603
6603
-
HTB 2
04 Cr 18Ni 10
HTB 2
Gradel
-
Stainless steel
3444
320
HTS!
10.2 Body
IS 14845 : 2000
C SQ
~-----~....+++---....
\6
r------------t.~
VALVE SIZE
LEGEND
BODY
5)
2)
6)
FERRULE
3)
7)
GASKET
4)
8)
1)
VALVE
SIZE
8
(Min)
C SQ.
(Min)
15
196
118
UP TO 100
25
255
158
UPT0100
290
158
UP TO 100
40
All dimensions in
FI~ J.
1 TYPlc.\ L
millirnetres.
\7 ALVE
(Clause 10.2.4)
All dimensions In
rnillrrnctrcs.
Double Air Valve (DS J & 2)
-----~------
Smal I On ficc
PN r. PN I t.
b
PN I u
R
8
4u
)0
IU
10
In
IU
10
12
12
16
18
KO
100
10
10
13
14.5
150
20U
111
\.}
IU
10
In
13
1.2
1:2
Ih
14.5
18
IS 14845 : 2000
C SQ.
\8
(2
I
S
\4
-~1
7'
/---....
,~-
VALVE SJZE
LEGEND
1)
BODY
5)
2)
6)
FERRULE
3)
COWL
7)
4)
JOINT SUPPORT
8)
VALVE
SIZE
B
(Min)
csa.
(Min)
SUITABLE FOR
MAIN SIZE
25
202
164
UP TO 100
40
237
180
UP TO 100
50
287
180
125 To 200
FI<j.2
S2
Single Air
Valve
~---
10.5 Floats
10.5.1 rv1 inimurn float diameters shall be as indicated
in Table 3.
15
25
40
50
80
100
150
200
Small
Orifice
Large
Orifice
75
100
100
100
40
75
75
75
Double Air
Valve
Klnerlc Air
Valve
Small
Orifice
100
100
100
125
125
140
Large
Orifice
75
75
100
125
200
250
Small
Orifice
90
100
I 15
125
150
150
Large
Orifice
55
75
100
125
200
250
IS
1484~
8
19
c
I
@----------'
VAlVE
SIZE
LEGEND
1)
BODY
2)
13)
SPINDLE
3)
14)
12)
4)
VALVE
15)
5)
VALVE HOLDER
16)
6)
COWL
17)
7)
18)
VALVE DISC
8)
VALVE COVER
19)
9)
GLAND
20)
PACKINGS
10)
CAP
21)
GASKET
11)
SEAT RING
22)
23)
GUIDE BUSH
VALVE
SIZE
A
(Min)
B
(Min)
(Min)
SUITABLE FOR
MAIN SIZE
40
442
210
371
UP TO 100
50
442
210
407
125 TO 200
80
504
236
431
225 TO 350
100
634
280
501
400 TO 500
150
862
430
620
600 TO 900
200
988
506
735
1 000 TO 1 200
.-
FIG.3A
(DS 1)
: 2000
IS 14845 : 2000
LEGEND
1)
BODY
8)
2)
9)
3)
10)
4)
COWL
11)
5)
12)
GASKET
6)
COVER
13)
7)
14)
GUIDE BUSH
(Min)
(Min)
(Min)
SUITABLE FOR
MAIN SIZE
40
442
210
224
UP TO 100
50
442
210
264
125 TO 200
80
504
236
287
225 TO 350
100
634
280
356
400 TO SOO
150
862
430
476
600 TO 900
200
988
506
580
1 000 TO 1 200
VALVE
SIZE
38
IS 14145:
c
8
LEGEND
1)
BODY
7)
2)
8)
H.P 0R1ACE
H.P OA~ PLUG
3)
9)
4)
C()\A/L
10)
5)
11)
GASKET
6)
12)
13)
GUIDE BUSH
VALVE
SIZE
40
50
80
100
150
200
A
(Min)
B
(Min)
rJ
SUITABLE FOR
(Min)
MAIN SIZE
260
196
324
UP TO 100
280
211
352
125 TO 200
305
236
373
225 TO 350
360
280
424
400 TO 500
487
450
674
600 TO 900
700
506
739
1 (X)() TO 1 200
FIG.4
AIR
VALyE
(DK)
(Clause 10.6.2)
All dimensions in millimetres.
5
5
37
50
80
37
49
ring.
100
65
150
8
8
134
Valve Size
40
200
110
IS
1484~
: 2801
10.8 Cowl
It FINISH
Valve Size
1.0 MPa
1.6 MPa
40
18
22
50
80
100
150
22
22
28
28
24
24
200
32
30
32
36
13 INSPECTION
IS 14845 : 2000
Table 6 Cap for Isolating Valve
(Clause 10.11.1.4)
I-EB~
35 SQ.
TAPER 11N 20
EACH SIDE
FOR SIZE
~8
200
"A'SQ
.B
4U
15
50
~2
32
88
50
50
19
50
26
3~
88
50
RO
19
50
26
32
88
50
100
24
60
40
SO
116
hO
15U
24
60
44
50
116
60
200
28
65
44
55
121
60
14 COATING
IS 14845 : 2000
---T
F - -- - -- - ~_-+--_:=--t.",;"
PRESSURE
T
PIPE
------..I
GAUGE
<;
SHORT PIPE
+- -
PRESSURE
REGULATING
DRAIN VALVE
TEST BENCH
PRESSURE GAUGE
PRESSURE WATER
All dimensions
Fr. 5 TYPICAL
1/1 rmllirnetrcs.
V ALVES
following information:
15 MARKING
a)
b)
Nominal size;
Nominal pressure rating:
c)
Type of valve:
i) Single air valve S 1, S2, etc
d)
e)
10
IS 14845 : 2000
ANNEXA
iForewordi
ENQUIR\t/ORDER INFORMATION
g)
Type of valve;
Nominal diameter:
Nominal pressure:
End connections required;
If gunrnct a l/br a ss guides for floats are
h)
required:
f)
j)
11
1484~
IS
: 2000
ANNEXO
(Clause 2)
LIST OF REFERRED INDIAN STANDARDS
[SHo.
Title
IS No.
210:1978
318 : 1981
320: 1980
341: 1973
Tille
3444 : 1987
revisiMJ)
5414 : 1969
6418 : 1971
6603 : 1972
9862 : 1981
11855 : 1986
ANNEXC
iForewordi
CO~t1\1ITTEE
C01\1POSITION
S K CHII."H~,A.
SHf<1
VIOUR UIJASK,,A.R
Representing
Members
HYltRA.ULJ<.. EN<;INHR
DI lilTY
SlIkl
Ih\l\U.uLlc
E"'K;lNU-R
(A/lernale)
D. P. Sn,J(,Ii
SIlKI \'
SIIIZI ~1.
DI
LD
OHICH~)
tAlternatei
P. J AII>i.JRIA
511fZI5
:\I)\I~
K. SLTHI (FII
If{
A.
(PH
pury
KIl,A.N
tAlternatc i
Central Public Health and Environmental Engineering Organization, New Deihl
tN(,C,)
AIl"ISOR
(PH
EN\J\;) tAucrruuc)
DR A. K
Gun,A.
(AILernale)
(Conlinued on
12
page 13)
IS 14845 : 2000
(Continued from pap 12)
Members
Representing
CentraJ lnatitute of Plastic Engineerina and Technok>&Y. Qw:onaj
~S.K.NAYAK
SSW(NDZ-I)
SOW (NDZ-I) (Alternate)
CHIEF ENGrNEfR
M. GANGAJ.AJU
SHRI
R. P. SINGH tAlternatev
SHRI
SHIZ.I L. N. KAPOOR
SHRJ G. RASINORANATH
SH~I
RAo
S. SIVAKUMAR (Alternate)
L. D. SHARMA
SHRI
S. K.
SHRI
KAlLA
(Alternate)
J.R. A(J(iARWAL
SHRI
(Alternate)
R. K. SOMANY
SHRI
tAltemates
K. LAKSHMI NARAMANA
SHRI
A. SHARIFF (AI/ernate)
SHRI
K. K. BHAITACl1ARVYA
S. SAHA tAlternatev
SHRI
SHRI
SHRJ V. M. AGGAAWAl
S. K. NEOGI
SHRI
A. K. SEI'-KJUPTA (A/lerna/e)
SHRI
V. K. JAIN
SHRI
TECH MEMBER
CHiEf ENGINEER
SHRI
R. D. KULKAkJ~1
S. V. JADAV (A/tenrat~)
SHRl
H. K. ARORA (Alternatei
SHRI
SHPJ
iAltemate)
J. P.S. JA!S
D. K. KANUNGO
R. KAP()()R (A/lerna'_)
CHIEF ENGINEE~ (WEST)
SHRI V. K. SINHA
SHRI W. U. KHAN tAltemate)
SUPE~INTENDfNG ENGINfil TAe (Q/C)
EXEClJnVE ENGINEER TAC (AlrerfUlJe)
SHRI S. SLNDARAM
Shri S. S. SETI-lI,
SHRI
SHRI
Members
DEPt)T)' CHIEF
SHRJ P. K. Joss:
DiuC1"C* (A'l~rnate)
CHIEF ENGINEE-. (MAJNTENANCE)
OEPtrrY CHiEf ENGINEER (COMMON
WORKS MANAGER
13
page 14)
IS 14845 : 2000
(Continued/rampage 13)
R.,-unmng
Members
DEPUTY H Y~AUUC
SSW (S&S)
ENGfNEO
ASSISTANT DI~EC1"OR
ASSIST... NT INSPECTlON OmcER (AI/~ntale)
(W-III) (Alt~)
GENERAL MANAGER
SHRI RAMACHAN~ H.THAKK.U
J. R. AGGARWAL
SHRI
K. K. BHATIACHAAYYA
S. SAHA (Alterna/e)
SHKI S. J. PATLL
SHRI PRAnK PATEL (Alternate)
CHlfF E'K.lNEER
SHRI
SHRI
R. D. KULKARNI
SHRI
S. Y. JADAY tAliernates
SHRI D. K. SEHGAL
SHRI B. B. SIK/(A tAltematev
SHRI
SHHI
A. K. SEN
S. M. TANHANE (Alternat~)
SHRJ R. K. GUPTA
SHRI
R. S. DHUMAL
SHRI O. P. WADHWA (Alternate)
SlJ1UINTENDJ~ ENOINEEA (MM)
EXECUTIVE ENGINEER (MM) (Alt~rna/e)
SHRI
SH~U
J. D. CRUZ
CHIEF ENGINEU
SUPERINTENDING ENGINEil
(A lternates
14
AIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote
harmonious dcvcloprncnt of the activities of standardization, marking and quality certification of goods
BIS has the copyright of all its publications. No part of these publ ications may be reproduced in any form
the prior perrnission in wri ting of BI S. This does not prec I ude the free use, in the course of
imp lcrncnting the standard, of necessary details, such as symbols and sizes, type or grade designations.
Fn4ulri~s relating to copyright be addressed to the Director (Publications), BIS.
w 1thout
This Indian Standard has been developed from Doc: No. CEO 3 (4551).
Amend No.
Date of Issue
Text :\ffected
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