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Project Hydraulic Design & Network modelling for Shimla Water Supply
Client Shimla Municipal Council
Work Order No. MCS/EE-Prod/-World Bank/24x7/1441, Dt: 11/08/2017
Designed By Dahasahasra Waternet Solutions,
911, C-Wing, Urvi Park, Oppo. Oswal Park,
Pokhran Road No. 2, Thane (W) 400601
Detailed Design Report
Hydraulic Design & Network modelling for Shimla Water Supply,
World Bank Program
Volume V: Pipe Thickness of Transmission and Pumping Mains
(Excluding Demo Area)
2
Table of Contents Preface .............................................................................................................................................. 3
Design of M.S. Pipe for Internal Pressure ....................................................................................... 4
Field Conditions ............................................................................................................................. 4
Analysis of Results ......................................................................................................................... 4
Procedure ...................................................................................................................................... 5
(5)Summary of New Pipes Required ............................................................................................... 7
Appendix ........................................................................................................................................... 8
Results of the Pipe Thickness ............................................................................................................. 8
Table 2: Pipe results for case of demand of 2020 and without PRVs .............................................. 8
3
Preface
Shimla is a historic hill top city and capital of the Himachal Pradesh. It has an average altitude
of 2,206 meters above mean sea level. There are no water bodies near the main city and the
closest river, the Sutlej, is about 21 km away. Due to water scarcity, people faced hardship in
getting drinking water, thus there is a water crisis in the city.
Despite acute water scarcity, water infrastructure is too old. Most of the distribution pipelines
are laid during British era, as a result the Non-revenue water (NRW) level is high and there is
no consumer satisfaction. With an aim of increasing drinking water availability to the city and
improving service level, Shimla Municipal Corporation (SMC) has a planned a comprehensive
water supply project. Government of Himachal Pradesh (GoHP) has incorporated this scheme
in AMRUT program aided by the World Bank. To begin with, a 24x7 water supply scheme has
been suggested in three Demo areas of Sanjauli1, Sanjauli2 and Totu. Design of distribution
system of these demo areas has been submitted.
As the pressures in the pipelines are very high, it is necessary to provide strong pipes to sustain
the pressures. Hence, design of pipe thickness for transmission mains have been carried out
which is submitted in this report.
4
Design Procedure
Design of M.S. Pipe for Internal Pressure
The thickness of pipe shell is required to be checked to withstand internal pressures. The
internal pressure for which the pipe thickness is required to be checked which should be the
maximum of the pressure for the three conditions given below:
1. 1.5 times working pressure
2. 1.5 times maximum static pressure
3. Maximum operating pressure plus pressure due to water hammer.
Field Conditions
Following field conditions are considered:
• Since flow in entire distribution pipe network is by gravity, water hammer pressure is
not considered. Hence, only above conditions of (1) 1.5 times working pressure and (2)
1.5 times maximum static pressure are considered and the maximum pressure shall be
the maximum of these two conditions.
• It is assumed that the pipelines are laid above ground level on RCC chairs. Design of
the chairs shall be such that the deflection shall not be more than the permissible value.
It is strongly suggested that the spacing between the two chairs should not be more than
5m. Proper expansion joints shall be provided.
Analysis of Results
From pipe results provided in Volume II, maximum pressure acting on each pipe in demo zone
is known which is considered in the design. These pressure are increased to 1.5 times as per
above conditions of internal pressure, so the maximum pressure for which pipes are to be
designed is computed.
The analysis is made for two cases, (i) pipes with Pressure reducing Valves (PRVs) and (ii)
pipes without PRVs. The pressures will be maximum for the demand of the year 2020 and
without considering the peak factor. Hence, analysis is carried out for the two cases- (a) Pipe
results with PRVs, with demand of 2020 and without peak factor of 3 and (b) Pipe results
without PRVs with demand of 2020 and without peak factor of 3. The two tables with results
are shown in Appendix. The pipe material, diameter and thickness are shown in Table (b).
5
Procedure
(1)Minimum Thickness:
As per IS 3589 : 2001, Edition 4.2, the minimum thickness of the M.S. Pipe line shall not be
less than the thickness’’, worked out by the formula given below.
2
PDT
S=
Where:
P = Internal design pressure in Mpa
D = Diameter of pipe in mm (O.D.)
S = axfxe
a = Design factor
= 0.6 for working pressure
= 0.9 for test pressure
f = minimum yield stress in MPa
= 235 MPa for Fe 410
e = Weld efficiency
= 0.8 to 0.9
Corrosion Allowance: Corrosion Allowance of 1.5 mm has been considered in the design.
Check for minimum wall thickness: If D/t ratio is less than 300, minimum wall thickness
computed as above is correct.
(2)Hydraulic Pressure Test (Factory Test)
As per IS 3589, each pipe shall be hydraulically tested at the manufacturer’s works before the
pipe is coated, wrapped and lined. The maximum test pressure to be limited to 5 MPa wherever
applicable.
(3)Vacuum Design:-
Under certain conditions of operations, water may get removed from some section of pipeline
faster than it can be supplied from the source. Such condition may occur as a result of valve
operation (sudden full opening of scour valve) or draining of pipe /rupture of pipe at a point at
low level. If at such locations the pipe is exposed to atmosphere and the thickness of the pipe
is small, air must be admitted into the pipe to prevent an excessive reduction of the internal
pressure and the subsequent collapse of the pipe throughout in portion of its length because of
external atmospheric pressure.
6
The resistance of an exposed pipe to vacuum pressure depends on thickness to diameter ratio.
As per American Practice (Errata of M11 Code), the critical collapsing pressure of mild steel
pipe can be calculated as under: 3
66,000,000c
tP
d
=
Where t = thickness in inch
And d = diameter in inch
Pc= Collapse pressure in psi
The pressure obtained shall be converted to kg/cm2 by the relationship
1 psi = 0.070307 Kg/cm2
Also as per I.S. 5822 – 1970, the pipe thickness shall be strong enough to withstand partial
vacuum corresponding to two third of the atmospheric pressure, which may occur with in the
pipe. This means the Pc shall be greater than 0.34 kg/cm2.
Water Hammer Pressure is given by:
0.5
1425 Pr ( )
1
WHWater Hammer essure PKD
Et
= +
Where K= Bulk modulus of water = 2.07E+08 Kg/m2
D = Pipe dimeter in mm = 2.07E+10 Kg/m2
E = Modulus of elasticity of pipe material=
t = Pipe thickness in mm
(4)Design Scenario
As terrain is hilly, huge pressures are encountered. Pipe thickness shall be strong enough to
withstand pressure at worst condition. Such condition shall be when the pipes are subjected to
the demand of the year 2020 and the PRv are inactive (fully open). Hence, the thickness of
pipes have been computed for this condition. Summary is shown in Table 1 and computation
are shown in Table 2 in Appendix.
7
(5)Summary of New Pipes Required
Table 2: Summary of New Pipes Required
Shimla Area
GI Heavy Duty (As per IS 1239, Part 1) MS (As per IS 3589:2001)
Grand Total 100 (t=5.4mm)
150 (t=5.4mm)
Total ID=260.4 mm
(t=6.3 mm)
ID= 309.7 mm (t=7.1
mm)
ID= 339.6 mm (t=8
mm)
ID= 388.8 mm (t=8.8
mm)
ID= 437 mm (t=10 mm)
ID= 486 mm (t=11 mm)
ID= 585 mm (t=12.5 mm)
585 Total
B_PostSanjauli_450DI 1151 53 1204 1089 1182 1149 3420 4624
D_PostRidge 33 8942 8975 1559 11 1570 10545
E_Mains_Field 412 928 1339 2295 11 256 2499 506 3011 26 8604 9943
F_Dhigodevi_Dalli 23 23 301 142 794 57 1294 1317
G_Mashobra_Craignaino 23 3826 59 56 3964 3964
H_Kusumpti 0 655 656 277 277 933
I_Jakhu 72 10 1102 1184 1184
J_PostSanjauli_North_Oak_1 6 6 6
Grand Total 1602 10600 12203 5220 1589 5394 3293 506 1161 3068 83 20312 32515
8
Appendix
Results of the Pipe Thickness
Table 2: Pipe results for case of demand of 2020 and without PRVs
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
B_PostSanjauli_450DI BP-14 GI 15.3 150 98.6
147.9 0.96 1.5 2.46 60.9 OK 20.6 OK GI 150 5.4
B_PostSanjauli_450DI BP-16 GI 0.3 150 9.99
15.0 0.10 1.5 1.60 93.9 OK 5.6 OK GI 150 5.4
B_PostSanjauli_450DI BP-17 GI 0.2 150 10
15.0 0.10 1.5 1.60 93.9 OK 5.6 OK GI 150 5.4
B_PostSanjauli_450DI BP-93 GI 420.7 100
157.12
235.7 1.02 1.5 2.52 39.6 OK 74.7 OK GI 100 5.4
B_PostSanjauli_450DI BP-94 GI 195.2 100 86.37
129.6 0.56 1.5 2.06 48.5 OK 40.8 OK GI 100 5.4
B_PostSanjauli_450DI BP-19 GI 511.5 100 49.63
74.4 0.32 1.5 1.82 54.8 OK 28.1 OK GI 100 5.4
B_PostSanjauli_450DI BP-20 GI 23.9 100 85.25
127.9 0.56 1.5 2.06 48.6 OK 40.3 OK GI 100 5.4
B_PostSanjauli_450DI BP-21 GI 5.2 150 98.6
147.9 0.96 1.5 2.46 60.9 OK 20.6 OK GI 150 5.4
B_PostSanjauli_450DI BP-22 GI 7.3 150 98.6
147.9 0.96 1.5 2.46 60.9 OK 20.6 OK GI 150 5.4
B_PostSanjauli_450DI BP-24 GI 0.6 150 92.63
138.9 0.91 1.5 2.41 62.3 OK 19.1 OK GI 150 5.4
9
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
B_PostSanjauli_450DI BP-25 GI 0.6 150 93.89
140.8 0.92 1.5 2.42 62.0 OK 19.4 OK GI 150 5.4
B_PostSanjauli_450DI BP-26 GI 1.2 150 7.32
11.0 0.07 1.5 1.57 95.4 OK 5.3 OK GI 150 5.4
B_PostSanjauli_450DI BP-27 GI 0.8 150 8
12.0 0.08 1.5 1.58 95.0 OK 5.4 OK GI 150 5.4
B_PostSanjauli_450DI BP-29 GI 0.8 150 6.33
9.5 0.06 1.5 1.56 96.0 OK 5.2 OK GI 150 5.4
B_PostSanjauli_450DI BP-30 GI 0.7 150 7
10.5 0.07 1.5 1.57 95.6 OK 5.3 OK GI 150 5.4
B_PostSanjauli_450DI BP-1 GI 8.3 150 49.63 74.4 0.49 1.5 1.99 75.6 OK 10.8 OK GI 150 5.4
B_PostSanjauli_450DI BP-2 GI 0.4 150 6.86 10.3 0.07 1.5 1.57 95.7 OK 5.3 OK GI 150 5.4
B_PostSanjauli_450DI BP-3 GI 0.2 150 7 10.5 0.07 1.5 1.57 95.6 OK 5.3 OK GI 150 5.4
B_PostSanjauli_450DI BP-5 GI 0.2 150 6.92 10.4 0.07 1.5 1.57 95.7 OK 5.3 OK GI 150 5.4
B_PostSanjauli_450DI BP-7 GI 10.3 150 53.05 79.6 0.52 1.5 2.02 74.3 OK 11.3 OK GI 150 5.4
B_PostSanjauli_450DI BP-8 GI 0.3 150 53.16 79.7 0.52 1.5 2.02 74.3 OK 11.3 OK GI 150 5.4
D_PostRidge DP-14 GI 6.1 150 17.29
25.9 0.17 1.5 1.67 89.9 OK 6.4 OK GI 150 5.4
D_PostRidge DP-18 GI 2.5 150 7.33
11.0 0.07 1.5 1.57 95.4 OK 5.3 OK GI 150 5.4
D_PostRidge DP-19 GI 2.1 150 6.07
9.1 0.06 1.5 1.56 96.2 OK 5.2 OK GI 150 5.4
D_PostRidge DP-20 GI 0.7 100 5
7.5 0.03 1.5 1.53 65.2 OK 16.7 OK GI 100 5.4
D_PostRidge DP-21 GI 1.5 100 4.92
7.4 0.03 1.5 1.53 65.3 OK 16.7 OK GI 100 5.4
D_PostRidge DP-22 GI 4.4 100 4.7
7.1 0.03 1.5 1.53 65.3 OK 16.6 OK GI 100 5.4
D_PostRidge DP-23 GI 2.5 100 5
7.5 0.03 1.5 1.53 65.2 OK 16.7 OK GI 100 5.4
10
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
D_PostRidge DP-15 GI 0.5 150 9.88
14.8 0.10 1.5 1.60 93.9 OK 5.6 OK GI 150 5.4
D_PostRidge DP-16 GI 0.7 150 10
15.0 0.10 1.5 1.60 93.9 OK 5.6 OK GI 150 5.4
D_PostRidge DP-17 GI 0.6 150
204.17
306.3 2.00 1.5 3.50 42.9 OK 58.8 OK GI 150 5.4
D_PostRidge DP-25 GI 52 150 91.78
137.7 0.90 1.5 2.40 62.6 OK 19.0 OK GI 150 5.4
D_PostRidge DP-32 GI 92.2 150 81.52
122.3 0.80 1.5 2.30 65.3 OK 16.7 OK GI 150 5.4
D_PostRidge DP-33 GI 36 150 94.81
142.2 0.93 1.5 2.43 61.8 OK 19.7 OK GI 150 5.4
D_PostRidge DP-34 GI 128.8 150
117.11
175.7 1.15 1.5 2.65 56.7 OK 25.5 OK GI 150 5.4
D_PostRidge DP-35 GI 219.3 150 82.89
124.3 0.81 1.5 2.31 64.9 OK 17.0 OK GI 150 5.4
D_PostRidge DP-38 GI 404.7 150
111.47
167.2 1.09 1.5 2.59 57.9 OK 23.9 OK GI 150 5.4
D_PostRidge DP-39 GI 118.2 150
117.11
175.7 1.15 1.5 2.65 56.7 OK 25.5 OK GI 150 5.4
D_PostRidge DP-41 GI 114.4 150 91.71
137.6 0.90 1.5 2.40 62.6 OK 18.9 OK GI 150 5.4
D_PostRidge DP-43 GI 407.6 150 73.3
110.0 0.72 1.5 2.22 67.7 OK 15.0 OK GI 150 5.4
D_PostRidge DP-44 GI 294.2 150 78.95
118.4 0.77 1.5 2.27 66.0 OK 16.1 OK GI 150 5.4
D_PostRidge DP-45 GI 242.3 150 89.38
134.1 0.87 1.5 2.37 63.2 OK 18.4 OK GI 150 5.4
D_PostRidge DP-46 GI 298.1 150 89.38
134.1 0.87 1.5 2.37 63.2 OK 18.4 OK GI 150 5.4
D_PostRidge DP-47 GI 470.8 150 94.81
142.2 0.93 1.5 2.43 61.8 OK 19.7 OK GI 150 5.4
11
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
D_PostRidge DP-51 GI 267.6 150 99.02
148.5 0.97 1.5 2.47 60.8 OK 20.7 OK GI 150 5.4
D_PostRidge DP-54 GI 287.2 150
112.13
168.2 1.10 1.5 2.60 57.8 OK 24.1 OK GI 150 5.4
D_PostRidge DP-55 GI 350.4 150 85.13
127.7 0.83 1.5 2.33 64.3 OK 17.5 OK GI 150 5.4
D_PostRidge DP-56 GI 262.1 150 81.52
122.3 0.80 1.5 2.30 65.3 OK 16.7 OK GI 150 5.4
D_PostRidge DP-59 GI
2,012.60 150
204.15
306.2 2.00 1.5 3.50 42.9 OK 58.8 OK GI 150 5.4
D_PostRidge DP-60 GI 529.5 150 99.02
148.5 0.97 1.5 2.47 60.8 OK 20.7 OK GI 150 5.4
D_PostRidge DP-61 GI 227.7 150 84.21
126.3 0.82 1.5 2.32 64.6 OK 17.2 OK GI 150 5.4
D_PostRidge DP-62 GI 352.4 150 91.71
137.6 0.90 1.5 2.40 62.6 OK 18.9 OK GI 150 5.4
D_PostRidge DP-63 GI 460.4 150
110.19
165.3 1.08 1.5 2.58 58.2 OK 23.5 OK GI 150 5.4
D_PostRidge DP-65 GI 301.1 150 98.52
147.8 0.96 1.5 2.46 60.9 OK 20.6 OK GI 150 5.4
D_PostRidge DP-57 GI 1.6 150
127.08
190.6 1.24 1.5 2.74 54.7 OK 28.4 OK GI 150 5.4
D_PostRidge DP-58 GI 405.5 150
126.88
190.3 1.24 1.5 2.74 54.7 OK 28.3 OK GI 150 5.4
D_PostRidge DP-28 GI 5.4 100 94.81
142.2 0.62 1.5 2.12 47.2 OK 44.1 OK GI 100 5.4
D_PostRidge DP-29 GI 0.8 100 94
141.0 0.61 1.5 2.11 47.3 OK 43.8 OK GI 100 5.4
D_PostRidge DP-30 GI 2.1 100
202.25
303.4 1.32 1.5 2.82 35.5 OK 103.9 OK GI 100 5.4
D_PostRidge DP-31 GI 15.7 100
204.17
306.3 1.33 1.5 2.83 35.3 OK 105.3 OK GI 100 5.4
12
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
D_PostRidge DP-52 GI 0.9 150 43.77
65.7 0.43 1.5 1.93 77.8 OK 9.9 OK GI 150 5.4
D_PostRidge DP-53 GI 100 150 43.61
65.4 0.43 1.5 1.93 77.9 OK 9.8 OK GI 150 5.4
D_PostRidge DP-66(1) GI 486.5 150
111.47
167.2 1.09 1.5 2.59 57.9 OK 23.9 OK GI 150 5.4
D_PostRidge DP-66(2) GI 5.4 150 1.21
1.8 0.01 1.5 1.51 99.2 OK 4.8 OK GI 150 5.4
E_Mains_Field EP-15 GI 0.3 150 11.01 16.5 0.11 1.5 1.61 93.3 OK 5.7 OK GI 150 5.4
E_Mains_Field EP-16 GI 5.9 150 11.01 16.5 0.11 1.5 1.61 93.3 OK 5.7 OK GI 150 5.4
E_Mains_Field EP-40 GI 0.6 150 104.7
9 157.2 1.02 1.5 2.52 59.4 OK 22.1 OK GI 150 5.4
E_Mains_Field EP-41 GI 1.1 100 91.65 137.5 0.60 1.5 2.10 47.7 OK 42.8 OK GI 100 5.4
E_Mains_Field EP-42 GI 2 150 28.41 42.6 0.28 1.5 1.78 84.4 OK 7.7 OK GI 150 5.4
E_Mains_Field EP-43 GI 3.5 150 52.94 79.4 0.52 1.5 2.02 74.3 OK 11.3 OK GI 150 5.4
E_Mains_Field EP-44 GI 4.4 150 52.35 78.5 0.51 1.5 2.01 74.6 OK 11.2 OK GI 150 5.4
E_Mains_Field EP-55 GI 22.8 150 21.48 32.2 0.21 1.5 1.71 87.7 OK 6.9 OK GI 150 5.4
E_Mains_Field EP-75 GI 105.7 100 104.7
9 157.2 0.68 1.5 2.18 45.8 OK 48.3 OK GI 100 5.4
E_Mains_Field EP-77 GI 41.1 150 97.56 146.3 0.95 1.5 2.45 61.1 OK 20.3 OK GI 150 5.4
E_Mains_Field EP-78 GI 64.3 150 38.38 57.6 0.38 1.5 1.88 80.0 OK 9.1 OK GI 150 5.4
E_Mains_Field EP-79 GI 101.4 100 52.94 79.4 0.35 1.5 1.85 54.2 OK 29.2 OK GI 100 5.4
E_Mains_Field EP-108 GI 95.9 150 93.27
139.9 0.91 1.5 2.41 62.2 OK 19.3 OK GI 150 5.4
E_Mains_Field EP-110 GI 149.3 150 52.94
79.4 0.52 1.5 2.02 74.3 OK 11.3 OK GI 150 5.4
E_Mains_Field EP-111 GI 203.6 100 91.65
137.5 0.60 1.5 2.10 47.7 OK 42.8 OK GI 100 5.4
13
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
E_Mains_Field EP-120 GI 372.5 150 28.41
42.6 0.28 1.5 1.78 84.4 OK 7.7 OK GI 150 5.4
E_Mains_Field EP-122 GI 157.6 150 99.55
149.3 0.97 1.5 2.47 60.6 OK 20.8 OK GI 150 5.4
E_Mains_Field EP-50 GI 6.9 150 104.9
3 157.4 1.03 1.5 2.53 59.4 OK 22.2 OK GI 150 5.4
E_Mains_Field EP-51 GI 0.4 150 104.9
4 157.4 1.03 1.5 2.53 59.4 OK 22.2 OK GI 150 5.4
F_Dhigodevi_Dalli FP-2 GI 0.8 150 9.17 13.8 0.09 1.5 1.59 94.4 OK 5.5 OK GI 150 5.4
F_Dhigodevi_Dalli FP-4 GI 3.6 150 9.17 13.8 0.09 1.5 1.59 94.4 OK 5.5 OK GI 150 5.4
F_Dhigodevi_Dalli FP-20 GI 10.9 150 50.62 75.9 0.50 1.5 2.00 75.2 OK 10.9 OK GI 150 5.4
F_Dhigodevi_Dalli FP-21 GI 0.4 150 50.7 76.1 0.50 1.5 2.00 75.2 OK 10.9 OK GI 150 5.4
F_Dhigodevi_Dalli FP-22 GI 5.8 150 48.55 72.8 0.47 1.5 1.97 76.0 OK 10.6 OK GI 150 5.4
F_Dhigodevi_Dalli FP-23 GI 1.3 150 48.68 73.0 0.48 1.5 1.98 75.9 OK 10.6 OK GI 150 5.4
H_Kusumpti HP-12 GI 55.2 150 21.4
32.1 0.21 1.5 1.71 87.8 OK 6.9 OK GI 150 5.4
H_Kusumpti HP-24 GI 0.6 150 10
15.0 0.10 1.5 1.60 93.9 OK 5.6 OK GI 150 5.4
H_Kusumpti HP-25 GI 1.2 150 10
15.0 0.10 1.5 1.60 93.9 OK 5.6 OK GI 150 5.4
H_Kusumpti HP-16 GI 0.5 150 9
13.5 0.09 1.5 1.59 94.5 OK 5.5 OK GI 150 5.4
H_Kusumpti HP-17 GI 1.5 150 9
13.5 0.09 1.5 1.59 94.5 OK 5.5 OK GI 150 5.4
H_Kusumpti HP-22 GI 0.6 150 9
13.5 0.09 1.5 1.59 94.5 OK 5.5 OK GI 150 5.4
H_Kusumpti HP-23 GI 0.7 150 9
13.5 0.09 1.5 1.59 94.5 OK 5.5 OK GI 150 5.4
H_Kusumpti HP-20 GI 0.6 150 8
12.0 0.08 1.5 1.58 95.0 OK 5.4 OK GI 150 5.4
14
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
H_Kusumpti HP-21 GI 0.6 150 7.75
11.6 0.08 1.5 1.58 95.2 OK 5.4 OK GI 150 5.4
H_Kusumpti HP-1 GI 0.4 150 10 15.0 0.10 1.5 1.60 93.9 OK 5.6 OK GI 150 5.4
H_Kusumpti HP-4 GI 0.3 150 8.13 12.2 0.08 1.5 1.58 95.0 OK 5.4 OK GI 150 5.4
H_Kusumpti HP-5 GI 0.2 150 8.13 12.2 0.08 1.5 1.58 95.0 OK 5.4 OK GI 150 5.4
H_Kusumpti HP-35 GI 167.9 150 23.61
35.4 0.23 1.5 1.73 86.7 OK 7.1 OK GI 150 5.4
H_Kusumpti HP-26 GI 0.4 150 9.92
14.9 0.10 1.5 1.60 93.9 OK 5.6 OK GI 150 5.4
H_Kusumpti HP-86 GI 0.4 100 7.74
11.6 0.05 1.5 1.55 64.5 OK 17.3 OK GI 100 5.4
H_Kusumpti HP-43 GI 0.3 150 7.74
11.6 0.08 1.5 1.58 95.2 OK 5.4 OK GI 150 5.4
H_Kusumpti HP-65 GI 21.5 150 33.47
50.2 0.33 1.5 1.83 82.1 OK 8.4 OK GI 150 5.4
H_Kusumpti HP-66 GI 0.4 150 28.02
42.0 0.27 1.5 1.77 84.6 OK 7.7 OK GI 150 5.4
H_Kusumpti HP-63 GI 13.2 150 33.47
50.2 0.33 1.5 1.83 82.1 OK 8.4 OK GI 150 5.4
H_Kusumpti HP-64 GI 0.5 150 28.1
42.2 0.27 1.5 1.77 84.5 OK 7.7 OK GI 150 5.4
H_Kusumpti HP-61 GI 15.3 150 33.27
49.9 0.33 1.5 1.83 82.2 OK 8.4 OK GI 150 5.4
H_Kusumpti HP-62 GI 0.5 150 28.08
42.1 0.27 1.5 1.77 84.5 OK 7.7 OK GI 150 5.4
H_Kusumpti HP-39 GI 5.6 150 53.34
80.0 0.52 1.5 2.02 74.2 OK 11.4 OK GI 150 5.4
H_Kusumpti HP-40 GI 0.5 150 50.81
76.2 0.50 1.5 2.00 75.1 OK 10.9 OK GI 150 5.4
H_Kusumpti HP-82 GI 186.1 150 76.9
115.4 0.75 1.5 2.25 66.6 OK 15.7 OK GI 150 5.4
15
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
H_Kusumpti HP-83 GI 0.6 150 77.08
115.6 0.75 1.5 2.25 66.6 OK 15.7 OK GI 150 5.4
H_Kusumpti HP-84 GI 0.6 150 10.18
15.3 0.10 1.5 1.60 93.8 OK 5.6 OK GI 150 5.4
H_Kusumpti HP-85 GI 0.6 150 10.18
15.3 0.10 1.5 1.60 93.8 OK 5.6 OK GI 150 5.4
H_Kusumpti HP-67 GI 166 150 23.61
35.4 0.23 1.5 1.73 86.7 OK 7.1 OK GI 150 5.4
H_Kusumpti HP-68 GI 0.3 150 19.73
29.6 0.19 1.5 1.69 88.6 OK 6.7 OK GI 150 5.4
H_Kusumpti HP-42 GI 0.3 150 7.63
11.4 0.07 1.5 1.57 95.3 OK 5.4 OK GI 150 5.4
H_Kusumpti HP-41 GI 12.2 150 8.37
12.6 0.08 1.5 1.58 94.8 OK 5.4 OK GI 150 5.4
J_PostSanjauli_North_Oak_1 JP-5 GI 2.3 100 0
0.0 0.00 1.5 1.50 66.7 OK 15.7 OK GI 100 5.4
J_PostSanjauli_North_Oak_1 JP-6 GI 3.5 100 -1.62
-2.4 -0.01 1.5 1.49 67.1 OK 15.3 OK GI 100 5.4
B_PostSanjauli_450DI BP-31 MS 77.6 206.5 94.96
142.4 1.28 1.5 2.78 74.3 OK 11.3 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-32 MS 9.5 309.7
115.14
172.7 2.33 1.5 3.83 81.0 OK 8.7 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-33 MS 0.1 309.7
115.13
172.7 2.32 1.5 3.82 81.0 OK 8.7 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-34 MS 0.1 309.7
115.13
172.7 2.32 1.5 3.82 81.0 OK 8.7 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-36 MS 0.2 309.7 14.01
21.0 0.28 1.5 1.78 173.
7 OK 0.9 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-38 MS 1 260.4 79.96
119.9 1.36 1.5 2.86 91.1 OK 6.1 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-40 MS 0.9 206.5 76.28
114.4 1.03 1.5 2.53 81.7 OK 8.5 OK GI 206.5 6.3
16
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
B_PostSanjauli_450DI BP-42 MS 10.3 309.7 76.63
114.9 1.55 1.5 3.05 101.
6 OK 4.4 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-43 MS 0.6 309.7 76.64
115.0 1.55 1.5 3.05 101.
6 OK 4.4 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-44 MS 27.1 206.5
120.79
181.2 1.63 1.5 3.13 66.1 OK 16.1 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-45 MS 1.3 206.5 9.14
13.7 0.12 1.5 1.62 127.
2 OK 2.3 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-46 MS 0.5 206.5 9.14
13.7 0.12 1.5 1.62 127.
2 OK 2.3 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-47 MS 0.6 206.5 13.34
20.0 0.18 1.5 1.68 122.
9 OK 2.5 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-48 MS 123.5 260.4 86.69
130.0 1.47 1.5 2.97 87.6 OK 6.9 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-49 MS 131.2 260.4 79.96
119.9 1.36 1.5 2.86 91.1 OK 6.1 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-50 MS 71.3 260.4 76.28
114.4 1.30 1.5 2.80 93.2 OK 5.7 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-51 MS 137.2 309.7 29.36
44.0 0.59 1.5 2.09 148.
0 OK 1.4 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-52 MS 93.7 309.7 29.36
44.0 0.59 1.5 2.09 148.
0 OK 1.4 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-53 MS 28.9 309.7 26.6
39.9 0.54 1.5 2.04 152.
0 OK 1.3 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-54 MS 69.4 260.4
122.17
183.3 2.07 1.5 3.57 72.9 OK 12.0 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-55 MS 105.2 260.4 90.63
135.9 1.54 1.5 3.04 85.7 OK 7.4 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-56 MS 307.8 206.5 76.63
114.9 1.03 1.5 2.53 81.6 OK 8.6 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-57 MS 171.3 309.7 64.93
97.4 1.31 1.5 2.81 110.
2 OK 3.5 OK GI 309.7 7.1
17
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
B_PostSanjauli_450DI BP-58 MS 694.9 309.7 64.93
97.4 1.31 1.5 2.81 110.
2 OK 3.5 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-59 MS 661.3 260.4
122.17
183.3 2.07 1.5 3.57 72.9 OK 12.0 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-60 MS 654.4 206.5
120.79
181.2 1.63 1.5 3.13 66.1 OK 16.1 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-61 MS 1.2 309.7 26.6
39.9 0.54 1.5 2.04 152.
0 OK 1.3 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-62 MS 0.3 309.7 23.31
35.0 0.47 1.5 1.97 157.
2 OK 1.2 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-63 MS 0.3 309.7 8
12.0 0.16 1.5 1.66 186.
4 OK 0.7 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-64 MS 0.4 309.7 7.14
10.7 0.14 1.5 1.64 188.
4 OK 0.7 OK GI 309.7 7.1
B_PostSanjauli_450DI BP-95 MS 0.2 206.5 8
12.0 0.11 1.5 1.61 128.
4 OK 2.2 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-96 MS 0.2 206.5 6.26
9.4 0.08 1.5 1.58 130.
3 OK 2.1 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-65 MS 0.5 206.5
100.85
151.3 1.36 1.5 2.86 72.3 OK 12.3 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-66 MS 17.4 206.5
100.68
151.0 1.36 1.5 2.86 72.3 OK 12.3 OK GI 206.5 6.3
B_PostSanjauli_450DI BP-9 MS 18.2 260.4 52.34 78.5 0.89 1.5 2.39
109.
0 OK 3.6 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-10 MS 0.2 260.4 48.74
73.1 0.83 1.5 2.33 111.
9 OK 3.3 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-11 MS 0.1 260.4 85.44
128.2 1.45 1.5 2.95 88.3 OK 6.8 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-12 MS 0.4 260.4 85.39
128.1 1.45 1.5 2.95 88.3 OK 6.7 OK GI 260.4 6.3
B_PostSanjauli_450DI BP-97 MS 0.3 206.5 65.11
97.7 0.88 1.5 2.38 86.9 OK 7.1 OK GI 206.5 6.3
18
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
B_PostSanjauli_450DI BP-98 MS 0.1 206.5 62.85
94.3 0.85 1.5 2.35 88.0 OK 6.8 OK GI 206.5 6.3
D_PostRidge DP-1 MS 0.8 206.5 112.2
6 168.4 1.51 1.5 3.01 68.6 OK 14.4 OK GI 206.5 6.3
D_PostRidge DP-8 MS 11.8 206.5 51.23 76.8 0.69 1.5 2.19 94.3 OK 5.5 OK GI 206.5 6.3
D_PostRidge DP-3 MS 1.9 309.7 8.5 12.8 0.17 1.5 1.67
185.
3 OK 0.7 OK GI 309.7 7.1
D_PostRidge DP-2 MS 1.1 309.7 8.5 12.8 0.17 1.5 1.67
185.
3 OK 0.7 OK GI 309.7 7.1
D_PostRidge DP-9 MS 1.4 206.5 11 16.5 0.15 1.5 1.65
125.
3 OK 2.4 OK GI 206.5 6.3
D_PostRidge DP-11 MS 2.2 206.5 11
16.5 0.15 1.5 1.65 125.
3 OK 2.4 OK GI 206.5 6.3
D_PostRidge DP-6 MS 2.4 309.7 97.43 146.1 1.97 1.5 3.47 89.3 OK 6.5 OK GI 309.7 7.1
D_PostRidge DP-7 MS 2.2 309.7 16.14 24.2 0.33 1.5 1.83
169.
6 OK 1.0 OK GI 309.7 7.1
D_PostRidge DP-24 MS 55.9 206.5
114.45
171.7 1.54 1.5 3.04 67.9 OK 14.8 OK GI 206.5 6.3
D_PostRidge DP-49 MS 207.9 206.5 73.6
110.4 0.99 1.5 2.49 82.9 OK 8.1 OK GI 206.5 6.3
D_PostRidge DP-50 MS 959.9 206.5
204.17
306.3 2.75 1.5 4.25 48.6 OK 40.4 OK GI 206.5 6.3
D_PostRidge DP-64 MS 85 206.5
114.45
171.7 1.54 1.5 3.04 67.9 OK 14.8 OK GI 206.5 6.3
D_PostRidge DP-26 MS 2.5 309.7 99.72
149.6 2.01 1.5 3.51 88.1 OK 6.8 OK GI 309.7 7.1
D_PostRidge DP-27 MS 1 309.7 100.2
150.3 2.02 1.5 3.52 87.9 OK 6.8 OK GI 309.7 7.1
D_PostRidge DP-36 MS 233.4 206.5 37.51
56.3 0.51 1.5 2.01 103.
0 OK 4.2 OK GI 206.5 6.3
D_PostRidge DP-37 MS 0.7 206.5 37.52
56.3 0.51 1.5 2.01 103.
0 OK 4.2 OK GI 206.5 6.3
19
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
E_Mains_Field EP-21 MS 2.4 206.5 91.75 137.6 1.24 1.5 2.74 75.5 OK 10.8 OK GI 206.5 6.3
E_Mains_Field EP-27 MS 0.6 206.5 9 13.5 0.12 1.5 1.62
127.
4 OK 2.2 OK GI 206.5 6.3
E_Mains_Field EP-28 MS 0.8 206.5 8.81 13.2 0.12 1.5 1.62
127.
6 OK 2.2 OK GI 206.5 6.3
E_Mains_Field EP-31 MS 0.2 206.5 8.04 12.1 0.11 1.5 1.61
128.
4 OK 2.2 OK GI 206.5 6.3
E_Mains_Field EP-7 MS 0.5 206.5 34.93 52.4 0.47 1.5 1.97
104.
8 OK 4.0 OK GI 206.5 6.3
E_Mains_Field EP-13 MS 3.8 309.7 7.76 11.6 0.16 1.5 1.66
186.
9 OK 0.7 OK GI 309.7 7.1
E_Mains_Field EP-12 MS 3.5 309.7 7.59 11.4 0.15 1.5 1.65
187.
3 OK 0.7 OK GI 309.7 7.1
E_Mains_Field EP-36 MS 3.4 309.7 18.1 27.2 0.37 1.5 1.87
166.
0 OK 1.0 OK GI 309.7 7.1
E_Mains_Field EP-5 MS 0.2 309.7 5 7.5 0.10 1.5 1.60
193.
4 OK 0.6 OK GI 309.7 7.1
E_Mains_Field EP-30 MS 0.2 206.5 8.04 12.1 0.11 1.5 1.61
128.
4 OK 2.2 OK GI 206.5 6.3
E_Mains_Field EP-37 MS 0.2 206.5 58.96 88.4 0.79 1.5 2.29 90.0 OK 6.4 OK GI 206.5 6.3
E_Mains_Field EP-29 MS 0.1 206.5 8.04 12.1 0.11 1.5 1.61
128.
4 OK 2.2 OK GI 206.5 6.3
E_Mains_Field EP-26 MS 0.2 206.5 58.96 88.4 0.79 1.5 2.29 90.0 OK 6.4 OK GI 206.5 6.3
E_Mains_Field EP-35 MS 0.3 206.5 35.01 52.5 0.47 1.5 1.97
104.
7 OK 4.0 OK GI 206.5 6.3
E_Mains_Field EP-6 MS 0.2 309.7 5 7.5 0.10 1.5 1.60
193.
4 OK 0.6 OK GI 309.7 7.1
E_Mains_Field EP-34 MS 4.6 309.7 38.28 57.4 0.77 1.5 2.27
136.
3 OK 1.8 OK GI 309.7 7.1
E_Mains_Field EP-1 MS 44 309.7 15.98 24.0 0.32 1.5 1.82
169.
9 OK 0.9 OK GI 309.7 7.1
E_Mains_Field EP-11 MS 1.2 260.4 118.2
7 177.4 2.01 1.5 3.51 74.2 OK 11.3 OK GI 260.4 6.3
20
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
E_Mains_Field EP-14 MS 0.7 339.6 117.7
2 176.6 2.61 1.5 4.11 82.7 OK 8.2 OK GI 339.6 8
E_Mains_Field EP-24 MS 17.3 309.7 8.16 12.2 0.16 1.5 1.66
186.
0 OK 0.7 OK GI 309.7 7.1
E_Mains_Field EP-25 MS 0.7 309.7 8.16 12.2 0.16 1.5 1.66
186.
0 OK 0.7 OK GI 309.7 7.1
E_Mains_Field EP-38 MS 0.5 309.7 5 7.5 0.10 1.5 1.60
193.
4 OK 0.6 OK GI 309.7 7.1
E_Mains_Field EP-39 MS 0.7 309.7 4.94 7.4 0.10 1.5 1.60
193.
6 OK 0.6 OK GI 309.7 7.1
E_Mains_Field EP-9 MS 0.5 486 5 7.5 0.16 1.5 1.66
293.
0 OK 0.2
Increas
e T GI 486 11
E_Mains_Field EP-10 MS 0.7 486 4.93 7.4 0.16 1.5 1.66
293.
4 OK 0.2
Increas
e T GI 486 11
E_Mains_Field EP-157 MS 0.7 585 5
7.5 0.19 1.5 1.69 346.
0
Increase t
0.1 Increas
e T GI 585 12.5
E_Mains_Field EP-158 MS 1 585 4.82
7.2 0.18 1.5 1.68 347.
4
Increase t
0.1 Increas
e T GI 585 12.5
E_Mains_Field EP-19 MS 0.5 486 5 7.5 0.16 1.5 1.66
293.
0 OK 0.2
Increas
e T GI 486 11
E_Mains_Field EP-20 MS 0.5 486 4.87 7.3 0.15 1.5 1.65
293.
8 OK 0.2
Increas
e T GI 486 11
E_Mains_Field EP-4 MS 0.7 388.8 66.22 99.3 1.68 1.5 3.18
122.
3 OK 2.5 OK GI 388.8 8.8
E_Mains_Field EP-2 MS 0.6 388.8 5.43 8.1 0.14 1.5 1.64
237.
4 OK 0.3 OK GI 388.8 8.8
E_Mains_Field EP-17 MS 0.5 206.5 5.36 8.0 0.07 1.5 1.57
131.
3 OK 2.0 OK GI 206.5 6.3
E_Mains_Field EP-18 MS 0.6 206.5 5.75 8.6 0.08 1.5 1.58
130.
9 OK 2.1 OK GI 206.5 6.3
E_Mains_Field EP-22 MS 0.3 309.7 5.14 7.7 0.10 1.5 1.60
193.
1 OK 0.6 OK GI 309.7 7.1
E_Mains_Field EP-23 MS 0.4 309.7 5.3 8.0 0.11 1.5 1.61
192.
7 OK 0.6 OK GI 309.7 7.1
21
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
E_Mains_Field EP-3 MS 0.5 388.8 5.2 7.8 0.13 1.5 1.63
238.
3 OK 0.3 OK GI 388.8 8.8
E_Mains_Field EP-45 MS 0.9 206.5 5.11 7.7 0.07 1.5 1.57
131.
6 OK 2.0 OK GI 206.5 6.3
E_Mains_Field EP-46 MS 0.9 206.5 5.24 7.9 0.07 1.5 1.57
131.
5 OK 2.0 OK GI 206.5 6.3
E_Mains_Field EP-52 MS 2 309.7 16.84 25.3 0.34 1.5 1.84
168.
3 OK 1.0 OK GI 309.7 7.1
E_Mains_Field EP-53 MS 8.4 260.4 117.2
8 175.9 1.99 1.5 3.49 74.6 OK 11.2 OK GI 260.4 6.3
E_Mains_Field EP-54 MS 37.8 388.8 15.98 24.0 0.41 1.5 1.91
204.
1 OK 0.5 OK GI 388.8 8.8
E_Mains_Field EP-74 MS 98.5 486 31.38 47.1 0.99 1.5 2.49
194.
8 OK 0.6 OK GI 486 11
E_Mains_Field EP-76 MS 73.8 486 38.28 57.4 1.21 1.5 2.71
179.
1 OK 0.8 OK GI 486 11
E_Mains_Field EP-80 MS 23.2 206.5 8.16 12.2 0.11 1.5 1.61
128.
3 OK 2.2 OK GI 206.5 6.3
E_Mains_Field EP-81 MS 82.8 206.5 84.29 126.4 1.13 1.5 2.63 78.4 OK 9.6 OK GI 206.5 6.3
E_Mains_Field EP-161 MS 104.3 388.8 60.81
91.2 1.54 1.5 3.04 127.
8 OK 2.2 OK GI 388.8 8.8
E_Mains_Field EP-82 MS 68.8 206.5 50.41 75.6 0.68 1.5 2.18 94.8 OK 5.5 OK GI 206.5 6.3
E_Mains_Field EP-89 MS 45 339.6 117.1
9 175.8 2.59 1.5 4.09 82.9 OK 8.1 OK GI 339.6 8
E_Mains_Field EP-90 MS 85.2 339.6 85.25 127.9 1.89 1.5 3.39
100.
2 OK 4.6 OK GI 339.6 8
E_Mains_Field EP-95 MS 190.8 206.5 39.29 58.9 0.53 1.5 2.03
101.
8 OK 4.4 OK GI 206.5 6.3
E_Mains_Field EP-164 MS 136.9 388.8 60.81
91.2 1.54 1.5 3.04 127.
8 OK 2.2 OK GI 388.8 8.8
E_Mains_Field EP-165 MS 223.5 388.8 56.35
84.5 1.43 1.5 2.93 132.
8 OK 2.0 OK GI 388.8 8.8
22
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
E_Mains_Field EP-96 MS 86.8 206.5 16.28 24.4 0.22 1.5 1.72
120.
1 OK 2.7 OK GI 206.5 6.3
E_Mains_Field EP-97 MS 114.8 206.5 39.14 58.7 0.53 1.5 2.03
101.
9 OK 4.4 OK GI 206.5 6.3
E_Mains_Field EP-98 MS 132.1 206.5 50.41 75.6 0.68 1.5 2.18 94.8 OK 5.5 OK GI 206.5 6.3
E_Mains_Field EP-103 MS 56.2 486 33.83
50.7 1.07 1.5 2.57 189.
0 OK 0.7 OK GI 486 11
E_Mains_Field EP-104 MS 183.8 486 33.83
50.7 1.07 1.5 2.57 189.
0 OK 0.7 OK GI 486 11
E_Mains_Field EP-105 MS 570.9 486 31.38
47.1 0.99 1.5 2.49 194.
8 OK 0.6 OK GI 486 11
E_Mains_Field EP-109 MS 185.2 206.5
118.27
177.4 1.59 1.5 3.09 66.8 OK 15.6 OK GI 206.5 6.3
E_Mains_Field EP-112 MS 38.1 206.5
110.66
166.0 1.49 1.5 2.99 69.1 OK 14.1 OK GI 206.5 6.3
E_Mains_Field EP-113 MS 114.4 206.5 69.69
104.5 0.94 1.5 2.44 84.7 OK 7.6 OK GI 206.5 6.3
E_Mains_Field EP-114 MS 481.6 486 1.2
1.8 0.04 1.5 1.54 316.
0
Increase t
0.1 Increas
e T GI 486 11
E_Mains_Field EP-115 MS 125 309.7 65.92
98.9 1.33 1.5 2.83 109.
4 OK 3.5 OK GI 309.7 7.1
E_Mains_Field EP-118 MS 617.5 339.6
124.88
187.3 2.77 1.5 4.27 79.6 OK 9.2 OK GI 339.6 8
E_Mains_Field EP-119 MS 471 486 84.5
126.8 2.68 1.5 4.18 116.
3 OK 2.9 OK GI 486 11
E_Mains_Field EP-121 MS 154.1 206.5
106.35
159.5 1.43 1.5 2.93 70.4 OK 13.3 OK GI 206.5 6.3
E_Mains_Field EP-123 MS 813.9 339.6
124.88
187.3 2.77 1.5 4.27 79.6 OK 9.2 OK GI 339.6 8
E_Mains_Field EP-124 MS 822.1 339.6
103.05
154.6 2.28 1.5 3.78 89.8 OK 6.4 OK GI 339.6 8
23
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
E_Mains_Field EP-159 MS 5.4 585 -0.7
-1.1 -0.03 1.5 1.47 397.
1
Increase t
0.1 Increas
e T GI 585 12.5
E_Mains_Field EP-160 MS 1.1 585 0
0.0 0.00 1.5 1.50 390.
0
Increase t
0.1 Increas
e T GI 585 12.5
E_Mains_Field EP-162 MS 8.2 585 46.41
69.6 1.77 1.5 3.27 178.
9 OK 0.8 OK GI 585 12.5
E_Mains_Field EP-163 MS 0.4 585 44.4
66.6 1.69 1.5 3.19 183.
2 OK 0.8 OK GI 585 12.5
E_Mains_Field EP-70 MS 1.1 585 0.15 0.2 0.01 1.5 1.51
388.
5
Increase t
0.1 Increas
e T GI 585 12.5
E_Mains_Field EP-71 MS 8 585 1.2 1.8 0.05 1.5 1.55
378.
5
Increase t
0.1 Increas
e T GI 585 12.5
E_Mains_Field EP-56 MS 1.1 486 21.1 31.7 0.67 1.5 2.17
224.
1 OK 0.4 OK GI 486 11
E_Mains_Field EP-57 MS 0.4 486 20.79 31.2 0.66 1.5 2.16
225.
1 OK 0.4 OK GI 486 11
E_Mains_Field EP-125 MS 0.3 486 0.03
0.0 0.00 1.5 1.50 323.
8
Increase t
0.1 Increas
e T GI 486 11
E_Mains_Field EP-126 MS 850.4 486 84.5
126.8 2.68 1.5 4.18 116.
3 OK 2.9 OK GI 486 11
E_Mains_Field EP-83 MS 13.2 309.7 48.07 72.1 0.97 1.5 2.47
125.
3 OK 2.4 OK GI 309.7 7.1
E_Mains_Field EP-84 MS 0.3 309.7 44.86 67.3 0.91 1.5 2.41
128.
7 OK 2.2 OK GI 309.7 7.1
E_Mains_Field EP-93 MS 206.5 486 46.44 69.7 1.47 1.5 2.97
163.
5 OK 1.1 OK GI 486 11
E_Mains_Field EP-94 MS 0.3 486 46.46 69.7 1.47 1.5 2.97
163.
5 OK 1.1 OK GI 486 11
E_Mains_Field EP-99 MS 13.8 486 7.43 11.1 0.24 1.5 1.74
280.
0 OK 0.2
Increas
e T GI 486 11
E_Mains_Field EP-100 MS 0.4 486 0.23
0.3 0.01 1.5 1.51 322.
4
Increase t
0.1 Increas
e T GI 486 11
E_Mains_Field EP-64 MS 1 206.5 39.95 59.9 0.54 1.5 2.04
101.
3 OK 4.5 OK GI 206.5 6.3
24
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
E_Mains_Field EP-65 MS 0.4 206.5 40.21 60.3 0.54 1.5 2.04
101.
2 OK 4.5 OK GI 206.5 6.3
E_Mains_Field EP-66 MS 0.5 309.7 0.41 0.6 0.01 1.5 1.51
205.
3 OK 0.5 OK GI 309.7 7.1
E_Mains_Field EP-67 MS 0.7 309.7 0.95 1.4 0.02 1.5 1.52
203.
9 OK 0.5 OK GI 309.7 7.1
E_Mains_Field EP-68 MS 0.8 309.7 106.6
5 160.0 2.15 1.5 3.65 84.8 OK 7.6 OK GI 309.7 7.1
E_Mains_Field EP-69 MS 0.3 309.7 106.7
6 160.1 2.16 1.5 3.66 84.7 OK 7.6 OK GI 309.7 7.1
E_Mains_Field EP-116 MS 0.8 206.5 0.04
0.1 0.00 1.5 1.50 137.
6 OK 1.8 OK GI 206.5 6.3
E_Mains_Field EP-117 MS 274 206.5 16.28
24.4 0.22 1.5 1.72 120.
1 OK 2.7 OK GI 206.5 6.3
E_Mains_Field EP-127 MS 0.7 206.5 0.05
0.1 0.00 1.5 1.50 137.
6 OK 1.8 OK GI 206.5 6.3
E_Mains_Field EP-128 MS 555.3 206.5 35.55
53.3 0.48 1.5 1.98 104.
4 OK 4.1 OK GI 206.5 6.3
E_Mains_Field EP-106 MS 109.6 206.5 39.14
58.7 0.53 1.5 2.03 101.
9 OK 4.4 OK GI 206.5 6.3
E_Mains_Field EP-107 MS 0.6 206.5 22.84
34.3 0.31 1.5 1.81 114.
2 OK 3.1 OK GI 206.5 6.3
E_Mains_Field EP-91 MS 136.2 206.5 44.88 67.3 0.60 1.5 2.10 98.1 OK 4.9 OK GI 206.5 6.3
E_Mains_Field EP-92 MS 0.2 206.5 44.89 67.3 0.60 1.5 2.10 98.1 OK 4.9 OK GI 206.5 6.3
E_Mains_Field EP-72 MS 5.3 206.5 75.83 113.7 1.02 1.5 2.52 81.9 OK 8.4 OK GI 206.5 6.3
E_Mains_Field EP-73 MS 0.4 206.5 75.88 113.8 1.02 1.5 2.52 81.9 OK 8.5 OK GI 206.5 6.3
E_Mains_Field EP-87 MS 0.9 309.7 0.72 1.1 0.01 1.5 1.51
204.
5 OK 0.5 OK GI 309.7 7.1
E_Mains_Field EP-88 MS 31.5 309.7 25.14 37.7 0.51 1.5 2.01
154.
3 OK 1.3 OK GI 309.7 7.1
25
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
E_Mains_Field EP-85 MS 10.2 206.5 5.19 7.8 0.07 1.5 1.57
131.
5 OK 2.0 OK GI 206.5 6.3
E_Mains_Field EP-86 MS 0.5 206.5 0.22 0.3 0.00 1.5 1.50
137.
4 OK 1.8 OK GI 206.5 6.3
E_Mains_Field EP-58 MS 0.3 388.8 66.71 100.1 1.69 1.5 3.19
121.
8 OK 2.6 OK GI 388.8 8.8
E_Mains_Field EP-59 MS 0.9 388.8 66.58 99.9 1.69 1.5 3.19
122.
0 OK 2.6 OK GI 388.8 8.8
E_Mains_Field EP-60 MS 0.7 260.4 0.41 0.6 0.01 1.5 1.51
172.
8 OK 0.9 OK GI 260.4 6.3
E_Mains_Field EP-61 MS 0.9 260.4 0.93 1.4 0.02 1.5 1.52
171.
8 OK 0.9 OK GI 260.4 6.3
E_Mains_Field EP-101 MS 1 309.7 0.6
0.9 0.01 1.5 1.51 204.
8 OK 0.5 OK GI 309.7 7.1
E_Mains_Field EP-102 MS 114.5 339.6 67.45
101.2 1.49 1.5 2.99 113.
4 OK 3.2 OK GI 339.6 8
E_Mains_Field EP-48 MS 0.2 309.7 36.17 54.3 0.73 1.5 2.23
138.
9 OK 1.7 OK GI 309.7 7.1
E_Mains_Field EP-49 MS 0.1 309.7 36.17 54.3 0.73 1.5 2.23
138.
9 OK 1.7 OK GI 309.7 7.1
F_Dhigodevi_Dalli FP-16 MS 295.8 260.4 119.6
6 179.5 2.03 1.5 3.53 73.7 OK 11.6 OK GI 260.4 6.3
F_Dhigodevi_Dalli FP-7 MS 142.4 339.6 95.23 142.8 2.11 1.5 3.61 94.1 OK 5.6 OK GI 339.6 8
F_Dhigodevi_Dalli FP-1 MS 7 309.7 5.42 8.1 0.11 1.5 1.61
192.
4 OK 0.7 OK GI 309.7 7.1
F_Dhigodevi_Dalli FP-3 MS 0.5 309.7 5.03 7.5 0.10 1.5 1.60
193.
4 OK 0.6 OK GI 309.7 7.1
F_Dhigodevi_Dalli FP-10 MS 13.4 309.7 10 15.0 0.20 1.5 1.70
182.
0 OK 0.8 OK GI 309.7 7.1
F_Dhigodevi_Dalli FP-11 MS 1.4 309.7 10 15.0 0.20 1.5 1.70
182.
0 OK 0.8 OK GI 309.7 7.1
F_Dhigodevi_Dalli FP-5 MS 10.1 339.6 9 13.5 0.20 1.5 1.70
199.
8 OK 0.6 OK GI 339.6 8
26
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
F_Dhigodevi_Dalli FP-6 MS 2.2 339.6 9 13.5 0.20 1.5 1.70
199.
8 OK 0.6 OK GI 339.6 8
F_Dhigodevi_Dalli FP-15 MS 1.2 339.6 -0.26 -0.4 -0.01 1.5 1.49
227.
3 OK 0.4 OK GI 339.6 8
F_Dhigodevi_Dalli FP-8 MS 2 339.6 0.47 0.7 0.01 1.5 1.51
224.
8 OK 0.4 OK GI 339.6 8
F_Dhigodevi_Dalli FP-18 MS 5.9 339.6 0.34 0.5 0.01 1.5 1.51
225.
3 OK 0.4 OK GI 339.6 8
F_Dhigodevi_Dalli FP-19 MS 4.5 339.6 0 0.0 0.00 1.5 1.50
226.
4 OK 0.4 OK GI 339.6 8
F_Dhigodevi_Dalli FP-9 MS 48.8 585 52.52 78.8 2.00 1.5 3.50
167.
0 OK 1.0 OK GI 585 12.5
F_Dhigodevi_Dalli FP-43 MS 30.6 309.7 73.37 110.1 1.48 1.5 2.98
103.
9 OK 4.1 OK GI 309.7 7.1
F_Dhigodevi_Dalli FP-39 MS 3.3 585 0 0.0 0.00 1.5 1.50
390.
0
Increase t
0.1 Increas
e T GI 585 12.5
F_Dhigodevi_Dalli FP-40 MS 5.1 585 -0.03 0.0 0.00 1.5 1.50
390.
3
Increase t
0.1 Increas
e T GI 585 12.5
F_Dhigodevi_Dalli FP-28 MS 3.6 309.7 43.89 65.8 0.89 1.5 2.39
129.
8 OK 2.1 OK GI 309.7 7.1
F_Dhigodevi_Dalli FP-29 MS 85.5 309.7 93.71 140.6 1.89 1.5 3.39 91.3 OK 6.1 OK GI 309.7 7.1
F_Dhigodevi_Dalli FP-26 MS 3.3 339.6 56.83 85.2 1.26 1.5 2.76
123.
1 OK 2.5 OK GI 339.6 8
F_Dhigodevi_Dalli FP-27 MS 622.5 339.6 93.71 140.6 2.08 1.5 3.58 95.0 OK 5.4 OK GI 339.6 8
F_Dhigodevi_Dalli FP-24 MS 3.9 260.4 49.49 74.2 0.84 1.5 2.34
111.
3 OK 3.4 OK GI 260.4 6.3
F_Dhigodevi_Dalli FP-25 MS 1.1 260.4 49.72 74.6 0.84 1.5 2.34
111.
1 OK 3.4 OK GI 260.4 6.3
G_Mashobra_Craignaino GP-5 MS 15.1 309.7 101.3
3 152.0 2.05 1.5 3.55 87.3 OK 7.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-6 MS 1.2 260.4 5 7.5 0.08 1.5 1.58
164.
3 OK 1.0 OK GI 260.4 6.3
27
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
G_Mashobra_Craignaino GP-7 MS 3.2 260.4 5 7.5 0.08 1.5 1.58
164.
3 OK 1.0 OK GI 260.4 6.3
G_Mashobra_Craignaino GP-1 MS 0.8 437 5 7.5 0.14 1.5 1.64
266.
1 OK 0.2
Increas
e T GI 437 10
G_Mashobra_Craignaino GP-2 MS 1.3 437 5 7.5 0.14 1.5 1.64
266.
1 OK 0.2
Increas
e T GI 437 10
G_Mashobra_Craignaino GP-3 MS 0.8 437 5 7.5 0.14 1.5 1.64
266.
1 OK 0.2
Increas
e T GI 437 10
G_Mashobra_Craignaino GP-4 MS 1.5 437 5 7.5 0.14 1.5 1.64
266.
1 OK 0.2
Increas
e T GI 437 10
G_Mashobra_Craignaino GP-17 MS 16.8 260.4 97.77
146.7 1.66 1.5 3.16 82.4 OK 8.3 OK GI 260.4 6.3
G_Mashobra_Craignaino GP-19 MS 1.3 260.4 97.77
146.7 1.66 1.5 3.16 82.4 OK 8.3 OK GI 260.4 6.3
G_Mashobra_Craignaino GP-8 MS 6.5 309.7 14.96 22.4 0.30 1.5 1.80
171.
9 OK 0.9 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-12 MS 2.4 309.7 14.96
22.4 0.30 1.5 1.80 171.
9 OK 0.9 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-18 MS 0.8 437 36.58
54.9 1.04 1.5 2.54 171.
9 OK 0.9 OK GI 437 10
G_Mashobra_Craignaino GP-13 MS 0.7 486 34.74
52.1 1.10 1.5 2.60 186.
9 OK 0.7 OK GI 486 11
G_Mashobra_Craignaino GP-20 MS 27 309.7
102.66
154.0 2.07 1.5 3.57 86.7 OK 7.1 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-21 MS 178.1 309.7 97.98
147.0 1.98 1.5 3.48 89.0 OK 6.6 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-16 MS 6.7 486 48.55
72.8 1.54 1.5 3.04 159.
9 OK 1.1 OK GI 486 11
G_Mashobra_Craignaino GP-11 MS 30.9 437 36.63
54.9 1.04 1.5 2.54 171.
8 OK 0.9 OK GI 437 10
G_Mashobra_Craignaino GP-14 MS 31.5 486 34.75
52.1 1.10 1.5 2.60 186.
8 OK 0.7 OK GI 486 11
28
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
G_Mashobra_Craignaino GP-15 MS 17.5 486 44.74
67.1 1.42 1.5 2.92 166.
6 OK 1.0 OK GI 486 11
G_Mashobra_Craignaino GP-9 MS 4.9 437 49.43 74.1 1.41 1.5 2.91
150.
3 OK 1.4 OK GI 437 10
G_Mashobra_Craignaino GP-10 MS 17.6 437 46.63
69.9 1.33 1.5 2.83 154.
5 OK 1.3 OK GI 437 10
G_Mashobra_Craignaino GP-57 MS 160.9 309.7 98.2
147.3 1.98 1.5 3.48 88.9 OK 6.6 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-58 MS 42.1 309.7
102.66
154.0 2.07 1.5 3.57 86.7 OK 7.1 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-50 MS 90.1 309.7 58.8
88.2 1.19 1.5 2.69 115.
2 OK 3.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-22 MS 101.9 309.7
101.22
151.8 2.04 1.5 3.54 87.4 OK 7.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-27 MS 68.9 309.7 130.9
196.4 2.64 1.5 4.14 74.7 OK 11.1 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-32 MS 30.3 309.7
120.51
180.8 2.43 1.5 3.93 78.7 OK 9.5 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-51 MS 40.7 309.7 68.66
103.0 1.39 1.5 2.89 107.
3 OK 3.8 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-52 MS 25.6 309.7 75.99
114.0 1.53 1.5 3.03 102.
1 OK 4.4 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-33 MS 362.6 309.7 110.5
165.8 2.23 1.5 3.73 83.0 OK 8.1 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-28 MS 120.3 309.7
140.77
211.2 2.84 1.5 4.34 71.3 OK 12.8 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-29 MS 8.2 309.7
140.77
211.2 2.84 1.5 4.34 71.3 OK 12.8 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-53 MS 64.9 309.7 85.93
128.9 1.74 1.5 3.24 95.7 OK 5.3 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-54 MS 226.2 309.7 98.31
147.5 1.99 1.5 3.49 88.9 OK 6.6 OK GI 309.7 7.1
29
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
G_Mashobra_Craignaino GP-30 MS 90.3 309.7
140.76
211.1 2.84 1.5 4.34 71.3 OK 12.8 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-31 MS 222.7 309.7 130.7
196.1 2.64 1.5 4.14 74.8 OK 11.1 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-34 MS 110.9 309.7
109.95
164.9 2.22 1.5 3.72 83.2 OK 8.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-45 MS 199.9 309.7 53.2
79.8 1.07 1.5 2.57 120.
3 OK 2.7 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-25 MS 50.4 309.7
111.09
166.6 2.24 1.5 3.74 82.7 OK 8.2 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-26 MS 93.1 309.7
120.98
181.5 2.44 1.5 3.94 78.5 OK 9.6 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-23 MS 20.7 309.7
101.22
151.8 2.04 1.5 3.54 87.4 OK 7.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-24 MS 50.2 309.7 101.2
151.8 2.04 1.5 3.54 87.4 OK 7.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-46 MS 106.6 309.7 59.04
88.6 1.19 1.5 2.69 115.
0 OK 3.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-35 MS 19.2 309.7
109.32
164.0 2.21 1.5 3.71 83.5 OK 8.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-36 MS 32.2 309.7
100.14
150.2 2.02 1.5 3.52 87.9 OK 6.8 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-42 MS 96 309.7 48.13
72.2 0.97 1.5 2.47 125.
3 OK 2.4 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-47 MS 79.8 309.7 59.04
88.6 1.19 1.5 2.69 115.
0 OK 3.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-48 MS 95.9 309.7 58.97
88.5 1.19 1.5 2.69 115.
1 OK 3.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-49 MS 82.6 309.7 58.88
88.3 1.19 1.5 2.69 115.
2 OK 3.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-40 MS 162.7 309.7 70.02
105.0 1.41 1.5 2.91 106.
3 OK 3.9 OK GI 309.7 7.1
30
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
G_Mashobra_Craignaino GP-41 MS 54.7 309.7 58.36
87.5 1.18 1.5 2.68 115.
6 OK 3.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-37 MS 24.8 309.7 90.29
135.4 1.82 1.5 3.32 93.2 OK 5.7 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-43 MS 2.9 309.7 39.79
59.7 0.80 1.5 2.30 134.
4 OK 1.9 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-44 MS 467.3 309.7 42.26
63.4 0.85 1.5 2.35 131.
6 OK 2.0 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-38 MS 60.9 309.7 80.06
120.1 1.62 1.5 3.12 99.4 OK 4.7 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-39 MS 6.3 309.7 70.95
106.4 1.43 1.5 2.93 105.
6 OK 3.9 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-55 MS 99.6 309.7 98.31
147.5 1.99 1.5 3.49 88.9 OK 6.6 OK GI 309.7 7.1
G_Mashobra_Craignaino GP-56 MS 24.5 309.7 98.22
147.3 1.98 1.5 3.48 88.9 OK 6.6 OK GI 309.7 7.1
H_Kusumpti HP-8 MS 25.4 206.5 33.32 50.0 0.45 1.5 1.95
106.
0 OK 3.9 OK GI 206.5 6.3
H_Kusumpti HP-9 MS 0.8 206.5 33.29 49.9 0.45 1.5 1.95
106.
0 OK 3.9 OK GI 206.5 6.3
H_Kusumpti HP-10 MS 1 206.5 10
15.0 0.13 1.5 1.63 126.
3 OK 2.3 OK GI 206.5 6.3
H_Kusumpti HP-11 MS 1 206.5 10
15.0 0.13 1.5 1.63 126.
3 OK 2.3 OK GI 206.5 6.3
H_Kusumpti HP-53 MS 47.9 206.5 8.37
12.6 0.11 1.5 1.61 128.
0 OK 2.2 OK GI 206.5 6.3
H_Kusumpti HP-54 MS 72.8 206.5 21.03
31.5 0.28 1.5 1.78 115.
8 OK 3.0 OK GI 206.5 6.3
H_Kusumpti HP-6 MS 0.2 206.5 0 0.0 0.00 1.5 1.50
137.
7 OK 1.8 OK GI 206.5 6.3
H_Kusumpti HP-7 MS 0.1 206.5 0 0.0 0.00 1.5 1.50
137.
7 OK 1.8 OK GI 206.5 6.3
31
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
H_Kusumpti HP-28(1) MS 0 206.5 0
0.0 0.00 1.5 1.50 137.
7 OK 1.8 OK GI 206.5 6.3
H_Kusumpti HP-28(2) MS 128.2 206.5 3.43
5.1 0.05 1.5 1.55 133.
6 OK 1.9 OK GI 206.5 6.3
I_Jakhu IP-3 MS 1.6 260.4 10.13 15.2 0.17 1.5 1.67
155.
7 OK 1.2 OK GI 260.4 6.3
I_Jakhu IP-4 MS 4.4 260.4 10.13 15.2 0.17 1.5 1.67
155.
7 OK 1.2 OK GI 260.4 6.3
I_Jakhu IP-1 MS 0.6 309.7 10.96 16.4 0.22 1.5 1.72
179.
9 OK 0.8 OK GI 309.7 7.1
I_Jakhu IP-2 MS 0.4 309.7 10.96 16.4 0.22 1.5 1.72
179.
9 OK 0.8 OK GI 309.7 7.1
I_Jakhu IP-5 MS 2.4 437 318.2
2 477.3 9.07 1.5 10.57 41.4 OK 65.6 OK GI 437 10
I_Jakhu IP-10 MS 409.2 437 318.2
2 477.3 9.07 1.5 10.57 41.4 OK 65.6 OK GI 437 10
I_Jakhu IP-11 MS 264 437 128.2
9 192.4 3.66 1.5 5.16 84.8 OK 7.6 OK GI 437 10
I_Jakhu IP-14 MS 197.8 437 218.1
9 327.3 6.22 1.5 7.72 56.6 OK 25.6 OK GI 437 10
I_Jakhu IP-15 MS 222.5 437 283.1
4 424.7 8.07 1.5 9.57 45.7 OK 48.7 OK GI 437 10
I_Jakhu IP-6 MS 4.6 437 -1.12 -1.7 -0.03 1.5 1.47
297.
7 OK 0.2
Increas
e T GI 437 10
I_Jakhu IP-7 MS 1.8 437 0 0.0 0.00 1.5 1.50
291.
3 OK 0.2
Increas
e T GI 437 10
I_Jakhu IP-8 MS 8 309.7 136.1
5 204.2 2.75 1.5 4.25 72.9 OK 12.0 OK GI 309.7 7.1
I_Jakhu IP-9 MS 0.5 309.7 136.7
3 205.1 2.76 1.5 4.26 72.7 OK 12.1 OK GI 309.7 7.1
I_Jakhu IP-12 MS 64.9 260.4 174.6
4 262.0 2.97 1.5 4.47 58.3 OK 23.4 OK GI 260.4 6.3
32
Results from WaterGEMS Minimum Thickness
Check for
minimum wall
thickness
Vacuum Pressure Provide: (a) GI Heavy Duty (As per IS 1239, Part 1); (b)MS (As
per IS 3589:2001)
P_Area Label Materia
l Length
(m) Diameter (mm)
P_Max (m H2O)
1.5*Pmax
t=PD/2s
Allowance for
corrosion (mm)
Thickness considerin
g corrosion
(mm)
D/t
If D/t < 300
thickness is OK
Collapsing
Pressure (Pv)
(kg/cm2)=
If Pv > 0.34
buckling due
to vacuum will
not occur
Material
Diameter (mm)
Thickness (mm)
I_Jakhu IP-13 MS 1.4 260.4 175.6
6 263.5 2.98 1.5 4.48 58.1 OK 23.7 OK GI 260.4 6.3
***
33