Water Gas and Air Pipelines,Water Pipelines,Gas Pipelines,Air Pipelines
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Water, Gas and Air Pipelines
We design and supply superior quality steel pipes for various water, air and gas transport applications. Made of high quality material, these are high in performance and have found various uses in different industrial applications. These pipelines are meant for the movement of water, oil & natural gas at a very high pressure. Buried high pressure oil and gas pipelines are tested for strength by pressurizing them to at least 125% of their maximum operating pressure (MAOP).

Since many long distance transmission pipelines are designed to have a steel hoop stress of 80% of specified minimum yield (SMYS) at MAOP, this means that the steel is stressed to SMYS and above during the testing. Leak testing is performed by balancing changes in the measured pressure in the test section against the theoretical pressure changes calculated from changes in the measured temperature of the test section.

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Water Gas and Air Pipelines,Water Pipelines,Gas Pipelines,Air Pipelines

For Water, Gas and Air Pipeline conforming to IS: 1239

N.B.
&Series
Outside Diameter Wall thickness Nominal Mass of Galvanized Steel Tubes Socket
            Plain
end
Screwed
& Socketed
     
mm inch Min. mm Max. mm mm SWG Kg
/mtrs.
mtrs
/tonne
Kg/ Mtrs Mtrs
/tonne
No.of Pipes per bundle Min. Outer dia. mm Min. Length mm
15 L
M
H
1/2
1/2
1/2
21.0
21.0
21.0
21.4
21.8
21.8
2.00
2.60
3.20
14
12
10
0.947
1.210
1.440
1056
826
694
0.956
1.220
1.450
1046
820
690
165
132
110
27.0 37.0
20 L
M
H
3/4
3/4
3 / 4
26.4
26.5
26.5
26.9
27.3
27.3
2.30
2.60
3.20
13
12
10
1.380
1.560
1.870
725
641
535
1.390
1.570
1.880
719
637
532
112
98
84
32.5 39.0
25 L
M
H
1
1
1
33.2
33.3
33.3
33.8
34.2
34.2
2.60
3.20
4.00
12
10
8
1.980
2.410
2.930
505
415 341
2.000
2.430
2.950
500
412 339
80
65
55
39.5 46.0
32 L
M
H
1
1
1
41.9
42.0
42.0
42.5
42.9
42.9
2.60
3.20
4.00
12
10
8
2.540
3.100
3.790
394
323 264
2.570
3.130
3.820
389
319
262
60
51
42
49.0 51.0
40 L
M
H
1
1
1
47.8
47.9
47.9
48.4
48.8
48.8
2.90
3.20
4.00
11
10
8
3.230
3.560
4.370
310
281
229
3.270
3.600
4.410
306
278
227
48
45
36
56.0 51.0
50 L
M
H
2
2
2
59.6
39.7
59.7
60.2
60.8
60.8
2.90
3.60
4.50
11
9
7
4.080
5.030
6.190
245
199
162
4.150
5.100
6.260
241
196
160
39
30
27
68.0 60.0
65L
M
H
2
2
2 1/2
75.2
75.3
75.3
76.0
76.6
76.6
3.20
3.60
4.50
10
9
7
5.710
6.410
7.930
175
156
126
5.830
6.540
8.050
172
153
124
27
24
20
84.0 69.0
80 L
M
H
3
3
3
87.9
88.0
88.0
88.7
89.5
89.5
3.20
4.00
4.80
10
8
6
6.720
8.360
9.900
149
120
101
6.890
8.530
10.400
145
117
96
23
19
16
98.0 75.0
100 L
M
H
4
4
4
113.0
113.1
113.0
113.9
115.0
115.0
3.60
4.50
5.40
9
7
5
9.750
12.200
14.500
103
82
69
10.000
12.500
14.800
100
80
68
16
13
11
124.0 87.0
125 M
H
5
5
138.5
138.5
140.8
140.8
4.80 5.40 6
5
15.900 17.900 63
56
16.400
18.400
61 54 10
9
151.0 96.0
150M
H
6
6
163.9
163.9
166.5
166.5
4.80
5.40
6
5
18.900
21.300
53
47
19,500
21,900
51
46
8
7
178.0 96.0
L=Light,   M = Medium,   H= Heavy      

Tolerances
a) Outside Diameter Maximum Deviation Upto & including 21.3mm #9; Above 21.3mm Light Tubes+ Not limited -8%
  Medium and+ Not limited Heavy Tubes -10%
Weight Single tube +10% (Light series)
  Single tube (Medium& Heavy series) 10%
  For Quality per Load of 10 tonnes minimum (Light series) 5%
  For Quantity per Load of 10 tonnes minimum (Medium & heavy series) 7.5%
Length 4 to 7 meters unless otherwise specified

For water steel pipes and sewage conforming to IS: 3589/2001
Outside Diameter OD Nominal Bore Wall Thickness Calculated Weight (Plain end)
mm mm mm Kg./ mtr. Mtrs./tonne approx.
168.3 150 2.6 10.6 94
    3.2 12.0 83
    4.0 16.2 62
    4.5 18.2 55
219.1 200 2.6 13.9 72
    3.6 19.1 52
    4.5 23.8 42
    6.3 33.1 30
273.0 250 3.6 23.9 42
    4.0 26.5 38
    5.0 33.0 30
    6.3 41.1 24
323.9 300 4.0 31.8 31
    4.5 35.4 28
    5.6 44.0 23
    7.1 55.5 18
355.6 350 4.0 34.7 29
    5.0 43.2 23
    5.6 48.3 21
    8.0 68.6 15

Tolerances
Outer Dia 0.75%
Thickness 10%
Length 4 to 7 meter
Notes
Thickness as stated above are commonly used. However, pipes of other thickness can also be manufactured and supplied to meet customers' requirement. Pipes can be supplied in grades FE-330, FE-410 and FE-450.


 
         
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