01-5800-7N0012/-
05/2019-EHT-432712
Notice
Technical data subject to change without notice.
No claims for damage arising from alternations, errors or misprints shall be allowed.
Page 7 / 46
Next, obtain the basic heat loss in W/m using the following table
3
:
Table A: Basic heat loss in W/m
Pipe ø in
DN (inch)
DN8
(1/4")
DN10
(3/8")
DN15
(1/2")
DN20
(3/4")
DN25
(1")
DN32
(1 1/4")
DN40
(1 1/2")
DN50
(2")
DN65
(2 1/2")
DN80
(3")
DN100
(4")
DN125
(5")
DN150
(6")
DN200
(8")
DN250
(10")
DN300
(12")
In
su
lati
on
th
ickn
ess
in
mm
15
25
4.3
4.9
5.7
6.7
7.8
9.3
10.3
12.4
14.9
17.2
21.4
25.7
30.4
38.9
47.9
56.4
35
6.2
7.2
8.2
9.7
11.4
13.5
15.0
17.9
21.6
24.9
31.0
37.2
44.1
56.4
45
8.2
9.5
10.9
12.8
15.1
18.0
19.9
23.8
28.7
33.1
41.2
49.4
58.6
75
15.0
17.4
20.0
23.5
27.6
32.8
36.4
43.5
52.4
100
21.5
24.9
28.6
33.6
39.5
47.0
52.1
125
28.7
33.3
38.2
44.9
52.8
20
25
3.6
4.2
4.7
5.5
6.4
7.5
8.3
9.8
11.7
13.4
16.6
19.8
23.4
29.8
36.5
42.9
35
5.3
6.0
6.8
7.9
9.2
10.9
12.0
14.2
17.0
19.5
24.1
28.7
33.9
43.1
52.9
45
7.0
8.0
9.1
10.5
12.3
14.5
15.9
18.9
22.6
25.9
32.0
38.2
45.1
57.3
75
12.8
14.6
16.6
19.3
22.5
26.4
29.1
34.5
41.2
47.3
58.6
100
18.3
20.9
23.8
27.6
32.2
37.9
41.7
49.4
59.0
125
24.4
28.0
31.8
36.9
42.9
50.6
55.7
25
25
3.2
3.7
4.1
4.8
5.5
6.4
7.0
8.3
9.8
11.2
13.8
16.3
19.2
24.3
29.7
34.8
35
4.7
5.3
6.0
6.9
8.0
9.3
10.2
12.0
14.2
16.2
19.9
23.6
27.8
35.2
43.0
50.4
45
6.2
7.1
8.0
9.1
10.6
12.3
13.5
15.9
18.9
21.5
26.5
31.4
36.9
46.8
57.1
75
11.3
12.9
14.5
16.7
19.3
22.6
24.7
29.1
34.5
39.4
48.4
57.4
100
16.2
18.5
20.8
24.0
27.7
32.3
35.4
41.7
49.4
56.4
125
21.7
24.7
27.8
32.0
36.9
43.1
47.3
55.7
30
25
2.9
3.3
3.7
4.3
4.9
5.7
6.2
7.2
8.5
9.7
11.8
14.0
16.4
20.6
25.1
29.4
35
4.3
4.8
5.4
6.2
7.1
8.2
9.0
10.5
12.3
14.0
17.1
20.2
23.7
29.9
36.4
42.6
45
5.7
6.4
7.2
8.2
9.4
10.9
11.9
13.9
16.4
18.6
22.8
26.9
31.5
39.7
48.4
56.5
75
10.4
11.7
13.1
15.0
17.2
19.9
21.8
25.4
30.0
34.1
41.6
49.2
57.6
100
14.8
16.8
18.8
21.5
24.6
28.5
31.2
36.4
42.9
48.8
59.6
125
19.8
22.4
25.1
28.7
32.9
38.1
41.6
48.7
57.3
40
25
2.6
2.9
3.2
3.6
4.1
4.7
5.1
5.9
6.9
7.8
9.4
11.0
12.8
16.0
19.4
22.6
35
3.7
4.2
4.6
5.2
5.9
6.8
7.4
8.6
10.0
11.3
13.6
16.0
18.6
23.2
28.1
32.8
45
5.0
5.5
6.2
7.0
7.9
9.1
9.8
11.4
13.3
15.0
18.1
21.2
24.7
30.9
37.4
43.5
75
9.1
10.1
11.3
12.7
14.5
16.6
18.0
20.8
24.3
27.4
33.1
38.8
45.2
56.5
100
13.0
14.5
16.1
18.2
20.7
23.7
25.8
29.8
34.8
39.2
47.4
55.6
125
17.4
19.4
21.6
24.4
27.6
31.7
34.4
39.8
46.4
52.4
50
25
2.3
2.6
2.9
3.2
3.6
4.1
4.5
5.1
5.9
6.6
7.9
9.2
10.7
13.3
16.0
18.6
35
3.4
3.8
4.2
4.7
5.2
6.0
6.4
7.4
8.6
9.6
11.5
13.4
15.5
19.2
23.2
26.9
45
4.5
5.0
5.5
6.2
7.0
7.9
8.6
9.8
11.4
12.8
15.3
17.8
20.6
25.6
30.8
35.7
75
8.3
9.2
10.1
11.3
12.8
14.5
15.7
18.0
20.8
23.3
28.0
32.5
37.7
46.7
56.3
100
11.8
13.1
14.5
16.2
18.3
20.8
22.4
25.7
29.8
33.4
40.0
46.6
53.9
125
15.8
17.5
19.3
21.7
24.4
27.7
30.0
34.4
39.8
44.6
53.5
100
25
1.8
2.0
2.1
2.3
2.6
2.9
3.1
3.4
3.9
4.2
4.9
5.6
6.4
7.7
9.1
10.38
35
2.6
2.9
3.1
3.4
3.7
4.1
4.4
4.9
5.6
6.1
7.2
8.1
9.2
11.2
13.2
15.0
45
3.5
3.8
4.1
4.5
5.0
5.5
5.9
6.6
7.4
8.2
9.5
10.8
12.3
14.8
17.5
20.0
75
6.4
6.9
7.5
8.2
9.1
10.1
10.7
12.0
13.6
14.9
17.4
19.8
22.4
27.1
32.0
36.5
100
9.1
9.9
10.7
11.8
13.0
14.4
15.4
17.2
19.4
21.3
24.9
28.3
32.1
38.8
45.8
52.3
125
12.2
13.3
14.4
15.8
17.4
19.3
20.5
23.0
25.9
28.5
33.2
37.8
42.9
51.8
61.1
69.9
3
Heat loss calculations are based on IEC/IEEE 60079-30-1:2015 Annex C and IEC/IEEE 60079-30-2:2015 Annex E. The following assumptions have been made:
▪
Medium not in motion
▪
Single layer insulation
▪
No gap between pipe and insulation layer
▪
No gap between insulation layer and weather shielding
▪
Ambient temperature: -20 °C
▪
Outdoor installation, wind speed: 20 m/s
▪
Application of a safety factor of +10 %
For other values contact your local BARTEC distributor.
ΔT in °C
