Pipework
Dimensions
Pipe wall thicknesses for welded flanges (EN 1092-1:2013-04)
|
valve Ø |
PN 2.5 Sp |
PN 6 Sp |
PN 10 Sp |
PN 16 Sp |
PN 25 Sp |
PN 40 Sp |
PN 63 Sp |
PN 100 Sp |
|
17.2 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
21.3 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
26.9 |
2.3 |
2.3 |
2.3 |
2.3 |
2.3 |
2.3 |
2.6 |
2.6 |
|
33.7 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
|
42.4 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.9 |
2.9 |
|
48.3 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.6 |
2.9 |
2.9 |
|
60.3 |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
3.2 |
|
76.1 |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
3.2 |
3.6 |
|
88.9 |
3.2 |
3.2 |
3.2 |
3.2 |
3.2 |
3.2 |
3.6 |
4.0 |
|
114.3 |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
4.0 |
5.0 |
|
139.7 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.5 |
6.3 |
|
168.3 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
5.6 |
7.1 |
|
219.1 |
6.3 |
6.3 |
6.3 |
6.3 |
6.3 |
6.3 |
7.1 |
10.0 |
|
273.0 |
6.3 |
6.3 |
6.3 |
6.3 |
7.1 |
7.1 |
8.8 |
12.5 |
|
323.9 |
7.1 |
7.1 |
7.1 |
7.1 |
8.0 |
8.0 |
11.0 |
14.2 |
|
355.6 |
7.1 |
7.1 |
7.1 |
8.0 |
8.0 |
8.8 |
12.5 |
16.0 |
|
406.4 |
7.1 |
7.1 |
7.1 |
8.0 |
8.8 |
11.0 |
14.2 |
|
|
457 |
7.1 |
7.1 |
7.1 |
8.0 |
8.8 |
12.5 |
||
|
508 |
7.1 |
7.1 |
7.1 |
8.0 |
10.0 |
14.2 |
||
|
610 |
7.1 |
7.1 |
7.1 |
8.8 |
11.0 |
16.0 |
||
|
711 |
7.1 |
7.1 |
8.0 |
8.8 |
12.5 |
|||
|
813 |
7.1 |
7.1 |
8.0 |
10.0 |
14.2 |
|||
|
914 |
7.1 |
7.1 |
10.0 |
10.0 |
16.0 |
|||
|
1,016 |
7.1 |
7.1 |
10.0 |
10.0 |
17.5 |
|||
|
1,219 |
7.1 |
8.0 |
11.0 |
12.5 |
||||
|
1,422 |
7.1 |
8.0 |
12.5 |
14.2 |
||||
|
1,626 |
8.0 |
9.0 |
14.2 |
16.0 |
Excerpt from Table A.1 in EN 1092-1:2013-0 — wall thickness for type 11
|
A Ø |
Outer diameter |
|
Sp |
Wall thickness |
|
PN |
Nominal pressure stage |
Pressure and temperature ratings1)
The pressure and temperature ratings of flanges is based on the material groups.
The following materials and groups are customary in the area of steam boilers:
|
Material group |
Description |
Material number |
|
3E0 |
Unalloyed steels with guaranteed strength characteristics at higher temperatures |
1.0352 P245 GH |
|
3E1 |
Unalloyed steels with defined characteristics up to 400°C, upper yield point > 265N/mm² |
1.0426 P280 GH |
|
4E0 |
Low alloy steels with 0.3% molybdenum |
1.5415 16Mo3 |
|
12E0 |
Standard carbon content, stabilised with Ti or Nb |
1.4541 X6CrNiTi18-10 |
|
15E0 |
Standard carbon content, alloyed with molybdenum, stabilised with Ti or Nb |
1.4571 X6CrNiMoTi17-12-2 |
Pressure-temperature assignment
1) Source: EN 1092-1:2013-04 Table 9, G.2.2, G.3.2, Table D.1
|
Notices regarding the following tables and diagrams:
|
PN10
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
460 |
470 |
480 |
490 |
500 |
510 |
520 |
530 |
|
|
PS [bar] |
3E0 |
10.0 |
9.2 |
8.8 |
8.3 |
7.6 |
6.9 |
6.4 |
5.9 |
3.2 |
– |
– |
– |
– |
– |
– |
– |
– |
|
3E1 |
10.0 |
10.0 |
10.0 |
10.0 |
9.7 |
8.8 |
8.0 |
7.3 |
4.0 |
– |
– |
– |
– |
– |
– |
– |
– |
|
|
4E0 |
10.0 |
10.0 |
10.0 |
10.0 |
9.7 |
8.5 |
8.0 |
7.4 |
6.9 |
6.4 |
5.9 |
5.4 |
4.9 |
4.4 |
3.5 |
2.8 |
2.2 |
Excerpt from table G.2.1–3 – PN 10 for ferritic materials
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
560 |
570 |
580 |
590 |
600 |
|
|
PS [bar] |
12E0 |
10.0 |
9.9 |
9.3 |
8.8 |
8.4 |
7.9 |
7.6 |
7.4 |
7.2 |
7.0 |
6.7 |
6.1 |
5.6 |
5.0 |
4.5 |
4.0 |
|
15E0 |
10.0 |
10.0 |
9.8 |
9.3 |
8.8 |
8.3 |
8.0 |
7.8 |
7.6 |
7.5 |
7.4 |
7.4 |
7.3 |
6.7 |
6.0 |
5.5 |
Excerpt from table G.4.1–3 – PN 10 for austenitic materials
PN16
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
460 |
470 |
480 |
490 |
500 |
510 |
520 |
530 |
|
|
PS [bar] |
3E0 |
16.0 |
14.8 |
14.0 |
13.3 |
12.1 |
11.0 |
10.2 |
9.5 |
5.2 |
– |
– |
– |
– |
– |
– |
– |
– |
|
3E1 |
16.0 |
16.0 |
16.0 |
16.0 |
15.6 |
14.0 |
12.9 |
11.8 |
6.4 |
– |
– |
– |
– |
– |
– |
– |
– |
|
|
4E0 |
16.0 |
16.0 |
16.0 |
16.0 |
15.6 |
13.7 |
12.9 |
11.9 |
11.0 |
10.2 |
9.4 |
8.6 |
7.8 |
7.0 |
5.6 |
4.4 |
3.5 |
Excerpt from table G.2.1–4 – PN 16 for ferritic materials
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
560 |
570 |
580 |
590 |
600 |
|
|
PS [bar] |
12E0 |
16.0 |
15.8 |
14.9 |
14.1 |
13.4 |
12.7 |
12.2 |
11.8 |
11.6 |
11.3 |
10.8 |
9.8 |
8.9 |
8.1 |
7.3 |
6.5 |
|
15E0 |
16.0 |
16.0 |
15.6 |
14.9 |
14.1 |
13.3 |
12.8 |
12.4 |
12.2 |
12.0 |
11.9 |
11.8 |
11.7 |
10.7 |
9.7 |
8.8 |
Excerpt from table G.4.1–4 – PN 16 for austenitic materials
PN 25
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
460 |
470 |
480 |
490 |
500 |
510 |
520 |
530 |
|
|
PS [bar] |
3E0 |
25.0 |
23.2 |
22.0 |
20.8 |
19.0 |
17.2 |
16.0 |
14.8 |
8.2 |
– |
– |
– |
– |
– |
– |
– |
– |
|
3E1 |
25.0 |
25.0 |
25.0 |
25.0 |
24.4 |
22.0 |
20.2 |
18.4 |
10.1 |
– |
– |
– |
– |
– |
– |
– |
– |
|
|
4E0 |
25.0 |
25.0 |
25.0 |
25.0 |
24.4 |
21.4 |
20.2 |
18.6 |
17.2 |
16.0 |
14.7 |
13.5 |
12.3 |
11.0 |
8.8 |
7.0 |
5.5 |
Excerpt from table G.2.1–5 – PN 25 for ferritic materials
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
560 |
570 |
580 |
590 |
600 |
|
|
PS [bar] |
12E0 |
25.0 |
24.7 |
23.3 |
22.1 |
21.0 |
19.8 |
19.1 |
18.5 |
18.1 |
17.7 |
16.9 |
15.3 |
14.0 |
12.7 |
11.4 |
10.2 |
|
15E0 |
25.0 |
25.0 |
24.5 |
23.3 |
22.1 |
20.8 |
20.1 |
19.5 |
19.1 |
18.8 |
18.6 |
18.5 |
18.3 |
16.7 |
15.2 |
13.8 |
Excerpt from table G.4.1–5 – PN 25 for austenitic materials
PN 40
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
460 |
470 |
480 |
490 |
500 |
510 |
520 |
530 |
|
|
PS [bar] |
3E0 |
40.0 |
37.1 |
35.2 |
33.3 |
30.4 |
27.6 |
25.7 |
23.8 |
13.1 |
– |
– |
– |
– |
– |
– |
– |
– |
|
3E1 |
40.0 |
40.0 |
40.0 |
40.0 |
39.0 |
35.2 |
32.3 |
29.5 |
16.1 |
– |
– |
– |
– |
– |
– |
– |
– |
|
|
4E0 |
40.0 |
40.0 |
40.0 |
40.0 |
39.0 |
34.2 |
32.3 |
29.9 |
27.6 |
25.6 |
23.6 |
21.6 |
19.7 |
17.7 |
14.0 |
11.2 |
8.9 |
Excerpt from table G.2.1–6 – PN 40 for ferritic materials
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
560 |
570 |
580 |
590 |
600 |
|
|
PS [bar] |
12E0 |
40.0 |
39.6 |
37.3 |
35.4 |
33.7 |
31.8 |
30.6 |
29.7 |
29.0 |
28.3 |
27.0 |
24.5 |
22.4 |
20.3 |
18.2 |
16.3 |
|
15E0 |
40.0 |
40.0 |
39.2 |
37.3 |
35.4 |
33.3 |
32.1 |
31.2 |
30.6 |
30.0 |
29.9 |
29.6 |
29.3 |
26.8 |
24.3 |
22.0 |
Excerpt from table G.4.1–6 – PN 40 for austenitic materials
PN 63
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
460 |
470 |
480 |
490 |
500 |
510 |
520 |
530 |
|
|
PS [bar] |
3E0 |
63.0 |
58.5 |
55.5 |
52.5 |
48.0 |
43.5 |
40.5 |
37.5 |
20.7 |
– |
– |
– |
– |
– |
– |
– |
– |
|
3E1 |
63.0 |
63.0 |
63.0 |
63.0 |
61.5 |
55.5 |
51.0 |
46.5 |
25.5 |
– |
– |
– |
– |
– |
– |
– |
– |
|
|
4E0 |
63.0 |
63.0 |
63.0 |
63.0 |
61.5 |
54.0 |
51.0 |
47.1 |
43.5 |
40.3 |
37.2 |
34.1 |
31.0 |
27.9 |
22.2 |
17.7 |
14.1 |
Excerpt from table G.2.1–7 – PN 63 for ferritic materials
|
TS [°C] |
RT |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
560 |
570 |
580 |
590 |
600 |
|
|
PS [bar] |
12E0 |
63.0 |
62.4 |
58.8 |
55.8 |
53.1 |
50.1 |
48.3 |
46.8 |
45.7 |
44.7 |
42.6 |
38.7 |
35.4 |
32.1 |
28.8 |
25.8 |
|
15E0 |
63.0 |
63.0 |
61.8 |
58.8 |
55.8 |
52.5 |
50.7 |
49.2 |
48.3 |
47.4 |
47.1 |
46.6 |
46.2 |
42.3 |
38.4 |
34.8 |
Excerpt from table G.4.1–7 – PN 63 for austenitic materials
Flow speed
|
Medium |
Area of application |
Recommended speed |
|
Steam |
0 –1 bar |
20 – 25m/s |
|
1 – 40 bar |
30 – 40m/s |
|
|
Water |
Suction line |
0.4 (0.25 – 0.6) m/s |
|
Pressure line |
2 (1.5 – 3) m/s |
|
|
Condensate |
Steam fraction |
15 m/s |
|
Water fraction |
2 m/s |
|
|
Flue gas |
16.5 m/s |
|
|
Oil |
Light fuel oil intake side |
0.5 m/s |
|
Light oil discharge side |
1 m/s |
|
|
Heavy fuel oil intake side |
0.3 m/s |
|
|
Heavy fuel oil discharge side |
0.5 m/s |
|
|
Natural gas |
No specifications |
Standard design speeds (recommended speeds) for pipework sizing
Pressure loss – guide values for the pressure loss coefficient ζ
Shut-off valve, servovalve, butterfly valve
|
DN |
Kvs value |
Pressure loss coefficient ζ 1) |
||||
|
Shut-off valve |
Servovalve |
Butterfly valve |
Shut-off valve |
Servovalve |
Butterfly valve |
|
|
15 |
5.3 |
4 |
– |
2.9 |
5.1 |
0.9 |
|
20 |
7.2 |
6.3 |
– |
4.9 |
6.4 |
2.4 |
|
25 |
12 |
10 |
26 |
4.3 |
6.2 |
1.7 |
|
32 |
16 |
16 |
26.5 |
6.5 |
6.5 |
0.7 |
|
40 |
28.5 |
25 |
49.6 |
5 |
6.5 |
0.4 |
|
50 |
43 |
40 |
116 |
5.4 |
6.2 |
0.5 |
|
65 |
75 |
63 |
259 |
5.1 |
7.2 |
0.3 |
|
80 |
105 |
100 |
377 |
5.9 |
6.5 |
0.4 |
|
100 |
170 |
160 |
763 |
5.5 |
6.2 |
0.3 |
|
125 |
270 |
250 |
1,030 |
5.3 |
6.2 |
0.2 |
|
150 |
405 |
400 |
1,790 |
4.9 |
5.1 |
0.2 |
|
200 |
675 |
– |
3,460 |
5.6 |
– |
0.2 |
|
250 |
1,090 |
– |
5,070 |
5.2 |
– |
0.2 |
|
300 |
1,460 |
– |
7,430 |
6.1 |
– |
0.2 |
|
350 |
2,010 |
– |
10,320 |
5.9 |
– |
0.3 |
|
400 |
2,640 |
– |
13,290 |
5.9 |
– |
0.2 |
Shut-off valve, servovalve, butterfly valve
1) The pressure loss coefficient ζ is relative to the nominal diameter DN.
Intermediate flange-type non-return valve, non-return valve, dirt trap
|
DN |
Kvs value |
Pressure loss coefficient ζ 1) |
||||
|
ZIntermediate flange-type |
Non-return valve |
Dirt trap |
Intermediate flange-type |
Non-return valve |
Dirt trap |
|
|
15 |
4.4 |
5.7 |
6.9 |
4.2 |
2.5 |
1.7 |
|
20 |
7.1 |
7.8 |
10.8 |
5.1 |
4.2 |
2.2 |
|
25 |
12 |
11.8 |
17.8 |
4.3 |
4.5 |
2.0 |
|
32 |
19.5 |
17.9 |
26.1 |
4.4 |
5.2 |
2.5 |
|
40 |
25 |
27.5 |
36.7 |
6.5 |
5.4 |
3.0 |
|
50 |
46 |
48 |
61 |
4.7 |
4.3 |
2.7 |
|
65 |
69 |
77.6 |
98.6 |
6.0 |
4.7 |
2.9 |
|
80 |
87 |
109 |
146 |
8.7 |
5.5 |
3.1 |
|
100 |
122 |
168 |
234 |
10.7 |
5.7 |
2.9 |
|
125 |
– |
251 |
376 |
– |
6.2 |
2.8 |
|
150 |
– |
389 |
394 |
– |
5.3 |
5.2 |
|
200 |
– |
664 |
652 |
– |
5.8 |
6.0 |
|
250 |
– |
1,017 |
1,225 |
– |
6.0 |
4.2 |
|
300 |
– |
1,446 |
1,873 |
– |
6.2 |
3.7 |
|
350 |
– |
2,042 |
– |
– |
5.8 |
– |
|
400 |
– |
2,725 |
– |
– |
5.5 |
– |
|
500 |
– |
4,167 |
– |
– |
5.8 |
– |
Intermediate flange-type non-return valve, non-return valve, dirt trap
1) The pressure loss coefficient ζ is relative to the nominal diameter DN.Pressure loss of water vapour and other gases
|
For calculation of pressure loss up to consumer ζ =
|
|
ρ |
Density of flowing medium in kg/m³ |
|
u |
Average speed at pipe inlet |
|
T1 |
Temperature of the medium at the pipe inlet |
|
T2 |
Temperature of the medium at the pipe inlet |
The deviation compared to adiabatic flow can normally be disregarded.
Pressure loss of liquids
Conversion of Kv value, pressure loss coefficient ζ and flow coefficient Cv
