The standards differentiate between pipe series 1, 2 and 3. They recom-
mend using installation pipe series 1 as pipe series 2 and 3 are either
not or not always available in practice. Pipe series 1 includes seamless
pipes and pipes welded along the longitudinal seam, see
Ä
„Regula-
tions from section: Pipes“ on page 6.
Boiler pipe quality – pipe series 1
Thread
size
[Inch]
Nominal
width
[DN]
Nominal
external
diameter
[mm]
Min.
external
diameter
incl. coating
[mm]
Max.
external
diameter
incl. coating
[mm]
Possible
pipe wall
thickness
for seam-
less pipes
1)
[mm]
Possible pipe wall thick-
ness for pipes welded
along the longitudinal
seam
1)
[mm]
⅜
10
17.2
16.7
17.7
1.8–4.5
1.4–4.0
½
15
21.3
20.8
21.8
2.0–5.0
1.4–4.5
¾
20
26.9
26.4
27.4
2.0–8.0
1.4–5.0
1
25
33.7
33.2
34.2
2.3–8.8
1.4–8.0
1
¼
32
42.4
41.9
42.9
2.6–10.0
1.4–8.8
1
½
40
48.3
47.8
48.8
2.6–12.5
1.4–8.8
2
50
60.3
59.7
60.9
2.9–16.0
1.4–10.0
1)
see
Ä
„Regulations from section: Pipes“ on page 6
Only pipe clamps with chloride-free sound insulating inlays should be
used to secure the pipes.
Observe the general rules of fixing technology:
n
Do not use fixed pipelines as a support for other pipelines and com-
ponents.
n
Do not use pipe hooks.
n
Observe the expansion direction: Plan fixed and gliding points.
Interval between the pipe clamps
D [mm]
Nominal width
[inch]
Fixing interval
between
the pipe clamps
[m]
Fixing interval
between
the pipe clamps
[m]
17.2
⅜
2.25
—
21.3
½
2.75
—
1)
see
Ä
„Regulations from section: Pipes“ on page 6
Pipe overview – boiler pipe quality
Laying and fixing pipes
Product information
Megapress
11 from 32
Содержание Megapress
Страница 1: ...Year built from 10 2014 en_INT Megapress Instructions for Use ...
Страница 2: ...Megapress 2 from 32 ...
