PREMANT district heating pipe
Ball valve with 1 vents
PRE 6.333
a
SW
Da
L
Main pipe
Nominal
width
DN
25
32
40
50
65
80
100
125
150
200
250
300
150
Insulation
thickness 1
D
mm
90
110
110
125
140
160
200
225
250
315
400
450
Wrench size
Draining/venting valve
Nominal
width
DN
Da
a
h
mm
mm
mm
Steel
pipe
d
mm
33.7
42.4
48.3
60.3
76.1
88.9
114.3
139.7
168.3
219.1
273.0
323.9
Insulation
thickness 2
D
mm
110
125
125
140
160
180
225
250
280
355
450
500
Insulation
thickness 3
D
mm
125
140
140
160
180
200
250
280
315
400
500
560
Nominal
length
L
WS
h
m
m
m
m
mm
1500
19
540
1500
19
550
1500
19
560
1500
19
560
1500
19
570
1500
19
580
1500
27
580
1500
27
600
1500
27
620
1500
50
580
1750
50
610
1810
50
660
25
25
25
25
32
32
32
40
40
40
50
50
90
320
350
90
320
350
90
320
360
90
320
360
110
320
370
110
320
380
110
320
390
110
320
500
110
320
510
110
320
540
125
400
580
125
500
610
The dimensioning of the venting fitting can be freely selected.
Instructions on installation, operation and maintenance as per sheet PRE 6.325
For accessories, see sheet PRE 6.335
23.5.2023 BGP
Subject to technical changes
D
d
h
