PREMANT district heating pipe
Ball valve with 2 vents
PRE 6.332
Da
≥ 200
a
a
27/32
Da
L
h = high of vent
Draining/venting valve
Nominal
width
DN
Da**
a
h
mm
mm
mm
Main pipe
Nominal
width
DN
25
32
40
50
65
80
100
125
150
200
250
300
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
Insulation
Insulation
Nominal
Wrench size
h
mm
540
550
560
560
570
580
580
600
620
580
610
660
150*
thickness 1
D
mm
90
110
110
125
140
160
200
225
250
315
400
450
thickness 2
D
mm
110
125
125
140
160
180
225
250
280
355
450
500
thickness 3
D
mm
125
140
140
160
180
200
250
280
315
400
500
560
length
L*
mm
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
2000
2000
25
25
25
25
32
32
32
40
40
40
50
50
90
320
480
90
320
480
90
320
480
90
320
500
110
320
550
110
320
580
110
320
580
110
320
580
110
320
580
110
320
620
125
400
650
125
500
750
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
* depending on the make of the ball valve
** depending on the make of the vent tap
23.5.2023 BGP
Subject to technical changes
D
d
h
