VLV55|VLV65 - Volumetric flow controller
TECHNICAL DOCUMENTATION
Available sizes | Useable volumetric flow ranges
Construction subject to change
No return possible
Version: 2017-04-24 | Page 5
Detail X
AVAILABLE SIZES
NW
[mm]
øD
[mm]
d (55)
[mm]
d (65)
[mm]
L
[mm]
Weight
[kg]
100
98 53 63 330 1.5
125
123 67 79 370 1.9
160
158 86 102 420 2.5
200
198 108 128 480 3.4
250
248 136 160 570 4.8
315
313 171 203 690 7.0
NW 100 - NW 315 sealing airtight to DIN-EN 1751, class 4.
Dimensions
VLV55 / VLV65
USEABLE VOLUMETRIC FLOW RANGES
VLV55
VLV65
NW
V
V
min
V
max
V
min
V
max
(mm)
(0.5 m/s)
(5 m/s)
(1 m/s)
(8 m/s)
100
m³/h
13
132 26 211
l/s
4
37
7
59
125
m³/h
21
210 42 334
l/s
6
58
12
93
160
m³/h
35
346 69 554
l/s
10
96
19
154
200
m³/h
55
546 109 874
l/s
15
152
30
243
250
m³/h
86
859 172 1374
l/s
24
239
48
382
315
m³/h
137
1372 274 2195
l/s
38
381
76
610
ATTENTION: Important for parameterisation of the VLV
The table corresponds to the complete measuring range.
When the air volume drops below V
min,
the correct function-
ing of the volumetric flow controller is no longer guaranteed.
If only V
max
is specified in the order, a variable volumetric
flow controller will be delivered. The V
min
value will be set to
the value specified in the catalogue.
If only one air volume is specified in the order (as V
min
or V
kon-
stant
), then the volumetric flow controller will be delivered as
a constant volumetric flow controller. The volume specified
in the order is set to the V
min
value, and the V
max
value is set
to 100%.
The air volumes V
min
and V
max
and the operating mode 0/2-10
V can be changed directly at the controller within the nomi-
nal volumetric flow.
For the parameter setting of the control components, an air
density of 1.2 kg/m³ has been taken into account.
If no values are specified in the order, the controller will be
programmed with the values of the complete measuring
range. The following calibration curves are taken into ac-
count:
--- VLV55 ... 5 m/s;
--- VLV65 ... 8 m/s.
The first adjustment of the V
min
, V
max
and V
nenn
operating volu-
metric flows is done prior to delivery ex works in accordance
with customer specifications (calibration for delivery address).
When these values are set, the functions of all volumetric flow
controllers are also checked.
