Leak detector type LAG 2000 A
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part no. 15 071 53 e
Installation dimension
a
for the LDL tank within the scope of replacing leak detectors
•
The minimum installation dimension amin for replacing leak detectors within the scope of
TRbF 501 is to be determined according to calculation equations [5] and [6] and be
complied with. The installation dimension
a
max
may not be exceeded and must be
determined according to calculation equation [4].
•
The following applies:
a
min
≤ a ≤
a
max
[1]
•
Distance between the check valve and the bottom of the LDL tank: ≥ 10cm
The arrangement of the LDL tank for above-ground and underground tanks is shown
schematically in
Figure 4
.
Calculation equations for installation dimension
a
(scope a TRbF)
a
min
=
D
x (
ρ
- 1) +
p
o,1
+ 30
[5]
Calculation equation [5] applies only with [6]
a
≥ w + 30
[6]
Tabelle 7:
The following changes compared to Table 6 (scope TRbF):
Symbol
Unit
Explanation
Comment
30
cm
Safety allowance
only for underground tanks
According to VdTÜV fact sheet 904
•
For underground tanks
diagram 3
can be used to determine the minimum installation
dimension
a
min
in relation to the density of the storage medium with the parameter tank
diameter D or tank height
L
.
Assumed as:
p
s,2
= 550mbar,
w
= 0,
p
o,1
= 0
•
As opposed to calculating the installation dimension a according to EN 13160-3, when the
installation dimension a is calculated according to TRbF 501 and VdTÜV
fact sheet 904, the bottom of the LDL tank is used as the reference line.
Min. installation dimension
a
min
for underground tanks acc. to DIN 6608-2, DIN 6619-2
Diagramm 3:
Density of the storage medium in [kg/l]
M
ini
m
um
ins
ta
lla
tion di
m
ens
ion
a
m
in
[c
m]
