24/10/2018
PRESSURE LEAK DETECTOR
DLR-G ..
- 11 -
Pressure levels 10 to 18
10
< 9
> 10
< 12
13.5
0.3
17
0.3
> 15.4
13
11
< 10
> 11
< 13
14.5
0.3
18
0.3
> 16.5
14
12
< 11
> 12
< 14
15.5
0.3
19
0.3
> 17.6
15
13
< 12
> 13
< 15
16.5
0.3
20
0.3
> 18.7
16
14
< 13
> 14
< 16
17.5
0.3
21
0.3
> 19.8
17
15
< 14
> 15
< 17
18.5
0.3
22
0.3
> 20.9
18
16
< 15
> 16
< 18
19.5
0.3
23
0.3
> 22
19
17
< 16
> 17
< 19
20.5
0.3
24
0.3
> 23.1
20
18
< 17
> 18
< 20
21.5
0.3
25
0.3
> 24.2
21
Special switching values
agreed to by SGB and custom-
ers
Special switching values agreed to by SGB
and customers
The following abbreviations are used in the table:
p
B
Maximum operating pressure in the inner pipe (feed pr dy-
namic pr pressure due to geodetic height differences)
p
AE
Switching value "Alarm ON"; the alarm will be triggered at this pres-
sure level at the latest
p
PA
Switching value "Refilling OFF" (= operating pressure)
p
ÜDV1
Operating pressure to activate overpressure valve 1 (interstitial
space)
p
ÜDV2
Operating pressure to activate overpressure valve 2 (supply)
p
PRÜF
Minimum test pressure of the interstitial space
p
DM
Set pressure on the pressure reducer
Further switching values:
p
AA
Switching value "Alarm OFF"; the alarm will be deactivated if this
value is exceeded
[p
AA
= p
AE
+ ~250 mbar (pressure levels 1 to 9) and/or p
AA
= p
AE
+
~500 mbar (pressure levels 10 to18)]
p
PE
Switching value "Refilling ON" [p
PE
= p
PA
- ~250 mbar (pressure lev-
els 1 to 9) and/or p
PE
= p
PA
- ~500 mbar (pressure levels 10 to 18)]
Technical Data
