VACUUM LEAK DETECTOR VL ..
8
- 8 -
(3) OUTSIDE potentially explosive areas.
(4) As near to the tank as possible (cf. section (6) of the following chapter).
4.3. Mounting the (pneumatic) connecting lines
(1) Plastic hoses (e.g. PVC) or tubes made of plastic or metal.
Pressure resistance, see requirements specified in chapter 4.1.
(2) Clearance at least 6 mm.
(3) Resistant to the product to be stored.
(4) Color marking:
Measuring line
: RED;
Suction line
: WHITE or TRANSPARENT,
Exhaust
line
: GREEN.
(5) The full cross-section must be retained.
(6) The length of the lines between the interstitial space and the leak detector should not ex-
ceed 50 m. If the distance is bigger, a larger pipe cross-section must be used.
(7) Routing lines with lowest points: mounting of condensate traps at each lowest point (heed
pressure resistance specified in 4.1).
(8) Mount the liquid stop valve in the suction line (heed pressure resistance specified in 4.1).
(9) Exhaust line must lead with slope to the tank ventilation outlet. In the case of laying with
lowest points, use condensate traps.
Alternatively: The exhaust line can terminate out in the open, at a non-dangerous spot. In
this case, provide for a condensate trap and liquid stop valve in the exhaust line
7
.
(10) Conduits for connecting lines have to be sealed gas- and liquid tight at the inlet and outlet
points.
(11) For applications using a pressure compensating vessel in the measuring line, if suction and
measuring line are connected together in a node point, the following shall apply:
Per 0.1 liter volume
8
of the pressure compensating vessel, the length of the measuring line
(L
max
) may only be a maximum of
VL 230 and VL 255
17 m (6 mm clearance)
39 m (4 mm clearance)
VL 320-420
21 m
47 m
VL(R) 330
16 m
36 m
VL(R) 410
12 m
28 m
VL(R) 500
10 m
22 m
VL(R) 570
8 m
18 m
NOTE:
The lower edge of the pressure compensating vessel must not be lower than the
node point, the upper edge of the pressure compensating vessel must not be more than 30
cm above the node point.
Per 10 ml of the condensate trap(s) mounted in the measuring line between pressure com-
pensating vessel and leak detector,
L
max
is reduced by
:
0.5 m (6 mm clearance)
1 m (4 mm clearance).
ALTERNATIVELY: In place of the pressure compensating vessel, the measuring line can
be laid from the node point over 50% of the measuring line length (=L
min
) with approx. 1%
slope to the node point.
7
Condensate trap and liquid stop valve are not required if the exhaust pipe ends above a liquid-proof
area (e.g. filling area, leak containment room).
8
Multiplying this volume leads to a multiplication of L
max
. Dividing this volume leads to a division of L
max
.
Summary of Contents for VL 230
Page 21: ...I I II II III III IV IV 21 21 21 21 20 20 20 20 27 11 2002 P 060 000...
Page 22: ...Ex 73 73 73 101 101 101 68 03 43 27 97 17 12 2002 A 01 60 102 76 30 21 61 20 H max...
Page 23: ...Ex 73 73 73 68 03 43 27 97 17 12 2002 B 01 H max H max 21 20 71 36 69 01 01 2 09 H max...
Page 24: ...Ex 73 101 43 03 68 33 17 12 2002 D 01 H max 27 21 20 71 69 01 09 H max...
Page 25: ...Ex 73 43 03 68 17 12 2002 E 01 H max 27 21 20 71 69 01 09 H max...
Page 26: ...Ex 17 12 2002 H 01 27 43 03 68 93 89 101 73 27 27 27 21 20 71 69 01 09...
Page 30: ...18 01 2002 L 01 27 02 82 101 73 33 68 43 03 Ex 21 20 71 69 01 09...
Page 31: ...18 01 2002 M 01 73 Ex 21 20 71 69 01 09 95 96 74 02 43 03 68 27 27 L max max 1 m...
Page 32: ...Ex 73 101 68 03 43 27 18 12 2002 O 01 21 20 71 36 69 01 01 2 09 27 33 44 p 10 bar...
Page 33: ...21 02 2017 SL 853 600 2 6 4 5 3 11 12 1 AC DC 105 106 102 71 01 69 24 1 24 3 59 09 76 17 60 Rp...
Page 35: ...22 84 85 85 22 52 98 98 0 Kl 1 0 17 12 2002 P 115 392 21 21 20 20 90 90...
Page 43: ...15 07 2008 W 01 27 02 82 101 111 112 73 33 68 43 03 Ex 21 20 71 69 01 09 50 150 C...
Page 44: ...Ex 73 101 112 68 43 97 15 07 2008 W 02 21 44 20 71 36 69 01 01 2 09 50 150 C...
Page 48: ...8 200 260 300 T 140 220 28 06 2005 Dimension Drilling...
