SGB VL-H9, Руководство пользователя

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M.:
Date: Feb. 98
Page: 13
Vacuum Leak Detector
VL - H9
SGB
Sicherungsgerätebau
GmbH
57076 Siegen
6.3 Installation of the pneumatic connection lines
(1) Attention : The connection lines and all fittings must have a min. compressive strength of PN10.
(2) Detonation protections are installed directly on the tank connections.
(3) A liquid barrier is installed in the suction line (vertical installation).
(4) Stop valves are installed in the suction and measuring line on the tank side. It must be possible
to leave these stop valves in an open position. On the tank connection side, the suction line is
provided with a connecting sleeve for pump installation.
(5) The connection lines must be rigid metallic pipes (e.g. copper pipe).
(6) The pipes must have the following dimensions and colour codes:
Suction line: min. 8 x 1 mm ends with white colour rings
Measuring line: min. 8 x 1 mm ends with red colour rings
Exhaust line: min. 8 x 1 mm ends with green colour rings
(7) Connection lines must be installed with a continuous drop of a minimum of 4%. If this is not
possible, a compression-proof condensate trap must be provided for at each low point.
(8) In the case of tanks where condensate may be produced (e.g. tanks to DIN 4119), a
compression-proof condensate trap with a min. capacity of 0.5 litres must be installed in the
suction line upstream of the liquid barrier.
(9) Attention : Confusion of tank connections and connection lines may lead to tank destruction.
(10) The exhaust line is connected to the tank ventilation outlet led into the leakage containment (e.g.
DIN 4119).
Where neither solution is not possible (e.g. tank with excess pressure, without leakage
containment), the exhaust line may end outdoors in a safe place (min. height 1 m, no ignition
source within a radius of 1 m). In such a case, an additional liquid barrier in the exhaust line is
compulsory.
(11) Attention:Under no circumstances should an exhaust line terminating outdoors be used for
detecting a leak ( e.g. by sniffing). Warning signs should be used, if this is a
possibility.
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