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| Operation Manual C 2214 | Installation
A collective pipe connects all cylinders forming one pressure system so that chlorine is supplied simultaneously
from all cylinders. For connecting the chlorine cylinders with the collective pipe flexible copper pipes are used.
Each flexible copper pipe is equipped at the end with an cylinder auxiliary valve which is closed when exchang-
ing the cylinders so that the escape of chlorine gas is avoided.
5.1.3 Comments regarding chlorine drums
At higher metering capacities chlorine drums are often used. Depending on the ambient temperature, up to
7 kg/h chlorine gas may be supplied from a 1,000 kg drum (10°C:3kg/h, 15°C:5kg/h, 20°C:7kg/h). Chlorine
drums are equipped with two connections, one for gaseous chlorine supply and one for liquid chlorine supply.
For more information on which connection is suitable for which mode of delivery, contact the supplier. In some
countries, valves may be situated at the top. These are designed for an extraction of liquids. In the following
picture, you see an example of a German drum.
①
②
③
Fig. 5:
①
Extraction in form of gas,
②
marking on the drum,
③
extraction in form of liquid.
The position of the drum on the support must be such that the feedpipe in the barrel is vertical (marking on
the drum horizontal). In this case the position of the connecting valves needs not be observed as they are
staggered.
ATTENTION!
Never install the vacuum regulator directly at the chlorine drum.
After transportation the feedpipe is mostly filled with liquid chlorine which must not penetrate the metering
units. Therefore a catch pot should be provided. The installation of a heating element for evaporating the liquid
may also be useful.
Fig. 6: Installation of the drum
5.2 Design of the piping system
For leading the chlorine gas metal and plastic pipes are used. In the overpressure range metal pipes are
mandatory, in the vacuum range mainly plastic pipes are installed.
