Installation | Operation Manual C 2213 |
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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. 7: 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.
5.2.1 Overpressure pipes
Chlorine gas metering units are perfectly suitable for gaseous chlorine. However, liquid chlorine chemically
attacks the unit. Therefore the penetration of liquid chlorine into the units must be avoided. Overpressure
pipes must be run upwards in direction of the metering units. This also applies for flexible connection pipes.
Therefore the turns of the flexible copper pipes must be positioned horizontally! condensate drops may flow
back into the cylinder.
Fig. 8:
Correct design of the pipes
As a result of temperature variations, chlorine gas may condense to liquid chlorine in the overpressure system.
Therefore a uniform ambient temperature must be provided. A room heating is recommended. If a uniform
temperature is not possible because of structural reasons, a pressure reducing valve has to be installed in
order to reduce the temperature at which condensation starts. It decreases the temperature, at which conden-
