Commissioning
Inspecting the pressure system
18
Vacuum Regulator for Chlorine Gas
C 2700-V
© Lutz-Jesco GmbH 2016
Operating Instructions
BA-21210-02-V05
7 Commissioning
7.1 Inspecting the pressure system
Check the tightness of the pressure system from the chlorine container
to the vacuum regulator in two stages:
7.1.1 Carrying out the leak test with nitrogen
Precondition for action:
All the open connections of the pressure system were closed
correctly.
All the shut-off valves in the pipe system were opened.
A nitrogen cylinder was connected.
Perform the following working steps:
1.
Slowly raise the system pressure on the nitrogen cylinder's pres-
sure reducing valve to 10 bar.
2.
Close the nitrogen cylinder's valve.
3.
Apply soap solution to all the potential leaks. Bubbles will appear at
leak locations.
4.
Close the output on the nitrogen cylinder's pressure reducing valve
and observe the pressure gauge in the installation. The pressure
must not drop within one hour.
5.
If necessary, repair leaks and repeat the leak test.
Leak test with nitrogen carried out.
7.1.2 Carrying out the leak test with chlorine
Precondition for action:
The leak test with nitrogen was carried out successfully.
All the open connections of the pressure system were closed
correctly.
A chlorine container was connected.
The injector is ready for operation.
Perform the following working steps:
1.
Briefly open the chlorine container valve and close it again.
2.
Carry out the ammonia test on the entire pressure system:
Ammonia steam with chlorine forms a white vapour and makes
even very small leaks visible. Hold an open bottle containing
ammonia solution close to the pipe and make slight pumping
motions with the plastic bottle.
Fig. 7-1: Leak test with ammonia
3.
If you find leaks: Use the injector to suction off the chlorine immedi-
ately! Repair leaks and repeat the leak test.
4.
If you do not find any leaks: Open the chlorine container valve and
leave it open.
DANGER
Chlorine gas can escape due to systems that are leaky
or not installed correctly!
Chlorinators represent an increased risk to safety if they have not
been installed properly, if adequate tightness tests have not been
performed or if the devices are not in a good condition.
Before commissioning the system, have an expert inspect that it
is tight and in the proper condition.
The condition of the installation must be checked for adequate
tightness on a regular basis.
Get rid of leaks without delay. You must get rid of even very
minor leaks without delay. Together with the humidity, chlorine
forms hydrochloric acid and corrosion rapidly results in
increased leakage.
You are strongly recommended to carry out this inspection
before carrying out the leak test with chlorine since it demon-
strates leaks in the pressure system without the risk of chlo-
rine escaping.
As an alternative, you can carry out the inspection using dry
compressed air.
i
DANGER
Danger to life from chlorine poisoning!
If you start the leak test with chlorine before the entire system has
been installed and the injectors are ready for operation, the chlorine
may not be extracted immediately in the case of a leak.
Make sure that all the components in the system are installed
correctly and the injectors are ready for operation before starting
the leak test with chlorine.
Put on protective clothing before carrying out the leak test with
chlorine.
NOTICE
Damage to the system by the ammonia solution
If the ammonia solution comes into contact with the system, this
leads to corrosion on the devices.
Make sure that you do not spill any ammonia.
NH
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