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4.0 SPECIAL CONDITION FOR SAFE USE IN REGARD TO THE HYDROGEN
RELIEF VALVE (OPTIONAL)
A hydrogen relief valve can be installed as an optional safety feature to prevent
hydrogen from building up in the interceptor.
Any gas which may develop escapes through the degasification valve. The valve is
“forced” open (spring return) when the vacuum cleaner stops and close again
automatically during suctioning.
IMPORTANT:
Check that the hydrogen relief valve is working properly
before use. Do not perform this check when the vacuum
cleaner is on. The valve disc should slot into place with gentle
pressure and automatically return to its original position with
the help of the pressure spring.
IMPORTANT:
The hydrogen relief valve must be open when the vacuum is
not in use.
WARNING: Flammable gas caused by chemical reactions between the liquid
present in the interceptor and the dusts recovered may develop in
the interceptor both during operation and idle time. Look at the
below drawing to identify where potentially explosive gas
atmospheres can be formed.
SPECIAL WARNING:
Hydrogen is extremely flammable and very easy to ignite. Hydrogen
shall not be trapped. Make sure to use the vacuum cleaner in a well
ventilated area where hydrogen gas can dissipate and free of
potential ignition sources. Lower Flammable Limit of hydrogen is 4%.
It is recommended to use ventilation in order to KEEP THE
CONCENTRATION OF HYDROGEN GAS WELL BELOW ITS LOWER
FLAMMABLE LIMIT AT/OR BELOW 1% CONCENTRATION IN AIR.
Содержание DETACHABLE TANK SERIES
Страница 42: ...Page 16 of 28 c Detach the recovery tank...
