Installation of spray booths
The powder supply and coating powder feedlines should be interlocked with the air extraction system,so that ,in the event of failure of the ventilatioon system,the coating powder and powder supplies are cut off.Airflow monitor switches are the preferred method of detecting failure of the ventilation system.Such equipment will also be sensitive to blocked filters and broken or loose fan blades.
A fire detecting device,interlocked to shut off powder and coating powder supplies and ventilation may be installed in the booth and coating powder processing areas an additional precaution.
A flame detection devices is recommended for fully automatic booths.It should be sited inside the booth and be interlocked with the high voltage supply,the coating powder feed line and the fans in the extract system.
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