CAMCORP SWF with Internally Mounted Fan - Manual (Page 17)

G. Observe the manometer or magnahelic differential pressure gauge reading.
As the new filter bags become coated with dust, the efficiency of the filtering
action increases, and the differential pressure across the filter bags will also
increase. Slowly bring the collector to full load and note the final pressure
drop across the filter bags. Never allow the pressure drop across the filter
bags to exceed 17” w.g. maximum or filter bags may collapse.
H. Check the main airflow with a pitot tube, or equivalent measuring device, to
establish initial conditions. If the main airflow must be adjusted up or down
to suit the process, repeat step 2-H above.
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