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Although the filter cloth may not be damaged by usual operation, stop the machine operation
and replace the cloth with a new one if it is damaged. Using a damaged filter cloth could not
only allow dust to be released into the atmosphere but damage the built-in blower as well.
Handle powder dust particles collected by the dust collector correctly according to the
national or local governmental regulations in the same manner as disposal parts such as old
replaced filter cloths, except when reusing them.
Differential pressure indication
The differential pressure gauge on the machine’s front indicates
differential pressures of the filter cloth (the cloth’s blinding levels).
Although the cloth’s differential pressure may vary a great deal
depending on its using condition, make it a rule to operate the
machine at 1.5 kPa or under. Generally, the filter cloth’s differential
pressure has the following tendency:
Filter cloth differential pressure low
high
Dust amount
Small
Large
Dust grain size
Large (50
µ
or more)
Small (10
µ
or under)
Dust attribute
Dry
Somewhat adhesive
Dust specific gravity
Heavy
Light
Treating airflow rate
Low
High
The airflow rate becomes higher than the rated airflow as:
Filter cloth d.p. + Duct piping resistance
≤
2.45 kPa (1.96 kPa for CFM-H10)
Even if the differential pressure has some allowance, please operate the machine at a flow rate lower than
the rated value as much as possible by so adjusting the airflow rate.
差圧計
Differential pressure gage