STJH-WASHABLE-SYNTHETIC-PRE-FILTER-COARSE75

Washable Synthetic Pre-Filter ISO Coarse 75%

The deepest washable synthetic grade in the group, selected to protect downstream filters from heavier coarse loading.

20 mm maximum media depth
ISO Coarse 75%
1.0 m/s nominal media velocity

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Pengenalan Produk

This 20 mm progressive polyolefin mat provides ISO Coarse 75% performance at a nominal 1.0 m/s media velocity. Although its clean resistance remains 30 Pa, its greater depth and denser capture structure require more installed face area than the faster open grades. It is intended for reusable upstream protection where coarse dust would otherwise shorten the service life of finer filters.

Ciri-ciri Utama

Highest coarse efficiency

This grade provides the strongest coarse-particle arrestance among the three washable polyolefin media options.

Greater dust-storage depth

The 20 mm progressive structure offers more loading volume before downstream resistance rises.

Reusable protection stage

Cleaning access allows the coarse barrier to be serviced without replacing the finer filter behind it.

Parameter teknikal

Filter Medium	Progressive polyolefin nonwoven
Media Depth	20 mm
ISO Classification	ISO Coarse 75%
Rated Media Velocity	1.0 m/s
Initial Resistance	30 Pa
Construction	Washable synthetic filter mat
Dust-Loading Profile	Highest capacity in the washable synthetic group
System Role	Protection stage ahead of fine filters
Maintenance	Wash, dry fully and inspect before reuse
Penyesuaian	Boleh didapati berdasarkan aplikasi yang dimaksudkan dan persekitaran operasi.

Applications

Appropriate for industrial outside-air intakes, cleanroom support AHUs and process ventilation exposed to significant coarse dust. The medium is useful where reusable prefiltration is required to reduce loading on pocket, compact or final filters.

Solutions for Your Application

Fine filters require frequent replacement because coarse dust reaches them directly.Install the ISO Coarse 75% washable mat as an accessible upstream loading stage.

The denser mat is undersized for the available airflow.Calculate sufficient face area around the 1.0 m/s nominal media velocity instead of forcing the same flow through a smaller panel.

Pilihan yang boleh didapati

Confirm face area, retaining-frame depth, cleaning method and spare rotation quantity for the expected dust load.

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