Features:
Panel pre-filters are  widely used for primary filtration.
1. Superior dust-loading capacity;
2. Low pressure drop for low cost;
3. Large air flow

Structure:

Item	Material(Standard)	Material(Alternative)
Filter Media	Synthetic fiber/Glassfiber/Cotton/Non-woven fabrics
Frame	Cardboard	Aluminum/Galvanized
Protect Mesh	Aluminum net	Stainless Steel net
Filtration Efficiency	G2,G3,G4
Average Arrestance	85%-96%@5micron
Initial Resistance	30-50Pa
Final Resistance	200-250Pa
Temperature Limit	100℃
Color	Blue or white

Application:
Pleated Pre-Fitlers widely applied in gas turbine air inlet housing, air conditioning and ventilating system as a prefilter before medium filters and HEPA filters.

Model	Overall dimensions	Rated Air flow	Initial	Efficiency		Material
	(mm)	(m3/h)	Resistance
			(Pa)
TNBS295295	295*295*22/46	800	35	40%	G3/G4	Synthetic Fiber
TNBS495295	495*295*22/46	1300		Arrestance
TNBS495495	495*495*22/46	2200
TNBS595295	595*295*22/46	1600
TNBS595495	595*495*22/46	2700
TNBS595595	595*595*22/46	3200

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https://drive.google.com/file/d/0Bxk0k7JxzX13akxiZmZQZDhhTTg/view