PG4-25 – Pre-filter with filter blanket

APPLICABLE IN MODELS: AD-25

• Grammage: 250 g/m2
• Composition: Synthetic polyester fiber
• Approximate thickness: 22mm
• Nominal working speed: 1.5 m/s
• Flow m2: 5,400 m3/h
• Initial pressure loss: 46 Pa (at a nominal flow rate)
• Recommended final pressure drop: 250 Pa
• Load loss supported: 450 Pa
• Average filtration EN779: 90%
• Efficiency according to ISO 16890: ISO COARSE 75%
• Maximum temperature: 100ºC
• Relative humidity resistance: 100%
• Fire resistance: F1
• Dust collection capacity: 615 g/m2

Panels with a G4 filter blanket are designed for filtration in ventilation systems and air treatment systems where a high degree of air cleanliness is required. The blanket is made of non-woven synthetic polyester fiber thermally compacted into different layers of fibers creating a progressive structure and higher density in the part where the clean air is found. This type of blanket has a great dust retention capacity, supporting high air flows and showing 100% water resistance without collapsing like other untreated filters. The supply is made with a metal support in galvanized steel painted in oven-dried polyester gray RAL 7035 or in AISI-304 stainless steel.

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