3-Screen Filter
3-Screen Filter is a superior dust filtration, EMI shielding filter for minimum air flow requirements. Aluminum extruded profiles surround three layers of aluminum screen and are welded in place. Three layers of wave formed aluminum wire screen, each with a decreased depth are layered together resembling the look of a continuous wave. The combined layers of aluminum screen entrap dust particles. Both sides of the 3-Screen Filter are protected by a rigid grill. Select from Multi Gasket, a combination of neoprene sponge and monel mesh, Wire-Knit or conductive gaskets for shielding and environmental requirements. Through hole locations are customized for easy surface mount installation with standard 8-32 rivnuts or .203 diameter holes. Plating options enhance shielding effectiveness. 3 Screen Filters can be vacuum cleaned in place, removed and blown with light compressed air or cleaned with mild detergent, 3-Screen Filter is suited for use in enclosures, electronic equipment and portable military control stations.
*When cleaning, care should be taken with the EMI gasket.
* 3-Screen Filter available in Round Vent design
Material Specifications:
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Frame: Aluminum 6063-T4 alloy per ASTM-B221
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Core Material: Aluminum 1,2,3 Screen
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Grill: Aluminum Alloy 3003 H14 per ASTMB-209
Gasket:
Multi-Gasket
• Neoprene Sponge ASTM-D-6576
• Silicone Solid Grey or Orange A-A-59588
• Silicone Sponge per AMS-3195
• Conductive Gasket per MIL-G-83528
Wire-Knit
• Aluminum Wire per AMS-4182 / 5056 Alloy .005 wire diameter
• Monel Wire per QQ-N-281 .0045 wire diameter
• Sn/Cu/Fe per ASTM-B-520 .0045 wire diameter
Finish Options:
• Chromate Coating MIL-DTL-5541 Type I or Type II, Class 1 or Class 3 (Gold or Clear)
• Tin Plating ASTM B 545 Class C
• Electroless Nickel AMS-C-26074 or AMS-2404 Class 1
• Cadmium AMS-QQ-P-416
Frame Designs
3-Screen Filtering Performance
