Filter media

A filter media 40 including a scrim 72, a polytetrafluoroethylene (PTFE) media substrate 70 upon the scrim 72, and a layer of expanded polytetrafluoroethylene (ePTFE) membrane 76 adhered to the PTFE media substrate on the scrim. The filter media is pleatable and has air permeability of approximately...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ALAN SMITHIES, KARMIN LORRAINE OLSON
Format:	Patent
Sprache:	eng
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A filter media 40 including a scrim 72, a polytetrafluoroethylene (PTFE) media substrate 70 upon the scrim 72, and a layer of expanded polytetrafluoroethylene (ePTFE) membrane 76 adhered to the PTFE media substrate on the scrim. The filter media is pleatable and has air permeability of approximately 3 - 10 cubic feet/min at a 0.5 inch H2O pressure drop and an original filtration efficiency greater than 99.0% when tested in an unused, unpleated condition with a 0.3 micron challenge aerosol at a flow rate of 10.5 feet/min and when tested after a cleanable dust performance test according to ASTM D6830. Advantageously the filter media is used to filter air in baghouses.