Filter media

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 (70) on the scrim (72). The filter media (40) is pleatable and has air perm...

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Hauptverfasser: ALAN SMITHIES, KARMIN LORRAINE OLSON
Format: Patent
Sprache:eng
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PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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creator ALAN SMITHIES
KARMIN LORRAINE OLSON
description 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 (70) on the scrim (72). The filter media (40) is pleatable and has air permeability of approximately 3 - 10 cubic/feet/min at a 0.5 inch H20 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.
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subjects PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
title Filter media
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