Hydraulic Filter Capacity

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mansilakhani Associate Join Date: Jun 2009 Location: Mumbai Posts: 36	Hydraulic Filter Capacity 03/04/2010 11:10 PM
	What governs dirt holding capacity in a hydraulic filter?
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#1 Re: Dirt holding capacity of a hydraulic filter. 03/04/2010 11:25 PM
	The amount of dirt it can collect and yet leave enough area of the element(s) to allow acceptably high flow at acceptably low pressure difference. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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Drew K Guru Join Date: Sep 2009 Posts: 1651 Good Answers: 71	#3 In reply to #1 Re: Dirt holding capacity of a hydraulic filter. 03/05/2010 10:48 AM
	Like Tornado said, it will collect dirt until the presser differential becomes excessive and the media collapses or ruptures. What that means is as the filter becomes clogged with dirt it will block more and more of the liquids flow until a critical point is reached and failure occurs. With some oil filters, there is a by-pass valve, usually a spring loaded plate that will compress and allow the oil to pass even if the filter becomes too clogged; after all to an engine, or hydraulic pump, dirty oil is better than no oil. Drew __________________ Question: What is going on with the American's Government? Response: Who is John Galt?
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Anonymous Poster	#2 Re: Dirt holding capacity of a hydraulic filter. 03/05/2010 8:20 AM
	A filters Debris capacity is mainly determined by filter media area, porosity and outer shell or container / media capacity. The amount , size and packing characteristics of particulate matter along with fluid composition and contamination particle size greatly reduce usable Delta pressure range. The only true determination of real capacity limit can be determined by pressure drop across filter at a given viscosity. When in doubt change it at factory reccomended time versus operating conditions and enviroment. EDDY
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