White Papers

 

Engineering Filtration Data

SELECTION OF SEPARATION PROCESS BY PARTICLE SIZE & CONTAMINATION LEVEL SELECTION OF GAS CLEANING EQUIPMENT SELECTION OF SEPARATION PROCESS FOR GAS APPLICATIONS CODE: R - RECOMMENDED | P - PREFILTRATION | S - SATISFACTORY SELECTION OF SEPARATION PROCESS FOR LIQUID APPLICATIONS CODE: R - RECOMMENDED | P - PREFILTRATION | S - SATISFACTORY CHARACTERISTICS OF PUMPS FOR FILTRATION APPLICATIONS Notes on pump applications: Reciprocating pumps seldom used in filtration systems because of destructive effect of surges on filter media pump life can be prolonged significantly if the pump can be neutralized or flushed with clearwater after each use or at...

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Evaluating Fabrics for Dust Collector Filter Bags

A significant portion of the dust collector market - particularly owners of the smaller dust collectors that dominate industry - are reluctant to try new filter bag fabrics. Perhaps the paramount reason is lack of sufficient laboratory data. When you've committed substantial money, and if what you're using works, you'll probably resist any sales pitch that comes without sufficient test data. Instead, you may adhere to the time-honored philosophy, "If it ain't broke, don't fix it." This article illustrates that sufficient comparative test data is available, enabling you to intelligently choose a different filter bag fabric. Criteria are presented for...

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Are Your Dust Collecting Techniques Gathering Dust?

If you've been using the same style dust collecting bags for many years, operating your dust collector could be costing much more than it should. Here are five areas of concern where current technology can save you money the next time you change bags ... 1. Reduce Energy Consumption: Proper fabric selection can lower pressure differentials reducing the cost of electricity per cubic foot of air. 2. Longer Bag Life: More durable fabrics can increase the length of time bags will function efficiently creating annual savings in bag costs and installation. 3. Lower Bag Cost: Replacement of existing fabric, felt...

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Filtration Applications for Industry

The LAST thing GREAT LAKES Filter wants to do is select your filtration system. Before that, let's take a closer look at your filter problem and evaluate the following determinants: Nature of fluid Operating conditions Required micron retention Flow rate Initial (clean) pressure drop If assistance in establishing these values is required, we offer the following: "ENGINEERING FILTRATION DATA" Laboratory Analysis Consultation with your GREAT LAKES field representative            Filter Selection Laboratory Analysis Samples can be analyzed for percentage of contamination by gravimetric methods using the membrane filter technique. Particle size can be determined by microscopic...

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Textile Filter Medias

TEXTILE FILTER MEDIAS By: Jose M. Sentmanat, Consultant Under the broad term of “FILTER MEDIAS” we find “Synthetic Filter Medias” such as: woven filter cloths, woven and non-woven filter media and filter felts.  The  term “Synthetic” encompasses cloths made of polyethylene, polypropylene, polyester, nylon as well as other special materials such as saran, polyamide, “Nomex”®, peek, fluoroplastic and other specially made materials for specific applications.  Originally the material used for filter media were silk, cotton and wool.  Due to the limitations on the usability of those materials synthetic materials have become more used in filtration applications.  While cotton and wool...

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