Catalogue 9 - STAUFF Filtration Technology

www.stauff.com/9/en/#181 G 181 Micro Filtration At the heart of the STAUFF Offline and Bypass Filter Unit is the unique microfilter element. This filter is designed with a radial flow path. The element is constructed with 0,5 micron media and is therefore able to remove the smallest particles (silt) from the oil. The filter material is composed primarily of cellulose, which is applied by a special wrapping method. Glass Fibre and water absorbing elements with 3-20 µm are available on request. The cellulose material is capable of retaining solid particles and absorbing water. This helps to prevent chemical deterioration of the oil and the formation of various acids and sludge. Hydraulic cylinder extension for example, can draw air, solid contamination particles and water vapour into the oil reservoir. The water vapour condenses due to temperature changes and causes not only oxidation of the oil, but can also lead to serious mechanical wear in the system. Air Conditioning Standard air filters remove a certain amount of solid particle contamination from the air but allow water vapour, to pass through. The STAUFF “Air conditioners” type SDB and SVDB ensure that incoming air is first dried and then filtered. The SDB and SVDB units should be used in conjunction with the OLS / BPS Systems in order to provide a more complete filtering system. See Catalogue No. 10 - Hydraulic Accessories for more details. Advantages ƒ Less mailfunction ƒ Protection of expensive main stream filters ƒ Less frequent oil changes ƒ Extended usable life of the oil ƒ Less machine downtimes Characteristics ƒ A filter fineness of 0,5 micron ß 0,5 ≥ 200, ß 2 ≥ 2330 ƒ Large particle collection capacity ƒ High filtration capacity due to depth effect ƒ Large water adsorption capacity ƒ Do not adversely affect viscosity or additives ƒ Do not remove additives ƒ Reduce the oxidation process ƒ Reduce the forming of acids ƒ With two measuring points for particle counter or oil sampling ƒ Save Cost System Contamination In today’s hydraulic market it is an accepted fact that contamination causes 70 % of all mechanical failures. This contamination results from the presence of solid particles such as metal, sand and rubber. Changes in temperature cause water vapour to condense, resulting in unwanted water in the oil, the presence of this water accelerates the deterioration of the oil. Mainstream filters are incapable of removing particles, smaller than 2 micron (better known as silt). Fluctuations in pressure and flow result in changing conditions preventing these filters from carrying out fine filtration; most of the silt remains in the system affecting the chemical composition of the oil. All these problems lead to reduced oil life and increased component wear, maintenance costs and machine downtime. Removing silt and preventing the formation of free water will combat these problems. Filter Element Design Filter Element SRM-30/-60 Air Conditioners SDB / SVDB Applications ƒ Mining ƒ Harvesting ƒ Forestry ƒ Agricultural ƒ Off-road ƒ Fishing ƒ Road construction ƒ Cranes ƒ Airport equipment ƒ Flight simulators ƒ Pulp and paper ƒ Food processing ƒ Presses ƒ Automotive industry ƒ Timber plants ƒ Plastic and rubber ƒ Metal industry ƒ Cement and concrete ƒ Material handling ƒ Bridges/Hydraulic locks/Water works ƒ Petrochemical industry ƒ Power stations ƒ Marine ƒ Steel Catalogue 9 § Edition 02/2023 Offline and Bypass Filters

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