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Description: PartnerFilter makes the replacement of Parker & Velcon cartridges SD-718 and many other different brands coalescer and separator of PECO&FACET,FAUDI, to be used dissolved water removal from insulating oil is now possible without the need for heat and vacuum oil processing systems.Specifically developed for dehydrating oil to be used in transformers,SD-718 series cartridges can help utilities reduce expenses and increase efficiency when processing oil.
SD-718 coalescer structure: The SD-718 coalescing filter utilizes CarboMax. Manufactured from CarboMax cans contain 100% virgin granular activated carbon made from coal, which undergoes a high-temperature steam activation process under strict quality control. CarboMax carbon outperforms carbon made from a blend of shells, ash and recycled carbon to create coalescer filter cartridges that extend service life, process performance and product quality.
SD-718 Features : • Unique Construction – Specifically designed for transformer oil dehydration. • High Capacity – Process up to 5,000 gallons of oil or more with a single cartridge. • Efficient – Single pass water removal to less than 10 ppm total water,or better. • Versatile – Models available to fit most industry standard housings. • Safe – Will not remove oxidation inhibitors. • Cost Effective – Process transformer oil for less than per gallon.
Special Considerations of SD-718: SD-718 series cartridges are not designed for particulate removal.Prefiltering through Velcon 1/2 micron elements is recommended if particle contamination is suspected.SD-718 Series cartridges are not recommended for cost effective removal of free water in insulating oil. If free water is suspected, the oil should be prefiltered using Velcon Aquacon elements. We make SD-718 series cartridges are Beta grade. Excellent filtration performance. The Beta X = 1000 number means that for every 1000 particles of size x in the fluid, on average only one particle will pass through the filter. 
Applications: • SD-718 Series cartridges are designed for oil processing situations where dissolved water in insulating oil is a concern, and its removal is desirable. Examples of these situations follow: • New distribution and EHV transformers are typically oil filled under vacuum.If the insulating oil has a high total water content, it is also processed through a heat and vacuum system.SD-718 Series cartridges can be used instead of heat and vacuum to dry the oil. • Repaired transformers are often oil filled under vacuum.Flowing the oil through SD-718 Series cartridges eliminates the need to vacuum process the oil.Insulating oil in storage tanks, and tankers of oil that have accumulated a high level of dissolved water can be recirculated and dried to less than 10 ppm total water using SD-718 Series cartridges.Use SD-718 Series cartridges for processing oil in other high voltage apparatus that is sensitive to dissolved water. • Use SD-718 Series cartridges to help meet processing specifications where dissolved water sensitive dielectric breakdown voltage test ASTM D-1816 is used or required.
Test standards: Before delivery, Our manufactured SD-718 Series cartridges will be tested and follow the standards: ISO 2941 Collapse & Burst Resistant ISO 2942 Fabrication & Integrity Test ISO 2943 Material Compatibility with Fluids ISO 3724 Flow Fatigue Characteristics ISO 3968 Pressure Drop vs. Flow Rate ISO 16889 Multi-pass Performance Testing
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