Filtration Belts for Vacuum Filters

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1 Filtration Belts for Vacuum Filters

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3 SEFAR belt technology belts for a lifetime Solutions in double layer weave for horizontal vacuum belt filters Knowing and understanding a filter process is a prerequisite for the development of filter media. Sefar has been fostering this core competence for decades and consequently has been developing double layer weave (DLW) technology for filter media made of synthetic yarns. We now offer the widest range of DLW filter media worldwide. SEFAR TETEX DLW filter media is available in a wide range of fabrics, from standard polyester to polyether ether ketone (PEEK) probably the most powerful synthetic material worldwide. SEFAR TETEX DLW filter media have proven to deliver outstanding filtration performance and have a very long service life due to their robust construction. New generation double layer weave fabric Our latest innovation, the heavy-duty line SEFAR TETEX DLW HD, brings our customers the next generation of filter media. Double Layer Weave DLW From double layer weave fabric to horizontal vacuum belt solution SEFAR TETEX DLW HD is produced in our own European production facilities. Sefar itself carries out the process chain from yarn to filter media, thus ensuring a constant Sefar high quality. The filter fabrics are distributed to our subsidiaries and partners around the world. Our local Sefar representative has full expert knowledge of your process and can ensure that your vacuum belt solution is customized precisely to your requirements, from specified edge coating to endless belt solutions, etc. Your profit belts for a lifetime The new heavy-duty line SEFAR TETEX DLW HD has enhanced mechanical strength and filter performance, thus resulting in lower operating cost and longer service life belts for a lifetime! Double Layer Weave Heavy Duty DLW HD Belts for a lifetime Better filtration performance Maximized number of pores enhances filtration performance Clogging resistance Smooth surface makes cake release easy and avoids the trapping of particles in the belt Solution from one source Better mechanical performance Robust fabric reduces the risk of wrinkling and leads to a long and trouble-free service life 3

4 SEFAR TETEX DLW for chemical applications 4

5 Belts for chemical applications Zeolites and silicates Are you one of the world s leading producers of zeolites and silicates? If so, you need to have high performance and productivity use Sefar DLW technology. SEFAR TETEX DLW Sefar has made innovations with its asymmetric double layer weave and has consequently been able to enlarge its belt product range. Pore sizes from 7 to 154 micron and materials such as PP, PET, E-CTFE and PEEK are part of the standard range. SEFAR TETEX DLW is the preferred horizontal vacuum belt filter media. Trust SEFAR TETEX DLW vacuum belt solutions. Optimised smooth surface Pores per cm 2 of a standard filter belt compared with a SEFAR TETEX DLW belt Good cake release thanks to a smooth surface Throughput m 3 /m 2 x h Single layer belt DLW belt 5

6 SEFAR TETEX DLW HD for flue gas desulfurization (FGD) 6

7 Belts for environmental processes Easy installation of a new SEFAR TETEX DLW HD vacuum belt Flue gas desulfurization (FGD) Environmental and health issues are a major concern worldwide. Because of this, governments enact new legislature, which means that companies have to modernize and change their processes in order to reduce their environmental impact. Flue gas desulfurization is a highly sophisticated process in modern power plants, which very efficiently reduces the environmental impact of flue gases. SEFAR TETEX DLW Our double layer weave family, SEFAR TETEX DLW, is unrivalled for efficiency, permeability and performance in the environmental industry. The increased strength as a consequence of a special weave construction of SEFAR TETEX DLW HD bring these advantages to FGD applications. High mechanical resistance brings these advantages and long-lasting throughput are usually mutually exclusive. Sefar has risen to this challenge and now offers the SEFAR TETEX DLW HD for gypsum dewatering. Special edge reinforcements and closures for FGD can be customized at one of our main fabrication centers. Tension in N/mm Sefar DLW HD Sefar DLW Elongation in % 7

8 SEFAR TETEX DLW HD for phosphate fertilizer production 8

9 Belts for fertilizer production Phosphate rock washing and leaching Mineral fertilizers increase the growth rate and yield of plants and also improve their quality. In a world having an ever-increasing population and changing food patterns, fertilizers play an important role in food production. SEFAR TETEX DLW HD Sefar has introduced a heavy-duty DLW for the phosphate industry for rock washing and phosphate leaching. The demanding industry environment requires filter belts having high mechanical safety margins and superior filter performance. If required, state-of-the-art edge reinforcements and Hasteloy closures are part of the ready-to-use belt package. reinforced fabric for high mechanical resistance Optimal fabric choice leads to dry cakes 9

10 SEFAR TETEX DLW for horizontal vacuum belt filters Technical data Sefar offers a wide and complete range of fabrics and wire cloths for a huge variety of applications. For complete technical lists of all our fabrics respectively for information on local specialties please consult our homepage ( or contact your local Sefar sales organisation. Product reference Pore size [μm] Air perm. at 200 Pa [l/m 2 s] Air perm. at 125 Pa [cfm] Weight [g/m 2 ] Weight [oz/yd 2 ] PP DLW C C C C C C C C C S S PET DLW C C C C S PEEK DLW C C S PET DLW HD C C C C C S S = stretched C = stretched and calendered Main range other fabrics on request All technical data are to be considered as guidelines only. Standard widths up to 350 cm, wider belts on request 10

11 Headquarters Sefar AG Hinterbissaustrasse Heiden Switzerland Phone Fax Subsidiaries Europe Sefar Ltd. Bury England Phone Sefar Fyltis S.A.S. Lyon Cedex 03 France Phone Sefar GmbH Edling Germany Phone info@sefar.de Sefar Italia S.r. l. Collegno Italy Phone info@sefar.it Sefar B.V. Lochem Netherlands Phone info@sefar.nl Sefar sp. z o.o. Poznan Poland Phone info-pl@sefar.com Sefar Maissa S.A. Cardedeu Spain Phone info.maissa@sefar.com Sefar Filtrasyon San. ve Tic. Ltd. Sti. Ankara Turkey Phone info.tr@sefar.com Subsidiaries Americas Sefar Inc. Depew USA Phone filtration@sefar.us Sefar BDH Inc. Saguenay Canada Phone info.bdh@sefar.com Sefar Tenyl Tecidos Técnicos Ltda. Guarulhos Brazil Phone contato.brasil@sefar.com Sefar S.A. de C.V. Cuautitlan Izcalli Mexico Phone info.mexico@sefar.com Subsidiaries Australia & New Zealand Sefar Pty. Ltd. Huntingwood Australia Phone oceaniasales@sefar.com Sefar Filter Specialists (NZ) Ltd. Auckland New Zealand Phone salesnz@sefar.com Subsidiaries Asia Sefar Filtration Solutions (Suzhou) Ltd. Suzhou China Phone info.cn@sefar.com Sefar Filtration (India) Pte. Ltd. Thane India Phone /35 /36 info.in@sefar.com Sefar Singapore Pte. Ltd. Indonesia Jakarta Barat Indonesia Phone /66 /68 info.id@sefar.com Sefar Co. Ltd. Osaka Japan Phone info.jp@sefar.com Sefar Fabrication (M) Sdn Bhd Johor Malaysia Phone info.my@sefar.com Sefar Singapore Pte. Ltd. Singapore Phone info.sg@sefar.com SEFAR and SEFAR TETEX are registered trademarks of Sefar-Holding buobundschiess.ch