Filtration Belts for Vacuum Filters
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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
SEFAR TETEX DLW for chemical applications 4
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 28 27 26 25 24 23 22 21 Throughput m 3 /m 2 x h Single layer belt DLW belt 5
SEFAR TETEX DLW HD for flue gas desulfurization (FGD) 6
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 07-8004 for gypsum dewatering. Special edge reinforcements and closures for FGD can be customized at one of our main fabrication centers. Tension in N/mm 100 80 60 40 20 Sefar DLW HD Sefar DLW 0 0 20 40 Elongation in % 7
SEFAR TETEX DLW HD for phosphate fertilizer production 8
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
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 (www.sefar.com) 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 05-8000-C 007 7 30 3.9 420 12.4 05-8000-C 008 8 40 5.2 420 12.4 05-8000-C 012 12 50 6.5 455 13.5 05-8000-C 020 20 100 13.0 425 12.6 05-8000-C 030 30 200 26.0 360 10.7 05-8100-C 041 41 160 20.8 550 16.3 05-8000-C 050 50 400 52.0 440 13.0 05-8100-C 081 81 550 71.5 575 17.0 05-8000-C 085 85 600 78.0 440 13.0 05-8000-S 120 120 1500 195.0 425 12.6 05-8100-S 161 161 2300 299.0 585 17.3 PET DLW 07-8001-C 020 20 100 13.0 660 19.5 07-8001-C 030 30 200 26.0 660 19.5 07-8001-C 050 50 400 52.0 660 19.5 07-8001-C 085 85 550 71.5 660 19.5 07-8001-S 120 120 2200 286.0 670 19.8 PEEK DLW 17-8000-C 085 85 800 104.0 515 15.2 17-8000-C 104 105 1170 152.1 515 15.2 17-8000-S 154 154 2360 306.8 505 14.9 PET DLW HD 07-8004-C 020 20 100 13.0 785 23.5 07-8004-C 030 30 300 29.0 785 23.5 07-8004-C 040 40 350 45.5 785 23.5 07-8004-C 050 50 450 58.5 730 21.6 07-8004-C 085 85 550 71.5 730 21.6 07-8004-S 120 120 2300 299.0 730 21.6 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
Headquarters Sefar AG Hinterbissaustrasse 12 9410 Heiden Switzerland Phone +41 71 898 57 00 Fax +41 71 898 57 21 filtration@sefar.com www.sefar.com Subsidiaries Europe Sefar Ltd. Bury England Phone +44 161 765 3530 sales@sefar.co.uk Sefar Fyltis S.A.S. Lyon Cedex 03 France Phone +33 472 13 14 15 vente@sefar-fyltis.fr Sefar GmbH Edling Germany Phone +49 8071 90400 0 info@sefar.de Sefar Italia S.r. l. Collegno Italy Phone +39 011 42 001 info@sefar.it Sefar B.V. Lochem Netherlands Phone +31 573 25 82 50 info@sefar.nl Sefar sp. z o.o. Poznan Poland Phone +48 511 467 467 info-pl@sefar.com Sefar Maissa S.A. Cardedeu Spain Phone +34 93 844 47 11 info.maissa@sefar.com Sefar Filtrasyon San. ve Tic. Ltd. Sti. Ankara Turkey Phone +90 312 287 34 14 info.tr@sefar.com Subsidiaries Americas Sefar Inc. Depew USA Phone +1 800 995 0531 filtration@sefar.us Sefar BDH Inc. Saguenay Canada Phone +1 418 690 0888 info.bdh@sefar.com Sefar Tenyl Tecidos Técnicos Ltda. Guarulhos Brazil Phone +55 11 2137 1555 contato.brasil@sefar.com Sefar S.A. de C.V. Cuautitlan Izcalli Mexico Phone +52 55 5394 8689 info.mexico@sefar.com Subsidiaries Australia & New Zealand Sefar Pty. Ltd. Huntingwood Australia Phone +61 2 8822 1700 oceaniasales@sefar.com Sefar Filter Specialists (NZ) Ltd. Auckland New Zealand Phone +64 9 622 3330 salesnz@sefar.com Subsidiaries Asia Sefar Filtration Solutions (Suzhou) Ltd. Suzhou China Phone +86 512 6283 6383 info.cn@sefar.com Sefar Filtration (India) Pte. Ltd. Thane India Phone +91 2522 294034 /35 /36 info.in@sefar.com Sefar Singapore Pte. Ltd. Indonesia Jakarta Barat Indonesia Phone +62 21 5890 2065 /66 /68 info.id@sefar.com Sefar Co. Ltd. Osaka Japan Phone +81 64 709 1070 info.jp@sefar.com Sefar Fabrication (M) Sdn Bhd Johor Malaysia Phone +60 7 867 7188 info.my@sefar.com Sefar Singapore Pte. Ltd. Singapore Phone +65-6299 9092 info.sg@sefar.com 3105-0256-000-00 06.2012 SEFAR and SEFAR TETEX are registered trademarks of Sefar-Holding buobundschiess.ch