seitzschenk supradisc depth filter modules

Transcription

1 seitzschenk supradisc depth filter modules

2 EXCEPTIONAL STABILITY STACKED FILTER DESIGN SeitzSchenk SUPRAdisc modules and VELAdisc TM housings are designed to make filter changeout simple and minimize system downtime. COMBINING THE ADVANTAGES OF DEPTH FILTER SHEETS AND ENCLOSED FILTERS SUPRAdisc stacked disc modules incorporate all the advantages of SeitzSchenk depth filters with the benefits of enclosed filters. The combination of these features offers SeitzSchenk customers the ability to achieve better filtration more efficiently than ever before. This stacked filter system functions similarly to prefilter cartridges, with very high contaminant holding capacities and excellent retention capabilities. In many applications, the SeitzSchenk SUPRAdisc system performs better than pleated prefilter cartridges. SeitzSchenk SUPRAdisc modules offer unique design and construction, providing exceptional mechanical stability not found in other stacked filter modules. THE SEITZSCHENK SUPRADISC MODULAR SYSTEM Each SeitzSchenk SUPRAdisc module consists of four major components: Depth filter media Edge sealed discs A tubular center core End caps/adapters Filter cells are comprised of two layers of filter media with a drainage plate in between. The filter cells are edge-sealed in an injection mold process. SeitzSchenk s patented design results in a bypass-safe module. Retightening after wetting is not necessary. SEITZSCHENK SUPRADISC FILTERS The filter media used in SUPRAdisc modules are identical to those used in conventional plate filters. The mechanical strength of SeitzSchenk s filter sheet media makes it ideal for modular applications. All grades of SeitzSchenk depth filters can be constructed in modular form. This gives the SeitzSchenk SUPRAdisc line a wide variety of filter grades listed at the end of this publication. 2

3 SUPRADISC MODULE SYSTEM FEATURES Drainage system Filter media SUPRAdisc modules combine today s highly technical standards with 100 years of filtration experience. Specific advantages include: SeitzSchenk depth filters retain solids throughout a large surface area. This gives SeitzSchenk depth media its exceptional dirt-holding capacity. Up to 21 filter cells are stacked on the tubular core, compressed and formed into non-separable modules. All SeitzSchenk SUPRAdisc modules are interlocking, self-sealing and self-supporting. Separator tabs maintain disc spacing Molded edge seal SEITZSCHENK SUPRADISC END CAPS SeitzSchenk SUPRAdisc end cap/adapter system consists of a double O-ring bayonet locking device. This concept has proven to be extremely reliable for correct positioning of stacked modules and in bypass prevention. Upon request, SeitzSchenk SUPRAdisc modules can be supplied with flat gaskets. Adapters are also available to convert a flat gasket housing to the SeitzSchenk double O-ring adapter form. SeitzSchenk SUPRAdisc modules come in a variety of configurations and media grades to match the complete range of filtration tasks. Customers can also choose between a variety of cell stack heights and two module diameters: 12" or 16". Extremely High Dirt-Holding Capacity The synergy of our depth media with its electrokinetic (ZETA) potential functions to trap impurities using both mechanical retention and electrokinetic attraction. High Flow Rates The SeitzSchenk three-dimensional depth filter design allows flow rates far higher than found in conventional depth filters. Long Service-Life Cycles Efficient Removal of Particles, Bacteria, Colloidal Matter, and Pyrogens Easy Handling and Installation SeitzSchenk SUPRAdisc modules come ready to install. To simplify use, retightening after wetting is not necessary. Superior Performance with Difficult-to-Filter Products The SeitzSchenk module is an excellent prefilter to safeguard the life of final membrane filters. Excellent Mechanical Stability The SeitzSchenk SUPRAdisc module can be autoclaved or steam sterilized. These modules can also be hot water or chemically sanitized. Environmentally Safe The module itself can be disposed of as non-toxic waste when used to filter non-toxic fluids. 3

4 DESIGN AND EFFICIENCY SEITZSCHENK DEPTH FILTER ENTRAPMENT STRUCTURE SeitzSchenk research and development has extensively analyzed the mechanisms of depth filtration. The resulting SeitzSchenk depth filter structure consists of a maze-like filtration path. Void volume comprises 70 to 85 percent of SeitzSchenk depth filter s total volume one reason behind this media s high dirt-holding capacity. The fluid to be filtered passes relatively slowly through the innumerable channels such that the contact time with the filter is relatively long. In the process, particles, microorganisms, colloids, viruses and pyrogens become trapped within the depth filter maze. Through a special process unique to SeitzSchenk, coarse cellulose fibers are upgraded to specific degrees of fineness. The process prepares these fibers for various additives. SeitzSchenk offers cellulose filter media containing fine mixtures of diatomaceous earth, perlite, activated carbon, electrokinetic charge, PVPP, and other filter aids designed for specific filtration needs. SeitzSchenk depth filters contain innumerable, branched micro-channels that form an extremely fine three-dimensional sieve to effectively capture impurities. The individual properties of each SeitzSchenk depth filter is determined by precise raw material selection, unique upgrading techniques, an optimum ratio between void volume and electrokinetic potential, SeitzSchenk-specific formulations and reliable control of each of these process parameters. Our depth filters are formulated and constructed to prevent both fiber and contaminant release from the outlet side of the filter. FACTORS AFFECTING THE RETENTION RATES OF DEPTH FILTERS: MECHANICAL FACTORS ADSORPTIVE FACTORS PRODUCT DEPTH FILTER PRODUCT DEPTH FILTER Nature of impurities/particles Number and size of impurities/particles Viscosity Chemical composition Flow velocity Void volume of the filter medium Structure of the threedimensional screen Size of the internal surface (dirt-holding capacity) Thickness of the filter medium Nature and composition of filter components Chemical composition Charge of the impurities/particles Concentration of the impurities/particles ph value Flow velocity Polarity of the impurities/particles Temperature Structure of the threedimensional screen Number of charge carriers Nature of charge carriers Magnitude of the charge Polarity of charge carriers 4

5 ZETA POTENTIAL ELECTROKINETIC POTENTIAL A positive charge is incorporated into most SeitzSchenk depth filter media. This charge functions to remove negativelycharged particles from the filtered product. The exact charge capacity used in SeitzSchenk depth media has been designed to prevent undesirable retention of color components or active ingredients. mv /V ZETA High ZP POTENTIAL ZETA potential changes with the ph of the solution to be filtered. Streaming Current Measurement ph...mv/v IONIC EXTRACTABLES As a part of our standard quality assurance program, every batch of SeitzSchenk depth filters is analyzed for ionic extractables. The release of ionic extractables into the product to be filtered is significantly reduced after pre-rinsing. The exact reduction values are a function of the rinsing procedure, the product to be filtered and the filtration parameters (such as temperature and flow volume). 0 Positive ZETA potential Negative ZETA potential Low ZP ph Conc. of Ionic Extractables TYPICAL PROGRESSION OF AN ION EXTRACTION CURVE INCLUDING PRE-RINSE CYCLE Pre-rinse Product filtration Filtration pause Filtration after product change Time IONIC EXTRACTABLES RELEASED FROM SEITZSCHENK EK After Ni Cr Fe Ca Mg Al (ppm) (ppm) (ppm) (ppm) (ppm) (ppb) 1L/m 2 nm nm nm L/m 2 nm nm nm L/m 2 nm nm nm L/m 2 nm nm nm L/m 2 nm nm nm <10 75L/m 2 nm nm nm <10 100L/m 2 nm nm nm <10 200L/m 2 nm nm nm 0.25 nm <10 5 Pre-rinse with H 2 O circulated for 20 min. at 500 L/m 2 /hr nm = below detection limit ( 0.02 ppm) Extraction Medium: physiological saline solution

6 OVER 100 YEARS OF CUSTOMER SATISFACTION CHEMICAL COMPATIBILITY SeitzSchenk depth filters are compatible with a wide variety of inorganic and organic fluids. One key exception is the media s incompatibility with cellulose solvents. The filters have limitations with a few acids and alkalis. In particular, they are not compatible with hydrofluoric acid and some metal tetrachlorides. In these chemistries, SeitzSchenk SUPRAdur depth filters are recommended. COMPATIBILITY OF SEITZ FILTERS WITH ALKALIS AND ACIDS AT 20 AND 80 C Chemical A B X Chemical Alcohols Methanol, commercial grade Ethanol, 40% Ethanol, 96% Propanol, commercial grade Amyl alcohol, commercial grade Benzyl alcohol, commercial grade Isopropanol, commercial grade Aromatic hydrocarbons Toluene, commercial grade Xylene, commercial grade Alkalies Ammonia, 1% Sodium hydroxide, 1% Potassium hydroxide, 1% Esters Ethyl acetate, commercial grade Butyl acetate, commercial grade Ethers Ethyl ether, commercial grade Dioxane Tetrahydrofuran, commercial grade Petroleum ether, commercial grade The chemical compatibility of gasket materials can limit the applications of the SeitzSchenk SUPRAdisc modules. Our standard SeitzSchenk SUPRAdisc Modules are fitted with silicone gaskets. EPDM, Viton and FEP gasket materials are also available. ASSISTANCE WHERE AND WHEN YOU NEED IT To achieve the best possible filtration results and the highest reliability, we recommend a test run under practical conditions prior to production-scale use. Glycols Ethylene glycol, commercial grade Glycerin, commercial grade Ketones Acetone, commercial grade Cyclohexanone, commercial grade Methylethylketone, commercial grade Oils Mineral oil Silicone oil Fuel oil A B X Acids Hydrochloric acid, 2% Nitric Acid, 6% Sulfuric acid, 2% Acetic acid, 5% Citric acid, 20% Miscellaneous Aniline, commercial grade Formaldehyde, 40% Hydrogen peroxide A Recommended B Fair, testing recommended X Not recommended If you need more information or assistance, our specialists can simulate your filtration task in our applications laboratories. Fully qualified application specialists can also assist you on site to determine the best possible solution for your filtration needs. CONFORMITY TO STANDARDS The U.S. Food and Drug Administration (FDA) has registered SeitzSchenk SUPRAdisc modules under Drug Master File No SUPRAdisc modules therefore meet the environmental requirements for use in pharmaceutical production processes. Master File registration signifies adherence to strict FDA product and quality assurance standards. SeitzSchenk depth filters fulfill U.S. FDA guidelines (CFR, part g, h, j, k, and l, volume 21, chapter 1) for filter sheets manufactured with resins. SUPRAdisc modules meet the FDA requirements for food and beverage contact. SUPRAdisc modules also meet the U.S. Pharmaceutical Association s XXIII requirements for plastics, classes V and VI. Moreover, the manufacture of depth filters is also subject to constant evaluation by the German ISEGA-Forschungsund Untersuchungs-Gesellschaft mbh, Aschaffenburg. 6

7 FILTER MEDIA FOR A VARIETY OF APPLICATIONS THE RANGE OF SEITZSCHENK-SUPRADISC FILTERS SeitzSchenk offers various depth filters to meet a spectrum of applications. Challenges inherent to separations technology mean that filtration problems are rarely solved with one single type of filter. Both the physical processing conditions and the filter medium need to be considered for each individual application. Please call SeitzSchenk filtration specialists at for assistance in selecting the correct filtration system for your application. Application SeitzSchenk SUPRAdisc Filter Type Standard Range K Filtration of Distilled Spirits IR Low-Pyrogen Filters P Low-Aluminum Filters BIO Filters Containing Polyolefin Fibers SUPRAdur Filters Containing Activated Carbon AKS PVPP Stabilization Filters P30 CHARACTERISTIC RETENTION RATES OF SEITZSCHENK SUPRADISC FILTER MEDIA: µm SeitzSchenk 7 EK1 EK KS50 KS80 K100 K150 K200 K250 K300 K700 K800 K900 EKSP EK1P µm P 80P SD 100* SD 200* SD 500* SD 1200* T1000 T1500 T2100 T2600 T3500 T5500 *Retention rates prior to thermal treatment, such as steaming or hot water sanitation ** SD=SUPRAdur

8 ORDER CODES FOR SEITZSCHENK- SUPRADISC MODULES SeitzSchenk SUPRAdisc SD 300 X 100 S 216 S P SeitzSchenk SUPRAdisc SD, 330 with increased distance between the cells (valid for 12" only) SeitzSchenk SUPRAdisc SH with polyamide components 301 Corresponding Sheet K IR PVPP P SUPRAdur BIO T Biocide V Retention Range SD SDC SDS SDP SDD BIO SDT SDVB SH 0.1µm 5 µm 10 µm 25 µm 70 µm X EK 1 X EK 0 X 050 X 080 X 100 X 150 X 200 X 250 X 300 X 700 X 900 CEKS C050 C080 C100 C150 C 200 C 250 C 700 C 800 P EKS P EK 1 P 050 P 080 D 050 D 100 D 120 D 200 D 500 D 120 B 010 B 020 B 030 B 040 T 100 T 150 T 210 T 260 T 350 T 550 X 300 T 550 P 30 PVPP AKS 4 AKS 5 X AK4 X AK5 S 030 VBCE VBPE Adapters: S = Double O-Ring; C = Flat gasket adapter Filter area: all types except for SD AKS 4 and SD AKS 5 SD AKS 4 SD AKS 5* 205: 0.5 m 2 filter area / 12" 205: 5 cells / 12" 205: 5 cells / 12" 209: 1.0 m 2 filter area / 12" 209: 9 cells / 12" 209: 9 cells / 12" 216: 1.8 m 2 filter area / 12" 215: 15 cells / 12" 214: 14 cells / 12" 416: 3.7 m 2 filter area / 16" 419: 19 cells / 16" 419: 19 cells / 16" 421: 5.0 m 2 filter area / 16" *with increased adsorption capacity. Please also refer to Technical Data Sheet AKS 5. Gasket material: S = Silicone E = EPDM V = Viton F = FEP-Coated P = Perbunan (only available as flat gasket) Plastic components: P = Polypropylene; A = Polyamide (for SH only) U L REGISTERED ISO 9001 FIRM USF FILTRATION & SEPARATIONS GROUP INC. REGISTERED NO. A2041 CERTIFIED MANAGEMENT USF FILTRATION & SEPARATIONS GROUP INC. REGISTERED NO. JQA-QM0209 SEITZ FILTER-WERKE REGISTERED NO DINENISO 9001 SeitzSchenk, SUPRAdur, SUPRAdisc, and EK are registered trademarks of Pall Corporation. VELAdisc is a trademark of Pall Corporation Pall Corporation All Rights Reserved Printed In USA 5/02 1M Bulletin No. STZ B SYSTEM ISO FILTERS BSI REGISTERED FIR M USF FILTRATION & SEPARATIONS GROUP INC. REGISTERED NO. FM23897 SeitzSchenk Division 2118 Greenspring Drive Timonium, Maryland phone fax website seitz@pall.com