[Flo-Products Company Logo]
nav buttons
Process Filter Systems and Elements

is available from this manufacturer:

 Zander Filter Systems, Inc.

Process Filter Systems

bullet

The Process Housing Series "S"

In addition to their size, the fact that micro-organisms as "living organisms" are capable of multiplying very rapidly given the right conditions makes special demands on the sterile filter element as well as the sterile filter housing.
 
Therefore, the new ZANDER filter housing range is designed for the most critical applications. 304 (optional 316L high-quality stainless steel, highly-polished surfaces and the elimination of edges and corners offer a high degree of biological safety when sterilizing air and other compressed gases.
 
Special attention has been paid to the location of the element. Unlike traditional plug-in adapters with a single internal 'O' ring or two external 'O' rings, a special "Click-Lock" (Code 7) system was developed for the new series S housings.
 
Two external 'O' rings together with a bayonet insure that the element is safely installed. Thus the risk of bypass and bacteria formation around the 'O' ring is greatly minimized.
 
The design of the new housing series guides the air/gas flow into the filter element without any turbulence. The result is minimal pressure drop across the filter housing and filter elements and therefore a considerable reduction of operating cost is realized.
 
With the pleated filter series HB and the steam filter Series D and HCD, nearly all requirements for modern, safe and cost-effective filtration can be met.
 

TECHNICAL DATA


Features
  • Code 7 "Click-Lock" system with double 'O' ring and bayonet for positively locating the element.
  • The 'O' ring eliminates possibility of organism bypass therefore insuring filtration integrity.
  • Highly-polished housing surfaces without edges or corners for greater biological safety (Ra .8).
  • Steam jacketed housings available.
  • High-quality 304 (optional 316L) stainless steel construction means no fouling or corrosion and long service l념xź��li>
  • Plenum chamber design improves drainage from the filter housing when used to separate liquids.
  • Vents tapped FNPT.
  • May be used with depth media sterile filter Series HB and steam filter Series D and HCD. Universally acceptable for all applications.
  • Max. operating pressure 232 psig (higher operating pressure housings available upon request) / Max. operating temp. 392°F.
  • Aseptic EPDM housing seal. Other elastomers available.
  • Available as connection type: BSP, NPT, Sanitary Clamp, Milk Pipe, Welded Edge, Flange, SMS, Socket Weld.
Series S Specifications
 
bullet

Filtration: Depth Media Filters


Selecting the correct filter type and construction (pleated or wrapped) is of crucial importance. Not every type of filter is suitable for every application. The wide product range of ZANDER guarantees the use of the "correct" filter in any given sterile process.
 
The expression dept media or media filter not only relates to the "relative depth" or "thickness" of the filter material but also to the method with which micro-organisms are removed. Irregularly arranged fibers with a diameter of 0.5 to 100 micron are formed into several layers. Filtration takes place within the depth of the filter media. The gaps form winding channels through which the air or gas must pass. All micro-organisms are completely separated by the element.
 
Depth media filters feature particularly high flow rates. However, the integrity of a depth media filter is highly affected by insufficiently filtered condensate in the process air or after steam sterilization has take place. If the filter medium is wet by this condensate, the filter can no longer provide a sterile air or gas product and the element may tear quite easily due to increased differential pressure.
 
Due to this ever-present threat of condensate in compressed air or from wet steam sterilization cycles, only a hydrophobic depth filter is sufficient to guarantee the integrity of the compressed air coming into contact with food and beverage products.
The ZANDER filter range for air sterilization includes special depth media filters manufactured from hydrophobic PTFE-impregnated microfibre web (see filter Series HB) or hydrophobic Nomex® wrapped borosilicate glass fibers (see Series ST-R).
 
bullet

Validate Series Filters

  bullet

VALIDATE SERIES HB : The Filtration Revolution


Demands for the sterilization of compressed air and gas in the food industry, dairies and breweries are continuously increasing. Complete retention of micro-organisms such as bacteria, viruses and bacteriophages, the largest possible filter area, low differential pressure and high cost effectiveness are standard requirements that a filter must meet.
 
As a solution for this application range, ZANDER specially developed the SERIES HB filter element with an absolute retention rate of 0.01 micron in gas and compressed air. With the help of the pleated depth media with a void volume of 95% (PTFE: 85%; PVDF: 67%) the flow rate may be increased several times while maintaining a low differential pressure.
 
ZANDER's unique pleated SERIES HB has many advantages. The high particle retention capacity increases the life of the SERIES HB filter element while at the same time reducing operating costs. Heat-stabilized polypropylene together with an internal stainless steel core result in high mechanical stability and the hydrophobic PTFE-impregnated filter medium protects against the wetting of the filter medium with condensate or wet steam. SERIES HB filter elements are revolutionizing sterile air filtration. They offer the user the most cost-efficient and reliable filtration.

FEATURES

  • Rugged pleated element construction with internal stainless steel core.
  • PTFE-impregnated hydrophobic microfiber with a void volume of 95% as recommended for steam sterilization.
  • Absolute retention rate at 0.01 micron in compressed air and gases.
  • Larger internal diameter and pleated medium for markedly improved flow characteristics.
  • Validated to aerosol bacteria challenge test.
  • Can be integrity tested with FILTEGRITY
  • Heat-welded construction.
  • "Code 7" click-lock elements available to replace competitive elements directly.
  • 1.3 psid (@ rated nominal flows).
  • Validated Vent Filters available (Series VE).
MAX. RECOMMENDED OPERATING TEMPERATURE (HOT AIR)
176°F continuous
 
STEAM STERILIZATION (see steam filters)
Maximum 287°F at 40 psig for 15 minutes
 
BIOLOGICAL SAFETY
All construction materials meet the safety requirements of USP Plastics Class VI and BS 5736
 
VALIDATION
SERIES HB filter elements are validated by the Aerosol Bacteria Challenge Test. Titre reductions of >1012 were established. Documentation available upon request.
Series HB Specifications
 
  bullet

VALIDATE SERIES ST-R : Improvement on a Standard


Three layers of the microfiber filter medium between Nomex® supporting material prevent the penetration of micro-organisms and insure added filter stability. Because Nomex® is a hydrophobic material, filtration integrity is enhanced even after a steam sterilization cycle.
 
Between the stainless steel support cylinders, the filter layer is secured with epoxy resin to the stainless steel end caps. Utilizing epoxy potting compound in lieu of silicone results in a SERIES ST-R filter element of exceptional stability, highest possible efficiency and longer service life for total safety under critical process conditions.
 
SERIES ST-R filter elements are particularly suited to high temperature applications. ST-R elements meet the requirements for sterile compressed air/gas and "Bio-Burden Reduction" in dairies, breweries and other food industries, as well as particle-free systems in high-tech manufacturing.
 
Filter elements of the ST-R SERIES are available for existing ZANDER filter housings and also as replacement filter elements for housings produced by other manufacturers.

FEATURES

  • Stainless steel construction
  • 3 layers of microfibre media between hydrophobic Nomex® supporting material
  • Bonding of end caps with epoxy resin
  • Large void volume of 95%
  • Can be repeatedly steam sterilized
  • High operating temperatures
  • High particle retention capacity
  • Can be integrity tested with FILTEGRITY
  • Double "O" ring plug-in connection
  • Available as VALIDATED replacements for competitive housings to upgrade existing filters.
MAX. RECOMMENDED OPERATING TEMPERATURE (HOT AIR)
392°F intermittently
338°F continuously
 
STEAM STERILIZATION
Can be sterilized in-place with purified, saturated steam up to 100 times at 250°F at 16 psig for 30 minutes.
Series ST-R Specifications
 
bullet

Steam Filters

  bullet

SERIES D and DS : Clean Steam


In many areas of the food and pharmaceutical industries, vessels, piping and filter systems are sterilized by steam. If not properly filtered, the steam required to sterilize these systems may contain a considerable amount of rust, particulate or other pipe-scale. The resulting contaminated steam may cause serious faults in the system. If the steam is contaminated, the life of valves, filters and other ancillary equipment is shortened.
 
ZANDER SERIES D and DS steam filters prevent the systems from being contaminated and thus increase the lives of adjoining equipment. ZANDER SERIES D and DS steam filters consist of porously sintered stainless steel that ensures the effective retention of particles. The filter elements show excellent chemical resistance and mechanical stability due to their special design. Using ZANDER SERIES D and DS steam filter can considerably reduce the post-filtration costs of your system.

TECHNICAL DATA


Features
Both:
  • Porous sintered stainless steel construction
  • High flow rate with low differential pressure
  • High mechanical stability
  • High temperature range
  • Separation rates of 25 and 5 micron available
SERIES D:
  • Seamless construction
  • Welded end caps
  • Code 7 "Click-Lock" connection with double "O" ring
SERIES DS:
  • Seamless construction
  • Welded end caps
  • Double "O" ring plug-in connection
  • Replacement elements for other manufacturers' housings
Series D and DS Specifications
 
  bullet

SERIES HCD : State of the Art Culinary Steam Filters


ZANDER is proud to introduce the new Series HCD High-Capacity Culinary Steam Filters. The new range features a pleated Stainless Steel mesh element allowing higher flows, excellent particle retention and longer service life at the lowest ΔP. The new HCD element also features the double "O" ring sealed Code 7 "Click-Lock" connection for positive location of the filter element and the end caps are welded making the HCD ideal for continuous duty in demanding high temperature applications.
 
Although the 3-A standard only calls for a 2 micron filter rating at 95% efficiency (Section D2.2), the ZANDER element is capable of trapping particles to 1 micron at 99% efficiency. Superior performance means longer service life for sensitive downstream equipment and products.
 
Another exciting development is the new ZANDER DG housing for large capacity steam systems. The DG19HCD and DG20HCD Flanged Filter housings feature 316L construction and 3" flange and 4" ANSI flange connections, respectively. Most importantly, the opening at the inlet of the filter element is the same diameter as the inlet/outlet of the housing giving ZANDER the ability to provide steam flows of over 10,000 lbs./hour through a single element. ZANDER provides the highest performance and the longest service life at an economical initial cost.
 

TECHNICAL DATA


  • Exceeds 3-A Standard
  • Pleated stainless steel element
  • High flow rates with lowest ΔP
  • High temperature range
  • Welded end caps with double "O" ring sealed "Click-Lock" connections (Code 7)
  • Particle retention to 1 micron at 99% efficiency (Exceeds 3-A standards)
  • Single element configuration for flows to over 10,000 lbs./hour
  • Complete culinary steam packages available
  • Easily cleaned with HCL for reuse
Series HCD Specifications
 
bullet

FILTEGRITY

After a sterile filter is produced the manufacturer will subject it to a series of quality tests to insure that a high-quality product leaves the factory.
Based on experience and tests under laboratory conditions the manufacturer can provide the physical limits (e.g. max. number of possible sterilization cycles, etc.) of each filter element. Upon request the manufacturer will supply these data as validation documents. Each sterile process and each sterile application makes different demands on a sterile filter element and these cannot all be considered under laboratory conditions. It is therefore extremely difficult to state the serviceable life on any filter. It would be preferable if every user was able to individually test the integrity of their sterile filters in order to insure controlled filter replacement.
 
In order to allow fast and reliable checking of a sterile gas filter in practice, ZANDER offers the FILTEGRITY test system.
 
Unlike the liquid-based and DOP test methods this system does not require any wetting or contamination of the filter media. The filter element is directly subjected to test particles (aerosols) in the air flow. Whereas a liquid-based test can take up to 3 hours, FILTEGRITY tests a filter element in less than one minute (test time depends on filter size). FILTEGRITY is simple and fast to use and does not require any special knowledge or skills.
FILTEGRITY can reliably and safely assess the integrity of a sterile filter. Its extreme sensitivity permits the identification of filter defects that cannot be detected by liquid-based integrity tests. The findings were published in the Pharmaceutical Technology Europe magazine in April 1995 and can be obtained from ZANDER upon request.

FEATURES

  • No wetting/drying of filter elements required
  • Test time of only a few seconds
  • No organic solvents required
  • Testing of filter under absolute worst case conditions
  • Testing of depth media and membrane filters
  • In-line testing is possible
  • No further accessories required
  • Validated test performed in-house or on-site
  • Most accurate test since larger elements are given larger loads of aerosols (corresponds with bacteria challenge)
FILTEGRITY Specifications

 
[ home Flo-Products Home ]   [ back 1 level Pneumatic Products ]
 
Access for non-Javascript enabled browsers
 
Process Filter Housings
Series S Process Housing
Validate Series Filters
Series HB Validate Filters
Series ST-R Validate Filters
Steam Filters
Series D / DS Steam Filters
Series HCD Culinary Steam Filters
Filter Integrity Testing
FILTEGRITY Test Equipment
If you are located in Missouri, Kansas, Nebraska, or Illinois, you may contact us at the
following telephone and fax numbers with your requests or questions:
St. Louis telephone 314.428.4000 fax 314.428.4097
Kansas City telephone 913.829.5900 fax 913.829.0815
 
For ALL OTHER AREAS Please use the Info Request form for specific product information, pricing or other information.
Please include company name, contact name, address, phone number and fax number to ensure a timely response.
 
Send e-mail to webmaster@flo-products.com with questions or comments about this web site.
Copyright © 2004 Flo-Products Company
Last modified: