Seitz® ZD Series Depth Filter Sheets product photo Primary L

Seitz® ZD Series Depth Filter Sheets
For a wide range of Food and Beverage Applications

Pall´s Seitz® ZD (Zero DE) depth filter sheets Series consists of pure cellulose filter sheet media and has been developed to meet the need of the Food and Beverage Industry for filter sheet media, based on 100% pure cellulose fibers without any use of Diatomateous Earth (DE) or Perlite. The filter has been designed to give excellent filtration performance respecting product quality on a very high level.

Seitz ZD flat filter sheets consist of highly fibrillated pure cellulose fibers and are produced without the use of any inorganic material such as DE or Perlite.

Seitz ZD filter sheets are available in multiple grades suitable for microbial reduction as well as fine and clarifying filtration.



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Description

Pall´s Seitz® ZD (Zero DE) depth filter sheets Series consists of pure cellulose filter sheet media and has been developed to meet the need of the Food and Beverage Industry for filter sheet media, based on 100% pure cellulose fibers without any use of Diatomateous Earth (DE) or Perlite. The filter has been designed to give excellent filtration performance respecting product quality on a very high level.

Seitz ZD flat filter sheets consist of highly fibrillated pure cellulose fibers and are produced without the use of any inorganic material such as DE or Perlite.

Seitz ZD filter sheets are available in multiple grades suitable for microbial reduction as well as fine and clarifying filtration.

Applications
 
Grade Application


Seitz-EK ZD
Seitz-KS 80 ZD
  • Microorganism reduction and yeast removal in beverages like Wine, Beer, Juices and Liquid Food
  • Final filtration of Juices and Juice Concentrate prior to membrane filtration
  • Microorganism reduction in sugar syrups
  • Microorganism reduction in enzyme solutions

Seitz-K 100 ZD
Seitz-K 250 ZD
  • Polishing filtration of Wine and Beer
  • Haze removal in beverages
  • Polishing filtration of Olive Oil obtaining additional water removal effect
 

Conditioning

Prior to use, it is recommended to rinse the filter with clean water at ambient temperature with > 50 L/m².

Regeneration1

If the filtration process allows regeneration of the filter matrix, Seitz ZD filter sheets may be rinsed with clean water (in forward or reverse direction) to increase total throughput optimizing economic efficiency. Optimal regeneration of filter sheets installed in a plate and frame filter may be achieved with several rinses of cold water followed by hot water. An example protocol is shown below.

  1. Rinse with cold water (ambient temperature) for 5 minutes
  2. Rinse with warm water (max. 60°C/140°F) for 10 minutes

Rinsing flow rate should be 1½ of the filtration flow rate with a counter pressure of 0.5-1 bar (7.2-14.5 psi).

Materials of Construction

Sheet Media 100% Cellulose fibers

1 When rinsing in the reverse flow direction it is critical to control particulate and microbial levels of the rinsing water, so that the filtrate side of the sheet is not contaminated. Water used for reverse flow flushes should be particle-free, and if the filter will not be sterilized prior to re-use the water should be free of microorganisms. Backwashing should be in a diagonal direction from outlet to inlet in a plate and frame filter. The actual time required may vary as a function of the process conditions.

Please contact Pall for recommendations on your specific filtration process as results may vary by product, pre-filtration and filtration conditions.

Specifications

Features and Benefits

 
Features Benefits

   100% pure cellulose
   depth filter media: no
   inorganic components
  • very low impact on color and flavor
  • very high purity, low extractables, low ion release
  • 50% less water consumption for conditioning and regeneration
  • extremely good sealing character in filter presses, minimizing drip losses
  • 100% biodegradable material
   High fibrillated Cellulose
   Fiber Matrix
  • very strong filtration media
  • easy to regenerate
  • high hold up volume for long filtration cycles
  • very good particle and microbiological retention
 

Recommended Flow Rates and Differential Pressure

Seitz ZD Grade Application Flow Rate Wine and other Beverages Flow Rate Beer Maximum Differential Pressure
                  [L/m2h]
               (gal/mft2/h)
     [L/m2h]
  (gal/mft2/h)
                 [bar]
                  [psi]
Seitz EK-ZD
Seitz KS 80 ZD
Fine filtration; Filtration prior
to final membrane filter
                     525
                   (12,9)
        120
      (2,95)
                  1,5
                (21,8)
Seitz K 100 ZD
Seitz K 250 ZD
Polishing Filtration;
Particle Filtration
                    850
                  (20,9)
        150
      (3,68)
                   3
                (43,5)

Quality

SEITZ - ZD filter sheets are manufactured according to ISO 9001:2008 certified Quality Management System.

Additional Information

Food Contact Compliance

All Materials used in SEITZ - ZD filter sheets are compliant with Food Contact Regulations. The depth filter sheets meet the requirements of the recommendation XXXVI/1 within the Lebens-mittel- und Futtermittelgesetzbuch - LFGB (German Foodstuffs and Animal Feed Code), especially §§ 30 and 31 and are approved for cold filtration of food products.

Please refer to the Pall website www.pall.com/foodandbev for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use.

Available Sheet Formats

Rectangular Sheets

 
                                                                                                                                        Size
Sheet Media Type 400 mm x 400 mm
(15.8" x 15.8")
600 mm x 612 mm
(23.6" x 24.1")
1000 mm x 2010 mm OE G/K
(39.5" x 79.5")
1000 mm x 2010 mm ME G/K
(39.5" x 79.5")
                                                             SAP Ordering Code
SEITZ EK-ZD 5307570 5304404 5304412 5304406
SEITZ KS 80 ZD 5307572 5304405 5304412 5304407
SEITZ K 100 ZD 5307573 5304408 5304414 5304410
SEITZ K 250 ZD 5301106 5304409 5304415 5304411
 

OE G/K = Without Slit, pre-folded, carton box packaging (Orion Type Filter)

ME G/K = With Slit, pre-folded, carton box packaging (Niro Type Filter)

Other formats are available on request. Seitz ZD series filter sheets are also available in SUPRAdisc™ II and SUPRApak™ module configurations. Please contact Pall.