Seitz® HR Series Depth Filter Sheets product photo Primary L

Seitz® HR Series Depth Filter Sheets

Seitz HR series depth filter sheets were developed to meet the production needs and requirements of the industrial enzyme industry.

From the selection and quality control of raw materials to application of the latest production technologies, HR filter sheets meet the highest quality standards.

Due to a surface modification and the presence of polyolefin fibers, these sheets are suited for the filtration of cellulosedegrading enzyme solutions. The resulting structural properties lead to improved sealing and reduced edge losses.

 
Features Benefits
Homogenous and consistent media, available in three grades
  • Suitable for a variety of applications in cellulase enzyme production
  • Proven performance
  • Reliable microbial reduction with tighter grades
Media stability due to high wet strength and media composition
  • Resistance to cellulose-degrading enzymes, resulting in improved sealing properties and reduced edge leakage
  • Easy to remove after use
  • High economic efficiency due to a long service life
A combination of surface, depth and adsorptive filtration, coupled with a positive zeta potential
  • High solids retention
  • Very good permeability
  • Excellent filtrate quality, especially due to retention of negatively charged particles
Each individual filter sheet is laser etched with the sheet grade, batch number and production date.
  • Full traceability
 


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Description
Seitz HR series depth filter sheets were developed to meet the production needs and requirements of the industrial enzyme industry.

From the selection and quality control of raw materials to application of the latest production technologies, HR filter sheets meet the highest quality standards.

Due to a surface modification and the presence of polyolefin fibers, these sheets are suited for the filtration of cellulosedegrading enzyme solutions. The resulting structural properties lead to improved sealing and reduced edge losses.

 
Features Benefits
Homogenous and consistent media, available in three grades
  • Suitable for a variety of applications in cellulase enzyme production
  • Proven performance
  • Reliable microbial reduction with tighter grades
Media stability due to high wet strength and media composition
  • Resistance to cellulose-degrading enzymes, resulting in improved sealing properties and reduced edge leakage
  • Easy to remove after use
  • High economic efficiency due to a long service life
A combination of surface, depth and adsorptive filtration, coupled with a positive zeta potential
  • High solids retention
  • Very good permeability
  • Excellent filtrate quality, especially due to retention of negatively charged particles
Each individual filter sheet is laser etched with the sheet grade, batch number and production date.
  • Full traceability
 
Applications
 
Grade Application
HR 100 Fine filtration and reduction of microorganisms in cellulase enzyme solutions
HR 2000 Cellulase enzyme clarification and fine filtration
HR 9000 Diatomaceous earth support sheet for cellulase enzyme filtration Coarse filtration of cellulase enzymes
 
Specifications

Food Contact Compliance

  • Food contact compliant filters are available. Please consult the Declarations of Compliance for applicable part numbers at the links below.
  • Please refer to the Pall website for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use.

Main Constituents

Polyolefin fibers, cellulose, diatomaceous earth (DE, Kieselguhr), perlite.

Characterization

 
Grade Mass per Unit Area g/m2 Thickness mm Ash % Water Permeability2 L/m2/min (gal/ft2/min)
HR 100 1360 3.9 46 51 (1.2)
HR 2000 1220 3.9 45 350 (8.6)
HR 9000 1200 4.8 45 1550 (38.1)
 

These figures have been determined in accordance with in-house test methods and the methods of the Technical / Analytical Work Group within the European Depth Filtration Association.

2The permeability was measured under test conditions with clean water at 20 °C (68 °F) and a Δp of 1 bar (14.5 psi).

Cellulase Resistance

Seitz HR and standard Seitz K series filter sheets were tested for their resistance to cellulase under controlled laboratory conditions. After immersion, the burst force of the samples was measured.

Filter Sheet Strength
HR sheets exhibit high wet strength when exposed to cellulase enzymes.

Sterilization and Sanitization

 
Method Temperature °C (°F) Maximum Differential Pressure bar (psi) Time3/ Cycle min
Steam 125 (257) 0.5 (7.2) 20
Hot Water 90 (194) 1 (14.5) 30
 
3The actual time required mtay vary as a funcion of the process conditions.

Filtration Guidelines4

As the filtrate quality can be impacted by the filtration flow rate, the following table provides guidelines for flux rate.

 
Application Flow Velocity L/m2/h (gal/ft2/h) Maximum Differential Pressure bar (psi)
Bacteria load reduction from cellulase enzymes 525 (12.9) 1.5 (21.8)
Cellulase enzyme fine filtration 525 (12.9) 3 (43.5)
Clarification of cellulase enzymes 850 (20.9) 3 (43.5)
Coarse filtration of cellulase enzymes 850 (20.9) 3 (43.5)
 
4Please contact Pall for recommendations on your specific filtration process as results may vary by product, pre-filtration and filtration conditions.

For additional operating guidelines, including rinsing of sheets prior to use, please refer to instructions provided by Pall.
Performance

Quality

  • Filter sheets produced in a controlled environment
  • Manufactured according to ISO 9001:2008 certified Quality Management System

Nominal Retention1

Nominal Retention
1Measured under laboratory test conditions. Removal performance of filter sheets is nominal and dependent on process conditions. There is no standardized method among manufacturers for its characterization.
Type
Sheet Filters and Modules
Use
Adsorption, Clarification, Filtration, Polishing, Prefiltration, Reduction, Removal, Retention, Separation, Stabilization
Ordering Information

Available Sheet Formats

Rectangular Sheets
  • 400 mm x 400 mm (15.8" x 15.8")
  • 600 mm x 612 mm (23.6" x 24.1")
Other formats are available on request.
Seitz HR filter sheets are also available in SUPRApak™ and SUPRAdisc™ module configurations. Please contact Pall.