Seitz® IR Series Depth Filter Sheets

• Seitz KS 50 IR 

Polishing filtration in white spirits

 

• Seitz K 100 IR

Chill filtration of white spirits

 

• Seitz K 250 IR 

Chill filtration of tannin-containing spirits or white spirits high in fatty acids

 

• Seitz K 800 IR 

Particle removal

Relative Retention Rating¹

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

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)
KS 50 IR	1350	3.7	46	93 (2.3)
K 100 IR	1400	4.3	51	187 (4.6)
K 250 IR	1250	4	46	510 (12.5)
K 800 IR	1250	4.1	46	1275 (31.4)

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).

 

The diagram below illustrates the release of calcium and magnesium from the comparable standard filter sheet K100 and K100 IR into whisky during filtration.

The following total calcium and magnesium release per m² filter sheet at a flow velocity of 500 L/m²/h (12.3 gal/ft²/h) was calculated during this filtration run:

Sheet	Calcium mg/m2 (%)	Magnesium mg/m2(%)
K 1003	667 (100)	192 (100
K 100 IR	146 (22)	68 (35)

³The K 100 is the comparable standard sheet to the K 100 IR with regard to the material composition.

 

Quality

• Filter sheets produced in a controlled environment
• Manufactured according to ISO 9001:2015 certified Quality Management System

 

The use of ion-reduced water (deionized water) is highly recommended for the reconstitution of distillates to single strength.

 

To prevent dilution upon installation, a water rinse is not recommended for sheet filters used in the spirits industry. Product circulation for 10 to 15 minutes back to the feed tank helps distribute ions extracted at the beginning of filtration to the entire batch, reducing precipitation's overall risk.

 

Filtration Guidelines⁴

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

Application	Flow Velocity L/m2/h (gph/ft2)
Particle filtration of brown spirits	500 – 700 (12.3 – 17.2)
Particle filtration white spirits	700 – 900 (17.2 – 22.1)
Chill filtration of brown spirits and white spirits high in fatty acids	250 – 400 (6.1 – 9.8)
Chill filtration of white spirits	400 – 600 (9.8 – 14.7)

⁴ Please contact Pall for recommendations on your specific filtration process as results may vary by product, pre-filtration and filtration conditions.

 

For additional operating guidelines, please refer to the instructions provided by Pall.