For Distilled Spirits FiltrationSeitz IR series depth filter sheets were developed to meet the production needs and requirements of the distilled spirits industry.
A visually bright finished product free from visible particles is one of the main objectives of spirits filtration. Components (C12-16 fatty acid esters, terpenes, proteins or their complex compounds with metals and/or phenols) of some spirits may precipitate if calcium ion levels are too high. Magnesium may also cause precipitations in tannin containing spirits like whisky and brandy. Standard filter sheets contain small quantities of these extractable ions from the raw materials. IR Series filter sheets undergo a proprietary treatment that results in extremely low levels of extractable ions making them the ideal solution for distilled spirits applications.
|Homogenous and consistent media, available in multiple grades|| |
|A combination of surface, depth and adsorptive filtration|| |
|Proprietary treatment which results in extremely low levels of extractable ions (calcium, magnesium, iron, aluminum)|| |
|Each individual filter sheet is laser etched with the sheet grade, batch number and production date.|| |
|KS 50 IR||Polishing filtration in white spirits|
|K 100 IR||Chill filtration of white spirits|
|K 250 IR||Chill filtration of tannin containing spirits or white spirits high in fatty acids|
|K 800 IR||Particle removal|
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.
Relative Retention Rating1
|Grade||Mass per Unit
|KS 50 IR||1350||3.7||46||93 (2.3)|
|K 100 IR||1400||4.3||51||187 (4.6)|
|K 250 IR||1250||4.0||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 retention rate and throughput.
- Filter sheets produced in a controlled environment
- Manufactured according to ISO 9001:2008 certified Quality Management System
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 to distribute ions extracted at the beginning of filtration to the entire batch reducing the overall risk of precipitation.
Filtration Guidelines4As 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 (gph/ft²)|
|Particle filtration of brown spirits||500 – 700 (12.3 – 17.2 gph/ft2)|
|Particle filtration white spirits||700 – 900 (17.2 – 22.1 gph/ft2)|
|Chill filtration of brown spirits and white spirits high in fatty acids||250 – 400 (6.1 – 9.8 gph/ft2)|
|Chill filtration of white spirits||400 – 600 (9.8 – 14.7 gph/ft2)|
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 instructions provided by Pall.
Available Sheet FormatsRectangular Sheets
- 400 mm x 400 mm (15.8 in. x 15.8 in.)
- 600 mm x 612 mm (23.6 in. x 24.1 in.)
Seitz IR series depth filter sheets are also available in SUPRAdisc™ II module configurations. Please contact Pall.