Seitz® K Series Depth Filter Sheets
High-throughput filtering capabilities and a long service life
Looking for depth filter media with unrivaled dirt removal capacities? The Seitz K Series Depth Filter Sheets provide long-lasting and high-throughput filtration you can count on time and time again. The Seitz K Filter Sheets meet the highest quality standards you've been looking for, from the selection and quality control of raw materials to applying the latest production technologies. Available in multiple grades, the homogenous and consistent media is suitable for microbial reduction and applications requiring fine, clarifying, and coarse filtration grades.
- Includes a combination of surface, depth, and adsorptive filtration: high solids, very good permeability, excellent filtrate quality
- Each individual filter sheet is laser etched with the sheet grade, batch number and production date for full traceability
Microorganism reduction and yeast removal in wine, final filtration of juice and juice concentrate, microorganism reduction in sugar syrups and microorganism reduction in enzyme solutions
||Polishing of wine, prefiltration of juice prior to final membrane filtration and haze removal in apple juice|
||Wine clarification, particle removal from fruit juice and tea-based drinks, prefiltration of juice concentrate, olive oil polishing, enzyme solution and sweetener clarification|
Relative Retention Rating1
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.
Food Contact Compliance
- Please refer to the Pall website for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use.
Cellulose, diatomaceous earth (DE, Kieselguhr), perlite
|EK 1||1450||3.8||51||41 (1)|
|KS 50||1350||3.7||46||93 (2.3)|
|KS 80||1350||3.7||46||113 (2.8)|
|K 100||1350||3.7||46||146 (3.6)|
|K 150||1350||3.9||46||185 (4.6)|
|K 200||1350||3.9||46||213 (5.2)|
|K 250||1250||4||46||510 (12.5)|
|K 300||1250||4.2||46||785 (19.3)|
|K 700||1250||4.1||46||925 (22.8)|
|K 800||1250||4.1||46||1275 (31.4)|
|K 900||1200||4.3||46||1700 (41.8)|
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).
Seitz K series filter sheets may be rinsed with clean water (in the forward or reverse direction3) to increase throughput and optimize economic efficiency. Optimal regeneration of filter sheets installed in a plate and frame filter may be achieved with serial rinses of warm water followed by hot water. An example protocol is shown below.
- Rinse with warm water 60 °C (140 °F) for 15 minutes
- Rinse with hot water 70 – 80 °C (158 – 176 °F) for 8 – 10 minutes
The rinse flow rate should be equivalent to the filtration flow rate with a back pressure of 0.5 –1 bar (7.2 –14.5 psi).
3When rinsing in the reverse flow direction, it is critical to control particulate and microbial levels in the rinse water so that the sheet's filtrate side 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 microbes. Backwashing should be in a diagonal direction from outlet to inlet in a plate and frame filter.
Sterilization and Sanitation
|Method||Temperature °C (°F)||Maximum Differential Pressure bar (psi)||Time4/Cycle min|
|Steam||125 (257)||0.5 (7.2)||20|
|Hot Water||90 (194)||1 (14.5)||30|
4The actual time required may vary as a function of the process conditions.
For achieving optimal filtrate quality, the following flow velocities and differential pressures should not be exceeded:
L / m2/h
|EKS, EK 1, EK, KS 50, KS 80||Fine Filtration||525 (12.9)||1.5 (21.8)|
|K 100, K 150, K 200, K 250, K 300||Polishing Filtration||850 (20.9)||3 (43.5)|
|K 700, K 800, K 900||Coarse Filtration||850 (20.9)||3 (43.5)|
5Please 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.
- Seitz Filter Sheets are produced in a controlled environment
- Manufactured according to ISO 9001:2015 certified Quality Management System