OEM Factory for Rough Filter Sheets - Precoat&Support Sheets for beer and beverage – Great Wall

Specific Advantages

Robust sheet surface for increased sheet life and heavy duty use
Innovative sheet surface for improved cake release
Extremely durable and flexible
Perfect powder retention capacity and lowest drip-loss values
Available as folded or single sheets to fit any of the filter press sizes and type
Very tolerant of pressure transients during the filtration cycle
Flexible collocation with various filter aids which include, kieselguhr, perlites, activated carbon, polyvinylpolyprrolidone (PVPP) and other specialist treatment powders

Applications:

Great Wall support sheets work for the food and beverage industry and other applications like sugar filtration, basically anywhere where strength, product safety and durability are a key factor.

Main applications: Beer, food, fine/specialty chemistry, cosmetics.

Main Constituents

Great Wall S series depth filter medium is made only of high purity cellulose materials.

Relative Retention Rating

*These figures have been determined in accordance with in-house test methods.
*Effective removal performance of filter sheets is dependent on process conditions.

Regeneration/Backwashin

If the filtration process allows regeneration of the filter matrix, the filter sheets can be forward and back washed with softened water without bio burden to increase the total filtration capacity and thus optimizing economic efficiency.

Regeneration is carried out as follows:

Cold rinsing 
in the direction of filtration
Duration approximately 5 minutes
Temperature: 59 – 68 °F (15 – 20 °C)

Hot rinsing
forward or reverse direction of filtration
Duration: approximately 10 minutes
Temperature: 140 – 176 °F (60 – 80 °C)
Rinsing flow rate should be 1½ of the filtration flow rate with counter pressure of 0.5-1 bar

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