Depth Filter Sheets
Request a QuoteDescription
Membrane Solutions delivers high-performance depth filter sheets optimized for critical parameters: filtration efficiency, particle capacity, flow rate, and pressure drop. Our DE Series and PC Series are available in multiple grades suitable for microbial reduction filtration as well as fine and clarifying filtration. The DE Series depth filter sheets are constructed of a mixture of cellulosic fibers and filter-aids (e.g. diatomaceous earth and perlites), forming an open 3D structure for superior particle retention. The PC Series depth filter sheets are made of pure cellulose fibers (mineral-free), ensuring chemical compatibility and low extractables.
Features and Benefits
| Series | Features | Benefits |
| PC Series | Pure cellulose media:mineral-free | ●High-purity,low ash content,low ion release ●Up to 50%less water forflushing ●Easy to regenerate |
| DE Series | Combines surface,adsorptive and depth filtration mechanisms |
●Ideal forF&B applications ●High dirt-holding capacity ●Excellent permeability |
Applications
| Series | Grade | Application | |
| PC Series | PC03,PC06,PC08 | ●Wine and Beer clarification | |
| ●Particle removal in fruit juice&tea-based beverages | |||
| DE Series | STKP-Y-4,STKP-Y-5 | ●Clarifying of Wine and Beer | |
| ●Removes coarse particulates prior to polishing | |||
| ●Prefiltration Systems forJuice Concentrate | |||
| STKP-Y-6, STKP-Y-7 | ●Polishing of Wine and Beer | ||
| ●Prefiltration of product prior to final membrane filtration | |||
| STKP-Y-8,STKP-Y-9 | ●Prefiltration before final sterilization | ||
| ●Microbial reduction | |||
Filter Media Specifications
| Series | Code | Grade | Retention Rating[1](μm) |
Mass Per Unit Area (g/m²) |
Thickness (mm) |
Typical Water in Permeability [2](L/min/m²) |
Ash Content (%) |
Recommended Application |
| PC Series | Y03 | PC03 | 25-50 | 950-1000 | 3.6-4.0 | 829 (818-847) |
<1 | Coarse Clarification |
| Y08 | PC06 | 20-40 | 1050-1100 | 3.6-4.0 | 760 (729-787) |
<1 | ||
| Y06 | PC08 | 10-30 | 1100-1200 | 3.6-4.0 | 407 (360-448) |
<1 | ||
| DE Series | Y18 | STKP-Y-4 | 5-12 | 1400 | 3.6-4.0 | 235 | 52.5 | |
| Y28 | STKP-Y-5 | 3-7 | 1300 | 3.6-4.0 | 197 | 51.8 | ||
| Y38 | STKP-Y-6 | 1-5 | 1450 | 3.6-4.0 | 90 | 44.2 | Medium Clarification |
|
| Y48 | STKP-Y-7 | 0.6-1.0 | 1300 | 3.6-4.0 | 76 | 48.3 | ||
| Y58 | STKP-Y-8 | 0.2-0.5 | 1450 | 3.6-4.0 | 54 | 48.0 | Fine Clarification |
|
| Y68 | STKP-Y-9 | 0.1-0.2 | 1550 | 3.6-4.0 | 48 | 49.2 |
[1] Effective removal performance of filter sheets is dependent on process conditions
[2] The permeability was measured under test conditions with deioized water at Δp of 1 bar (14.5 psi). And, the water value is not related in any way to the actual filtration flow rate
Installation Guide
>>Handling Precautions
- Depth filter sheets should be carefully handled into the plate and frame filter during installation to maintain structural integrity
- Avoid banging, bending, and rubbing the sheets
- Discard sheets with visible damage prior to use
>>Direction Control
- Rough Surface (Unfiltered Side): Faces the feed stream inlet
- Smooth Surface (Filtrate Side): Contacts the polished filtrate plate
>>Critical Alignment
- Ensure smooth filtrate side aligns with clean plate grooves
- Verify directional arrows on sheet edge match flow indicators
Sterilization and Sanitization(Optional)
| Type | Temperature℃(°F) | Maximum Differential Pressure Psi (bar) |
Duration(min) |
| Autoclave | 121(249.8) | 7.2(0.5) | 20 |
| Hot Water | 90(194) | 14.5(1.0) | 30 |
Operating Conditions
>>Differential Pressure
Stop the filtration process when the differential pressure reaches 58 psi (400 kPa, 4 bar). For microbial separation applications, ensure the differential pressure should not be exceeded 29psi (200 kPa, 2 bar) to maintain safety.
>>Filter Preparation
In order to increase throughput and to optimize economic efficiency, Membrane Solutions recommends pre-rinsing the closed filter with at least 25 L/m² (PC Series) or 50 L/m² (DE Series) clean water before initial use, unless this step was already performed after sterilization.
Available Sheet Formats
Rectangular Sheets （Special formats are available on request）
- 200 mm x 200 mm (7.87" x 7.87"）
- 400 mm x 400 mm (15.8" x 15.8")
- 600 mm x 612 mm (23.6" x 24.1")
Ordering Information
| Product Type | Code | Shape* | Size* | Series |
| CRBD | Y18 | R | 200200 | PC |
| CRBD | Filter Media Code from Specifications Table |
R=Rectangular | 200 mm x200 mm 400 mmx400 mm 600 mm x612 mm |
PC=PC Series DE=DE Series |
*Special formats are available on request, and please contact Membrane Solutions
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