The 30SNV cellulose depth filter cartridge is a high-performance depth filter element manufactured from premium cellulose media. This cartridge is specifically engineered for the filtration of transformer oils, lubricating oils, and other industrial fluids where high filtration efficiency and reliable particulate removal are critical.
Engineered with a gradient density pore structure, the 30SNV captures contaminants throughout the entire depth of the filter media — not just on the surface. The cellulose fibers form a dense three-dimensional matrix that progressively traps particles from large to fine as the fluid flows through the media. This depth filtration mechanism delivers high dirt-holding capacity, extended service life, and consistent filtration performance that surface-type filters cannot match.
| Type | Depth filter cartridge |
| Part number | 30SNV |
| Filter material | Cellulose |
| Height | 300 mm |
| Absolute filtration rating | ＜3μm |
| Standard pressure drop | ＜ 0.1 bar |
This is the standard specification of the 30SNV Cellulose Depth Filter Cartridge. If you have any questions, please contact us for more details.
The 30SNV Cellulose Depth Filter Cartridge is widely used across multiple demanding applications:
Power Generation: Transformer oil filtration, on-load tap changer (OLTC) oil filtration, high-voltage equipment oil purification
Industrial Manufacturing: Lubricating oil filtration, hydraulic oil purification
Heavy Equipment: Mining machinery, excavators, and heavy vehicle oil filtration
Paper & Pulp Industry: Lubrication system filtration
Dielectric Oil Systems: Removal of carbon particles and moisture to increase dielectric strength
Network Load Tap Changers: Normal maintenance filtration during tap changer servicing
Over more than two decades, Huahang Filter has continuously expanded its technical capabilities and product portfolio. Huahang Filter serves clients across more than 100 countries worldwide, with products deployed in petrochemical, pharmaceutical, power generation, and aerospace applications globally.
20+ years of filtration expertise – Since 2003, Huahang has specialized in sintered metal and industrial filtration, delivering reliable, high-performance solutions worldwide.
National high-tech enterprise – Recognized with 25 national patents and “Specialized & Sophisticated” SME status, our R&D team continuously develops advanced filtration technologies.
26,000m² in-house manufacturing – Vertical integration ensures strict quality control, rapid response, and flexible customization at every production stage.
ISO 9001, CE & SGS certified – Multi-level quality inspection (IQC, IPQC, FQC, OQC) guarantees consistent performance and reliability in every filter element.
Full customization capabilities – We produce filters to your drawings, samples, or specifications, with engineering support for custom dimensions, media, and connections.
Q1: Can the 30SNV filter remove water from oil?
A1: Yes. Unlike ordinary pleated oil filters, the cellulose depth media can absorb free water while trapping solid particles throughout multiple filter layers, improving overall oil cleanliness.
Q2: Is the 30SNV a surface filter or a depth filter?
A2: The 30SNV is a depth filter. Oil flows radially from the outside toward the center through multiple cellulose layers, allowing contaminants to be captured throughout the filter media rather than only on the surface.
Q3: What are the advantages of a cellulose depth filter over a pleated filter?
A3: Key advantages include:
