Description
Advanced 4PRO Filtration Technology
The Stauff Replacement Filter Elements for Pressure Lines represent an advanced technical solution for contamination control in hydraulic and lubrication fluids. The core of these components is the 4PRO technology made of inorganic glass fiber, featuring a three-dimensional labyrinth structure that enables highly efficient depth filtration. This configuration ensures:
- Superior dirt-holding capacity: Extends operating intervals and reduces maintenance costs.
- Energy efficiency: Thanks to lower operating differential pressure.
- Beta (ß) value stability: Consistent filtration performance with ß > 200 (according to ISO 11171), even under demanding conditions.
Design Features and Protection
For critical pressure line applications, Stauff has introduced a dedicated protection system for glass fiber elements (SE and RE series). A perforated plastic sleeve fully surrounds the pleats of the filter media. This solution provides two key technical advantages:
- Mechanical protection: Prevents damage to sensitive filter pleats during transport, storage, and replacement operations.
- Flow optimization: The sleeve evenly distributes flow volume, shielding the media from direct impact by larger particles and ensuring efficient flow performance.
Material Specifications and Performance
The range of Stauff pressure line filter elements supports collapse/burst pressures of up to 210 bar (3,045 PSI), in compliance with ISO 2941. The choice of filter media depends on the specific application:
- Inorganic Glass Fiber: Fine filtration (3–25 µm), acrylic resin binder, excellent separation of fine particles.
- Stainless Steel Fiber: Sintered fibers for depth filtration, high thermal and chemical resistance.
- Stainless Steel Mesh: Square or Dutch weave (10–1000 µm) for surface filtration with low flow resistance.
- Polyester Fiber: High resistance to differential pressure and tear-resistant structure.
Interchangeability and Compatibility
In addition to original housings, these elements are designed to be interchangeable with products from major international manufacturers, while maintaining or exceeding original quality standards. Compatibility includes brands such as Argo-Hytos, Donaldson, Eppensteiner Bosch Rexroth, Hydac, Mahle, Pall, Parker, and Internormen. Seals are available in NBR (Buna-N®), FKM (Viton®), and EPDM to suit different fluid types.
Technical summary table of the main features of the Stauff Replacement Filter Elements for Pressure Lines.
| Feature | Value |
|---|---|
| Filtration Technology | 4PRO (Inorganic Glass Fiber) |
| Max. Collapse Pressure (Pressure Filters) | Up to 210 bar / 3,045 PSI |
| Filtration Rating (Glass Fiber) | 3, 5, 10, 20, 25 µm |
| Beta Value (ß) | > 200 (according to ISO 11171) |
| Available Seal Materials | NBR (Buna-N®), FKM (Viton®), EPDM |
| Collapse Test Compliance | ISO 2941 |
| Alternative Media Materials | Polyester fiber, stainless steel fiber, stainless steel mesh, cellulose |
| External Protection Option | Perforated plastic sleeve (SE/RE series) |