RPL
RPL PP meltblown cartridges
Thermally bonded fine polypropylene fibers form a graded depth structure for process-liquid particle prefiltration.
Specifications & documents ↗FILTRATION / Depth Cartridges
PP Melt-Blown Cartridges
Fibrous media for particle capture. Evaluate media gradients, loading and changeout differential pressure.
- Product type
- Depth Cartridges
- Material options
- PP
- Specifications
- Confirmed by model and process
Images and specifications refer to the indicated models. Contact us to confirm configuration and suitability.
Construction & operating principle
A PP meltblown cartridge forms a tubular porous body from molten polymer fibres, capturing particles through its depth. Some designs use a graded structure to distribute different particle sizes across the media, but similar appearance does not establish the same gradient or retention grade. Evaluation should consider downstream quality, media compaction and endpoint differential pressure together.
Typical uses
- Suspended-particle prefiltration of process water
- Contaminant control in compatible liquids
- Load sharing before finer filtration stages
Compare product approaches
| Selection factor | What to compare |
|---|---|
| Structure and rating | Graded and uniform media load differently; interpret nominal ratings alongside test efficiency. |
| Particle behaviour | Hard, gel-like and deformable particles create different fouling patterns. |
| Fit and sealing | Diameter, length and end compression must match the housing to prevent bypass. |
Selection information to confirm
| Category | Depth Cartridges |
|---|---|
| Material options | PP |
| Filtration objective | Define what to remove and what to retain |
| Rating / Dimensions | Confirm combinations against controlled model specifications |
| Flow / Temperature / Pressure | Specify normal and limiting operating conditions |
| Connections / Seals | Confirm installation interfaces and wetted materials |
| Cleaning / Validation | Confirm the service cycle and acceptance criteria |
These are selection inputs, not verified performance claims for a specific model.
Build a clear application brief
Use the worksheet to collect your operating conditions. Contact us for controlled datasheets, dimensional drawings or validation documents for a specific model.
Product selection worksheet · TXT ↓Request technical documents ↗PRODUCT SERIES
Product series & technical resources
Find a product series around your process requirements.
Keevalid VDKD / VDKR
Keevalid CMP depth filters
Graded PP micro- and nanofibre structures for large-particle control in CMP slurries, available with melt-blown or rolled media.
Specifications & documents ↗
Keevalid II VDKDH / VDKRN
Keevalid II CMP depth filters
Depth and rolled PP structures with revised fibre-layer designs for dirt loading and particle control in CMP slurry filtration.
Specifications & documents ↗Use & maintenance
- 01
Commissioning
Check seating, complete the required initial rinse and record clean pressure drop.
- 02
Operation
Avoid flow shocks and excessive differential pressure that can compact media or disturb retained particles.
- 03
Replacement
Use defined quality and pressure endpoints rather than darkness of colour alone.
Product questions
Can meltblown media remove dissolved salts?
Ordinary particle filtration is not desalination; dissolved ions need a different separation process.
Do matching nominal ratings mean equal performance?
Test methodology, media structure and efficiency may differ despite the same printed number.
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