RPL
RPL wound depth cartridges
Yarn wound around a support core forms a depth structure, with PP, cotton or glass-fiber media selected for the fluid.
Specifications & documents ↗FILTRATION / Depth Cartridges
String-Wound Cartridges
A wound-yarn filtration structure. Confirm yarn material, core construction and seals as a complete assembly.
- Product type
- Depth Cartridges
- Material options
- Yarn / core dependent
- 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 string-wound cartridge wraps yarn around a perforated core to create intersecting passages with depth-capture behaviour. Yarn, winding density and core material jointly influence service limits and retention. String winding should be distinguished from other wrapped constructions, such as thermally bonded bicomponent media; the actual yarn-and-core design needs to be identified.
Typical uses
- Prefiltration of suspended matter in process water
- Coarse-particle control in compatible process fluids
- Routine protection of downstream equipment
Compare product approaches
| Selection factor | What to compare |
|---|---|
| Yarn and core | PP or other yarns with polymer or metal cores have different chemical and thermal limits. |
| Winding pattern | Density and passage distribution influence resistance and capture, interpreted with the rating method. |
| End sealing | Length, end-face condition and compression determine whether liquid can bypass the media. |
Selection information to confirm
| Category | Depth Cartridges |
|---|---|
| Material options | Yarn / core dependent |
| 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.
Use & maintenance
- 01
Installation
Check the core and seat the ends correctly rather than relying on outer-diameter fit.
- 02
Operation
Track pressure and avoid sudden flow changes or excessive compaction.
- 03
Maintenance
Inspect damaged yarn and deformation at changeout; a clean-looking outer surface does not prove restored performance.
Product questions
Are all wound cartridges made from PP yarn?
No. Both yarn and core need identification rather than inference from appearance.
Does washing restore the original rating?
Internal contamination and altered passage structure may remain, so rinsing does not establish equivalent retention.
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