Kaifil manufactures pleated and cylindrical sintered metal-fiber felt cartridges. The bonded fiber network provides depth filtration, while pleated versions increase filtration area within a compact housing.
Sintered metal filters and mediaShare a drawing, reference sample or application requirements to discuss the configuration.
Threaded-end pleated metal filter cartridge with dark metallic media
Fine metal fibers are sintered into a porous, bonded network. A cylindrical felt wall suits compact, easy-to-clean elements; pleating packs more active area into the same housing. Pleat spacing preserves flow channels as solids accumulate, while inner cores and outer guards support the medium during filtration and reverse cleaning.
Available grades are 3, 5, 10, 15, 20, 30, 40 and 60 µm. Choose the required particle retention together with permeability, fluid viscosity and available filtration area. A finer grade improves fine-particle capture but generally raises resistance; pleated area and a suitable prefilter help manage solids loading.
Outside diameters of 30, 40, 50, 65, 80, 100, 120 and 150 mm and lengths of 100–600 mm cover a range of housings, with custom sizes also available. DOE, 222, 226 and 1 in NPT ends are combined with the required sealing diameter, insertion length and removal clearance.
Use the deposit chemistry to select backwashing, ultrasonic or chemical cleaning. Record clean pressure drop at a stated flow and temperature, then use the same conditions to evaluate recovery after cleaning. Inspection covers pleat spacing, core support, welds, end seals and specified permeability or integrity checks.
The felt cartridge uses a sintered metal-fiber network as its depth-filtering layer. Protective wire mesh faces the felt where handling and pleat contact require a guard; the perforated core supports the complete filtering wall. End caps join the media pack to the housing seal. Material records distinguish the felt alloy from guard mesh, core, end fittings and sealing compound. Flat-sheet permeability belongs to the stated sheet thickness and test conditions; the finished-cartridge pressure drop is recorded with its active area, fluid, flow and temperature.
| Component / interface | Defined function and inspection |
|---|---|
| Sintered fiber felt | Depth-filtering layer; grade and felt thickness |
| Protective wire mesh | Protects the felt surface and pleat contacts |
| Perforated core | Supports the wall in the defined flow direction |
| End-cap joint | Closes the path around the media pack |
| Cartridge test record | Active area, fluid, flow, temperature and pressure drop |
| Media grade, µm | Sheet thickness, mm | Areal mass, g/m² | Porosity, % |
|---|---|---|---|
| 3 | 0.35 | 975 | 65 |
| 5 | 0.34 | 600 | 78 |
| 7 | 0.27 | 600 | 72 |
| 10 | 0.32 | 600 | 77 |
| 15 | 0.37 | 600 | 80 |
| 20 | 0.49 | 750 | 81 |
| 25 | 0.61 | 1050 | 79 |
| 30 | 0.63 | 1050 | 79 |
| 40 | 0.66 | 1200 | 77 |
| 60 | 0.70 | 750 | 87 |
| Supply item | Order basis |
|---|---|
| Production lead time | 2–3 weeks after order and drawing confirmation. |
| Trial orders | Small trial quantities for fit and process evaluation. |
| Regular production orders | 50 pieces or US$3,000 per order. |
| Quotation basis | Material, finished dimensions, filter construction, connections and quantity. |
| Parameter | Specification | Notes |
|---|---|---|
| Construction | Pleated or cylindrical felt construction | — |
| Felt sheet thickness | 0.27–0.70 mm | Matched raw-media series; the cartridge wall also includes its specified guards, core and joints. |
| Filtration grades | 3 / 5 / 10 / 15 / 20 / 30 / 40 / 60 µm | — |
| End connections | 222 / 226 / DOE / 1 in NPT | — |
| Installed dimensions | OD / ID / pleat height | OD, ID, active length, pleat height and pleat count follow the available housing clearance and required area. |
| Outside diameter | 30 / 40 / 50 / 65 / 80 / 100 / 120 / 150 mm | — |
| Length | 100 / 200 / 300 / 400 / 500 / 600 mm | — |
| Edge / connection | DOE or sealed end cap | DOE or sealed end-cap construction to the existing housing; identify cap metallurgy, gasket profile and clean-side orientation. |
| Materials and connections | 304 / 316L / Ni · Special alloys | Select alloy for the actual fluid and cleaning chemistry. |
| Operating conditions | Designed for specified process conditions | State flow, viscosity, temperature, allowable clean and terminal differential pressure, and cleaning or backwash procedure. |
| Release checks | The inspection record identifies the material, finished dimensions, joining surfaces and sealing interfaces. Measurements follow the installed geometry and the stated test conditions. | — |
The pleated area can lower face velocity when a specified felt grade and clean pressure-drop target are used.
Recover catalyst fines and reusable solids from process liquids with a depth medium selected for the particle distribution. Removable cartridges and reverse-flow cleaning support solids collection and repeat service.
Pair the metal medium with end seals and supports qualified for the actual thermal cycle.
Include these details when discussing your requirements.
View specificationsChoose pleating when the housing diameter is limited and the duty needs more filtration area. A smooth cylinder is useful where external deposits must be removed easily or where a simple surface suits the cleaning system.
Use the same fluid, temperature, flow and installed cartridge area. Record felt grade, thickness and permeability with the result so changes in viscosity or media construction are not mistaken for fouling.
Monitor differential pressure and product quality at a stable operating point. Establish the change or cleaning trigger for the process, then compare pressure recovery and integrity after each cleaning cycle.
Give the normal and reverse differential pressures, pulse duration, temperature and cleaning fluid. The support core, outer guard, pleat restraints and end joints are configured for both loading directions.
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