Rigid porous metal tubes, cups and discs made by compacting and sintering metal powder. Select 316/316L stainless steel, bronze or Nickel 200 with a defined media grade, wall geometry and mounting connection.
Sintered metal filters and mediaShare a drawing, reference sample or application requirements to discuss the configuration.
Rows of porous metal filter tubes show closed end caps and metal end fittings. The porous wall and end connections are specified as separate regions of the assembly.
| Parameter | Specification | Notes |
|---|---|---|
| Element forms | Tube / closed-end cup / disc | Each form has its own mounting drawing |
| Fine media grade choices | 0.2 / 0.5 / 1 / 2 / 5 / 10 / 20 µm | Media designation paired with its test basis |
| Porous metal | 316 / 316L; bronze; Nickel 200 | Separate alloy branches |
| Mounting | Solid collar / thread / flange / end cap | Joint and sealing faces defined on the assembly |
| Tube geometry | OD, bore, wall and active length | Finished dimensions follow the part drawing |
| Disc geometry | Diameter, thickness and supported area | Define sealing land and support face |
| Flow direction | Outside-in or inside-out | Mark service and reverse-cleaning directions |
| Flow characterization | Flow rate and differential pressure | State fluid, temperature and exposed area |
| Acceptance records | Dimensions, joints and agreed media test | Record test conditions with the selected grade |
| Cleaning route | Backflush / chemical / ultrasonic | Method matched to alloy, deposit and assembly |
Materials: 316 / 316L stainless steel, bronze and Nickel 200
Metal powder is shaped and sintered so adjoining particles bond while interconnected voids remain between them. Fluid passes through this three-dimensional pore network. The finished element is a rigid porous body; a woven laminate uses bonded wire layers, and fiber felt uses bonded metal fibers. Each has its own structure and specification.
The fine-grade series includes 0.2, 0.5, 1, 2, 5, 10 and 20 µm media designations. Identify the selected grade together with its pore or particle-retention test, test fluid and acceptance criterion. Pore geometry, particle retention in liquids and particle retention in gases are separate specification fields. A grade number is kept with the corresponding material and wall construction.
A tube provides a cylindrical wall with defined bore, outside diameter and active length. A closed-end cup adds a porous base and one open connection. A disc seats on a defined support and sealing land. Porous length, solid joining zones and overall dimensions are identified separately so the clean and dirty sides remain separated.
316 and 316L stainless steel, bronze and Nickel 200 are separate material branches. Select the metal for the process and cleaning chemistry. Solid collars, threaded fittings, flanges and end caps connect the porous body to its housing. The drawing defines joint position, seal contact, insertion length and the flow direction through the wall.
Permeability is assessed with fluid, temperature, exposed area, wall thickness and differential pressure stated together. Viscous liquids and gases produce different operating conditions. Internal or external support follows the pressure direction and element geometry. Record clean-element flow and pressure drop at a defined operating point for comparison after service.
A cleaning route follows the retained material, alloy and joined assembly. Backflushing acts opposite the normal filtration direction; chemical or ultrasonic cleaning uses the specified compatible process. After cleaning, compare flow resistance and the agreed integrity check with the initial record. Finished-part inspection covers dimensions, porous surface, joints, seal faces and identification.
| Form | Filtering region | Mounting definition | Inspection focus |
|---|---|---|---|
| Open tube | Cylindrical porous wall | End collars and open bore | Wall, active length and roundness |
| Closed-end cup | Porous wall and base | One open connection | Base transition and joint |
| Flat disc | Supported porous face | Sealing land and backing | Thickness, flatness and active area |
| Assembled cartridge | Porous body with solid fittings | Thread, flange or end closure | Joint, seal fit and flow direction |
| Nominal outside diameter (mm) | Nominal inside diameter (mm) | Porous tube-body length (mm) | Calculated nominal wall (mm) |
|---|---|---|---|
| 6.35 | 3.175 | 152.4 | 1.5875 |
| 25.4 | 19.05 | 609.6 | 3.175 |
Each row defines one custom 316L seamless powder-sintered tube body. Dimensions are converted using 1 in = 25.4 mm; nominal wall = (outside diameter − nominal inside diameter) / 2. Tube-body length is measured before the added collars and end connections; the assembly drawing defines total length and exposed porous length. Select the media grade and filtration test basis independently for the porous material.
| 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. |
Porous tubes and cups form removable gas-filtering elements with a defined connection and test basis.
A compact porous element combines the required active area and wall thickness for the specified liquid duty.
Discs and small porous bodies fit controlled seats for filtration or distribution within a component assembly.
Include these details when discussing your requirements.
Powder metal has interconnected pores between bonded particles. Sintered mesh retains the layered geometry of woven wire cloth.
It identifies a specific porous-media designation. The order pairs it with material, construction, measurement method and the required retention criterion.
The installed drawing defines flow direction, support and joint loading. Service and reverse-cleaning loads are specified separately for the assembly.
Specify outside diameter, bore, wall thickness, porous active length, solid connection zones and overall length.
Check the porous surface and connections, then compare flow resistance and the specified integrity test with the initial acceptance record.
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