The custom G1/8″ external thread stainless steel sintered powder filter element is a precision-engineered depth filtration cartridge manufactured from fine stainless steel powder through a controlled powder metallurgy and high-temperature sintering process. This compact filter element is produced to your exact specifications, delivering micron-level filtration for demanding liquid and gas applications where high dirt-holding capacity, structural integrity, and reliable particle retention are essential.
Unlike sintered mesh filters, sintered metal powder filters are formed by pressing and sintering fine metal powders into a solid, porous structure. This process creates a three-dimensional network of irregular, tortuous pores that provides depth filtration—particles are captured not just on the surface but throughout the entire wall thickness. This unique pore architecture results in significantly higher dirt-holding capacity compared to surface-type filters, making sintered powder elements ideal for applications with high contaminant loads or where extended service intervals are desired.
Below is the specification of the custom sintered filter. If you are interested in this kind of filters, please contact us to get more details.
| Outer diameter | 25 mm |
| Height | 45 mm |
| Working temperature | -20~+120℃ |
| Filter layer | 304/316 Stainless steel |
| Filtration rate | Customized |
| Connection | G1/8″ External thread |
| Origin | Henan, China |
| Brand | Huahang Filter |
This sintered filter is suitable for precision filtration in the following industries:
This sintered filter is manufactured by Huahang Filter, leveraging expertise in powder sintering technology and metallurgy. We focus on producing reliable, application-specific metal filters. Our controlled sintering process ensures consistent pore structure and performance in every batch. We provide technical support for material selection and can offer custom versions of this platform element with different end fittings, lengths, or surface treatments to meet unique system integration needs.
Controlled Sintering for Consistent Porosity: Our sintering process is finely tuned to create a uniform porous matrix, providing a reliable and predictable absolute filtration rating (e.g., 2, 5, 10, 20, 40 microns) in this small form factor.
Precision Thread Machining: The G¾ threads are machined to exacting standards, ensuring a perfect seal with standard fittings and preventing cross-threading or leakage in critical fluid paths.
High Material Purity & Integrity: We use high-grade 304 or 316L stainless steel powder, resulting in a filter with excellent corrosion resistance and structural integrity suitable for demanding analytical or process applications.
Durability and Cleanability: Despite its small size, the monolithic sintered structure is robust and can be backflushed or ultrasonically cleaned numerous times, offering long-term service life and value.

Contact us for more details about these metal sintered filters.
Q1: What is the porosity of these filters?
A: Standard porosity ranges from 30-50% , providing an excellent balance of strength and flow. High-porosity versions up to 65% are available for applications requiring maximum flow with lower pressure drop .
Q2: Can stainless steel sintered powder filters be cleaned and reused?
A: Yes. One of the primary advantages of sintered powder filters is their reusability. They can be cleaned using:
With proper cleaning, these elements can achieve extended service life and significantly reduce long-term operating costs.
Q3: What end connection types are available for this sintered filter element?
A: We offer multiple connection options to fit most filter housings:
Q4: How do I order the correct stainless steel sintered powder filter element?
A: To place an order or request a quotation, please provide:
Dimensions – According to your specific needs
Filtration rating –According to your specific needs
Connection type – 222 O‑ring, 226 O‑ring, M20 thread, M30 thread, flat/DOE, DN15 flange, DN20 flange, or custom design (provide details)
Flow direction – Inside‑out or outside‑in (specify per your housing design)
Operating conditions – Fluid type, temperature range, pressure range, pH range, and any special exposure concerns
Quantity – Sample order (1–5 pieces) or production volume (specify quantity)