Customized sintered powder SS 316L stainless steel filter disc, 0.2 5 7 10 30 40 50 70 90 microns porous metal filter used for water and liquid filtration
HENGKO custom 316L sintered stainless steel filter discs are durable porous metal filtration components designed for water, process liquids, and OEM filtration assemblies. The featured rectangular filtration area is integrated into a square stainless steel frame, offering a compact form factor for equipment-specific installation.
Available nominal pore-grade options include 0.2, 5, 7, 10, 30, 40, 50, 70, and 90 μm, subject to design and manufacturing confirmation. Dimensions, frame geometry, thickness, and filtration area can be customized to drawings or samples.

Product Overview
Unlike disposable polymer filter media, sintered 316L stainless steel provides a rigid, reusable porous structure for suitable industrial liquid filtration duties. The metal media can be cleaned using a process compatible with the retained contaminants, filter geometry, and operating conditions. The appropriate filtration grade depends on the particle size, liquid properties, flow rate, and allowable pressure drop.
Technical Specifications
| Parameter | Available Options / Notes |
|---|---|
| Product type | Custom square / rectangular porous metal filter disc or plate |
| Filter media | Sintered stainless steel powder; alternative media designs available on request |
| Material | 316L stainless steel (other grades subject to confirmation) |
| Pore-grade options | 0.2 / 5 / 7 / 10 / 30 / 40 / 50 / 70 / 90 μm; confirm nominal rating and test method |
| Shape | Square frame with rectangular porous area; custom shapes on request |
| Dimensions / thickness | Custom to drawing; tolerances confirmed during engineering review |
| Applications | Water filtration, process-liquid particle removal, equipment protection, and OEM filtration modules |
| Operating limits | Pressure, temperature, and chemical compatibility depend on the final assembly and application |
Note: Pore grade is not automatically equivalent to absolute particle retention. Request validated filtration efficiency, flow-versus-pressure-drop data, and operating limits where required.
Key Features and Benefits
- Rigid porous metal structure: resists deformation better than many flexible filter media in suitable operating conditions.
- 316L stainless steel construction: offers corrosion resistance for many aqueous and industrial process fluids, subject to compatibility review.
- Multiple pore grades: supports application-specific particle capture and flow requirements.
- Cleanable and reusable: may reduce replacement frequency when an appropriate cleaning procedure is established.
- OEM-ready geometry: custom frame dimensions, filtration area, thickness, and installation features.
Water and Liquid Filtration Applications
Square sintered stainless steel filter plates can be engineered into compact filtration chambers, liquid-processing equipment, and custom assemblies. Common potential use cases include:
- Industrial water systems: capture suspended solids in compatible water streams and protect downstream components.
- Process-liquid filtration: remove particles from selected chemical or manufacturing liquids after media compatibility checks.
- OEM equipment protection: integrate a rigid porous element upstream of pumps, valves, sensors, or small flow passages where the hydraulic design permits.
- Reusable filtration modules: support cleanable filtration designs in equipment with suitable maintenance access.
Application engineering note: selection should consider solids loading, viscosity, flow rate, pressure differential, cleaning method, and sealing design. These components are not automatically certified for potable water, food contact, or pharmaceutical use.
How Does a Sintered Metal Filter Disc Work?
Liquid passes through interconnected pores in the sintered metal body. Particles larger than the effective flow passages may be retained on the surface or within the porous depth, while filtered liquid exits downstream. Retention performance and pressure drop depend on pore structure, thickness, flow conditions, and contaminant properties.
For a suitable filter selection, specify the required particle retention or target pore grade together with operating flow and maximum allowable differential pressure. A finer pore grade is not always the best choice: it may increase pressure drop and cleaning frequency.
OEM Customization and Manufacturing Support
HENGKO supports custom sintered metal filter component development for equipment manufacturers and industrial buyers. Send your drawing, sample, or installation dimensions for an engineering review.
- External length and width; porous window length and width
- Overall thickness, frame design, edge details, and sealing interface
- Target pore grade or particle-retention requirement
- Liquid type, operating temperature, pressure differential, and target flow
- Expected order quantity and testing or documentation requirements


Frequently Asked Questions
What is a 316L sintered stainless steel filter disc?
It is a rigid porous metal filtration element manufactured from sintered stainless steel media. It allows liquid to pass through interconnected pores while retaining particles according to its validated filtration characteristics.
Which pore size should I choose for water filtration?
Choose based on target particle retention, liquid cleanliness, flow rate, solids loading, and allowable pressure drop. Available grades may include 0.2 to 90 μm, but filtration efficiency should be confirmed for the specific design.
Can the square filter disc be made to my drawing?
Yes. HENGKO can review custom dimensions, porous window geometry, thickness, and assembly details. Manufacturing feasibility and tolerances are confirmed during quotation.
Can a sintered stainless steel filter be cleaned and reused?
Often, yes. Suitable backflushing, ultrasonic cleaning, or chemical cleaning depends on the contaminant, media, and assembly. Cleaning effectiveness should be validated before reuse.
Is 316L stainless steel suitable for all liquids?
No. Compatibility depends on liquid chemistry, concentration, temperature, and exposure conditions. Provide the process-fluid details for review.
What information is needed for a quotation?
Share a drawing or sample, required quantity, pore grade or retention target, dimensions, operating liquid, flow rate, and pressure conditions. This helps the engineering team recommend a practical design.
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Request a Custom Filter Disc Quote
Need a square 316L porous metal filter for your liquid filtration system? Tell us your required dimensions, pore grade, operating conditions, and estimated quantity. HENGKO can review your specification and discuss a custom manufacturing solution.









