Sintered porous metal filter disc 20 micron for Gas purification and analysis
Reliable Porous Metal Filtration for Gas Systems
A sintered stainless steel filter disc provides a mechanically stable, permeable barrier that captures particles while allowing gas to pass through the porous structure.
Consistent Porous Structure
Controlled sintered-metal media supports repeatable gas flow and particle retention when properly specified.
Robust Metal Construction
Resists deformation better than many soft disposable media under compatible operating conditions.
Cleanable & Reusable
Selected grades can be cleaned and reused, subject to contamination type, cleaning method, and validation.
Gas Sampling Protection
Helps reduce particulate ingress into downstream regulators, valves, and analytical equipment.
Custom Integration
Disc diameter, thickness, alloy, and mounting design can be evaluated for OEM assemblies.
Application-Specific Selection
Material, pressure drop, temperature, and filtration rating can be matched to your process requirements.
20 Micron Filter Disc — Specification Guide
Use the following information as a starting point for engineering discussions. Final dimensions, material grade, and performance must be confirmed in the quotation or approved drawing.
| Product Type | Sintered porous metal filter disc |
|---|---|
| Filtration Grade | 20 μm (rating basis and tolerance to be confirmed) |
| Material | Stainless steel; 316L available subject to specification confirmation |
| Disc Diameter | Customizable to drawing or housing dimensions |
| Disc Thickness | Customizable; selected based on strength and flow requirements |
| Operating Media | Compatible process gases; confirm gas composition and contamination |
| Operating Temperature | Application-dependent; verify alloy, seals, and housing limits |
| Pressure Differential | Determined by disc geometry, support design, and test conditions |
| Mounting Options | Press-fit, retained, welded, or integrated into a custom assembly, as applicable |
| Customization | Diameter, thickness, pore grade, alloy, and assembly configuration |
* “20 μm” does not, by itself, establish absolute particle retention efficiency, gas purity level, or a validated micron cut-off. Request test data if your application has a specified removal efficiency or critical purity requirement.
Where Sintered Metal Filter Discs Are Used
Suitable for evaluation in gas lines and analytical systems where particulate protection, metal construction, and serviceability are important.
Gas Sampling Systems
Particulate prefiltration upstream of sampling valves, regulators, and measurement instruments.
Gas Analysis Instruments
Protective filtration in compatible analyzer sample-conditioning assemblies.
Industrial Gas Distribution
Point-of-use particulate filtration for process-gas handling and pneumatic equipment.
Chemical Processing
Gas/solid separation in appropriately engineered process filtration equipment.
Laboratory Test Equipment
Replaceable porous elements in custom laboratory gas-flow and filtration fixtures.
OEM Gas Components
Integrated porous discs for custom fittings, filter cartridges, and instrument subassemblies.
For ultra-high-purity semiconductor gases or other critical purity applications, filtration performance and material cleanliness must be validated separately; a nominal 20 μm disc should not be presented as a nanometer-scale purifier.
How the Porous Filter Disc Works
Process gas enters a compatible filter housing and passes through the sintered metal disc. Particles larger than the effective retention characteristics of the selected media are captured, while filtered gas continues downstream.
- Position the disc in a properly supported seat or retaining assembly.
- Provide suitable sealing to prevent bypass around the disc.
- Verify pressure drop at the actual gas flow, pressure, and temperature.
- Inspect or clean the element based on measured differential pressure and process conditions.
Need a Custom Sintered Metal Filter Disc?
HENGKO supports custom porous metal components for manufacturers of gas analysis instruments, sampling systems, and industrial filtration equipment.
Dimensions
Specify outside diameter, thickness, tolerances, and edge design.
Filtration Media
Discuss pore grade, stainless steel alloy, and target flow performance.
Assembly Design
Share your housing drawing, installation method, and sealing requirements.
For a faster quotation, please provide: quantity, technical drawing or dimensions, gas type, operating pressure/temperature, target flow rate, and required filtration performance.
How to Select the Right Filter Disc
1. Define Filtration Target
Identify particle size distribution, desired removal efficiency, and whether the micron rating is nominal or absolute.
2. Confirm Process Conditions
Provide gas composition, flow rate, pressure, temperature, and corrosion considerations.
3. Check Mechanical Fit
Confirm diameter, thickness, sealing, support, and available installation space.
FAQs About Sintered Metal Filter Discs
What does a 20 micron sintered metal filter disc mean?
It identifies the specified filtration or pore grade. Actual particle capture depends on the manufacturer's rating method, media structure, and operating conditions. Ask for a validated efficiency curve if a precise cut-off is required.
Can the filter disc be cleaned and reused?
Many sintered stainless steel elements are reusable after suitable cleaning. The method depends on the contaminants and material; critical applications may require post-cleaning inspection and performance testing.
Can I order a custom diameter and thickness?
Yes. Submit your drawing or target dimensions and tolerances for a manufacturability review and quotation.
Is this filter suitable for gas analyzers?
It may be suitable for particulate protection in gas sampling and analyzer systems. Confirm the required gas compatibility, pressure drop, cleanliness, and analytical performance before selection.
Can it remove moisture or gas molecules?
No. A standard 20 μm particulate filter disc is not a desiccant or molecular purifier. Moisture and molecular contaminants require appropriately designed treatment media or technologies.
Find the Right Porous Metal Disc for Your Equipment
Share your drawing or filtration requirements. Our team can discuss material options, sizing, and manufacturing feasibility.
