Sintered Porous Metals & Metal Fiber Felts

Main Product Types

Product Type	Key Features	Common Applications
Sintered Porous Metal Plates	Stable structure, high strength, and suitable for machining, welding, or equipment integration.	Filtration, fluid distribution, support plates, and internal equipment components.
Sintered Porous Metal Discs	Compact formats for small filter assemblies and laboratory systems.	Laboratory filtration, sampling, gas-liquid separation, and compact equipment fixtures.
Sintered Porous Metal Tubes & Cylinders	Large filtration area and convenient integration into housings or pipelines.	Liquid filtration, gas filtration, venting, sparging, and fluid distribution.
Sintered Porous Metal Cups & Caps	Compact porous components for end filtration, protection, and small assemblies.	Pumps, valves, sensors, and compact filtration devices.
Porous Metal Filter Cartridges	Tubular, cylindrical, or assembled structures for continuous process filtration.	Industrial liquid filtration, gas purification, and process protection.
Metal Fiber Felts	Fibrous metal media with good permeability and dirt-holding capacity.	Fine filtration, high-flow filtration, and exhaust treatment.
Laminated & Sintered Metal Fiber Media	Multi-layer structures designed to balance filtration, support, and flow performance.	High-efficiency filtration, composite filter elements, and process filtration modules.
Pleated Metal Fiber Media	Expanded effective filtration area for compact cartridge configurations.	Continuous filtration and high-flow process systems.
Porous Metal Spargers & Diffusers	Uniform pore structure for gas dispersion and fluid diffusion.	Aeration, gas-liquid mixing, fermentation, and chemical reaction systems.

Common Metal Materials

Different metal materials are suitable for different media, temperatures, pressures, and corrosion conditions. Material selection should consider corrosion resistance, mechanical strength, thermal stability, conductivity, cleaning method, and expected service life.

• Stainless Steel Porous Metal: A widely used option for general industrial filtration, laboratory filtration, liquid treatment, gas purification, and cleanable filtration systems.
• Titanium Porous Metal: Suitable for applications requiring strong corrosion resistance, lightweight construction, or performance in selected chemical environments.
• Nickel and Nickel Alloy Porous Metal: Used in selected high-temperature, chemically demanding, or specialized process environments.
• Copper and Bronze Porous Materials: Commonly used in pneumatic components, lubrication, sound attenuation, flow control, and selected liquid-filtration systems.
• FeCrAl Metal Fiber Felt: Often selected for high-temperature oxidation environments and selected exhaust or thermal-treatment systems.
• Other Specialty Alloys: Can be selected according to the working medium, temperature, pressure, and corrosion requirements.

Choose by Porous Structure

Sintered powder porous metals generally provide high rigidity, dimensional stability, and self-supporting strength. They are suitable for fixed-shape components such as filter plates, discs, tubes, cups, cartridges, and diffuser elements.

Metal fiber felts are made from fine metallic fibers and are often selected for higher permeability, greater dirt-holding capacity, and adaptable flow performance. They can be processed into sheets, rolls, discs, laminated media, pleated cartridges, and composite filtration structures.

• For fixed geometry and higher mechanical strength, sintered porous metal is often a suitable choice.
• For larger filtration area and lower flow resistance, metal fiber felt or pleated structures may be preferred.
• For uniform gas dispersion, porous metal diffusers and aeration elements are commonly used.
• For repeated cleaning and long-term use, material, pore structure, and cleaning compatibility should be reviewed together.
• For integration into existing equipment, dimensions, thickness, connections, and sealing requirements should be confirmed before selection.

Key Selection Parameters

Selection Parameter	What to Consider
Filtration Rating or Pore Size	Required particle retention and acceptable flow resistance.
Porosity & Permeability	The balance among filtration performance, flow rate, and pressure drop.
Material	Compatibility with liquids, gases, solvents, acids, alkalis, and cleaning media.
Shape & Dimensions	Whether plates, discs, tubes, cartridges, felts, or custom shapes fit the equipment.
Thickness	Mechanical support, filtration path, and available installation space.
Working Pressure	Normal operating pressure, pressure cycling, backwashing, and backblowing conditions.
Working Temperature	Continuous operating temperature, peak temperature, and thermal cycling conditions.
Cleaning Method	Backwashing, backblowing, ultrasonic cleaning, chemical cleaning, or replacement cycle.
Connection Method	Welding, brazing, bonding, clamping, threaded connections, or flange installation.
Service Cycle	Single-use, scheduled replacement, or long-term reusable operation.

Typical Application Areas

Sintered porous metals and metal fiber felts are suitable for systems requiring filtration, diffusion, flow distribution, or structural support, including:

• Chemical process filtration
• Petrochemical and specialty chemical systems
• Water treatment and liquid purification
• Gas filtration and gas purification
• Food and beverage processing
• Pharmaceutical and biotechnology equipment
• Laboratory and research systems
• Battery, fuel-cell, and energy applications
• Polymer melt filtration
• High-temperature gas and exhaust treatment
• Catalyst support and reactor components
• Fluid distribution and gas-liquid mixing
• Fermentation, aeration, and gas diffusion
• Pump, valve, tank, and pipeline protection
• Pneumatic sound attenuation and flow control
• Vacuum equipment and venting components

Customization Options

Porous metal products can be selected or customized to match equipment design and process requirements. Common configuration options include:

• Metal material and alloy system
• Pore size, filtration rating, and porosity
• Plate, disc, tube, cylinder, cartridge, or felt configuration
• Length, width, diameter, and thickness
• Single-layer, multi-layer, gradient, or composite structures
• Flat, pleated, rolled, or formed media structures
• Welded, brazed, bonded, threaded, or flanged connections
• Surface treatment and edge finishing
• Filtration, diffusion, aeration, or fluid-distribution functions

For custom requirements, providing the working medium, target filtration rating or pore size, flow rate, pressure, temperature, preferred material, product dimensions, and installation method helps support more accurate product selection.

Frequently Asked Questions