• Porous Metal Filters
  • Porous Metal Filters
  • Porous Metal Filters

Porous Metal Filters

  • Controllable permeability to suit different flow specifications
  • Maintain high filtration efficiencyafter continuous use
  • Well suited for high differential pressures&flow rates
  • Fully cleanable and reusable for long service time
  • No particle shedding and secondary contamination

Filson porous metal filters are commonly used for the microfiltration of gases under high temperature or pressure conditions, and liquids in a cross-flow filtration regime. Typically, it is able to withstand high differential pressure up to 3000 psi.

  • Raw material: SS 304, SS 316L, titanium, nickel, Hastelloy …
  • End caps: DOE, 215, 222, 226
  • Aperture size: 2.5-160μm
  • Outside diameter: 10-400 mm
  • Lengths: 10-3000 mm
  • Porosity: 28%-50%
  • Operating temperature: up to 930°C
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Your Professional Supplier of Porous Metal Filters In China

Filson porous metal filters are mainly made of metal powder with different particle sizes, to help meet various requirements of permeability. Regular materials of Filson porous metal filters include stainless steel powder, bronze powder, titanium powder, Inconel powder…

Filson is always committed to producing a standard porous metal filter with a length up to 3000mm, requiring no additional binder. Furthermore, our expert engineer team will also help you design the most suitable end cap of the filter cartridge for your application.

Filson is your one-stop solution of porous metal filters, do not hesitate to contact us for more product details or quotes. Please send to [email protected] or call +86 157 3695 8886 now!

Porous Metal Filters: The Ultimate FAQ Guide

Before buying porous metal filters, read this guide.

It has all information you’re looking for about porous metal filters such as type of material, properties, manufacturing process, classification, application and quality standards, just to mention a few.

So, if you want to learn more about porous metal filters, then this is the guide you’re looking for.

Let’s dive right in.

What are Porous Metal Filters?

Porous metal filters are special types of filters with sintered metal and high-quality woven wire cloth products for filtration purposes.

Porous metal filter

porous metal filter

What are the Uses of the Porous Metal Filters?

You will use the porous metal fibers for a number of functions depending on the type of porous metal filters.

Here are some of the main functions that you can perform with the porous metal filters.

·         Fluid Filtration

You will use the porous metal filters to filter gases and liquids since they have the ability to retain solid particles.

In addition to that, it has the ability to retain separate solid and liquid or gas phases using the molecular weight criteria.

·         Pressure Fall

You will use the porosity of the porous metal filters to reduce the pressure of the fluid that flows through it.

Through the pressure loss phenomenon, you will be able to reduce sound of pressurized gasses.

In addition to that, it will help in the protection of the electrical and hydraulic equipment.

·         Flow Control

It helps in controlling the flow of fluids that pass through them and creates constant fluid flow at the exit.

This is possible especially in a situation where the fluid is generated through the process of capillarity.

It will help in creating precise control of the output flows of different fluids under a lot of pressure.

·         Fluidification of Air

In this case, the porosity of the porous metal filters assists in controlling pressure that comes through different exit points.

It will promote the gasification and aeration and provide constant flow of gas and manipulate powder solids through fluidization.

·         Anti-humidity Functions

It has the capability of retaining and condensing moisture in the gas which passes through the porous metal filter materials.

Such a property will help in protecting devices against corrosion as they leave them dry and void of corrosion agents.

·         Flame Anti- Return

You can also place the porous metal filters in front of a flame to prevent it from receding back.

It is a useful product that helps in supporting different products such as gas boilers, welding facilities and heaters.

Which Raw Materials Do You Use to Make Porous Metal Filters?

Your choice for raw materials will influence the overall outcome of the porous metal filters and efficiency.

The main raw materials that you can use to make functional and efficient porous metal filters are metal alloys.

You will use different metal alloys to make the porous metal filters such as bronze, stainless steel and nickel.

Apart from that, you can use other metal alloys such as that of titanium, and special stainless-steel or powder fiber felts.

What are the Properties of Raw Materials for Porous Metal Fibers?

Well, before you choose the type of raw materials for your applications, there are specific factors to look at.

Here are the main properties that you should pay close attention to when choosing the right type of materials.

Porous metal filters

Porous metal filters

·         Self-Stability Properties

These metal alloys offer very high mechanical strength and self-supporting structures.

It also creates a definite shape that will help in maintaining proper strength and supporting structures.

It can also support seamless layout of about 1600 mm in length and 320 mm OD.

·         High Corrosion Resistance

In addition to that, they are also stainless and are very easy to clean thus preventing cases of corrosion.

In other words, the raw materials are capable of withstanding corrosion and prevent the materials from rusting.

·         Thermal Stability

You should also look at the thermal stability of the materials which can maintain temperatures of 950 degrees centigrade.

·         High Permeability levels

In addition to that, it has very high permeability levels that will only allow specific types of fluids to pass through.

In addition to that, it also has very low pressure drop systems that help in reducing the pressure in the system.

·         Proper Pore Size Distribution

You can also have proper pore size distribution which increases the rate of filtration of the porous metal filters.

In addition to that, it helps in the definition of the filtration with proper determination of the pore sizes.

·         Possible Machining and Welding

You should also look at the machining and welding properties of the porous metal filters.

Most of the porous metal filters are capable of machining as well as welding thus increasing ease of fabrication.

What is Sintering in Porous Metal Filters?

Sintering is one of the fundamental processes that you will perform in the production of porous metal filters.

It helps in the bonding of different metal products through fusion of temperature that are lower than the melting point.

You will use sintering to help in the fusion of separate grain structures thus interlinking to form rigid parts.

What is the Significance of AS Coating in Porous Metal Filters?

As coating is a sintered layer that will increase the permeability as well as lower the pressure drop.

This is a layer of extremely fine metal powder which you can apply on a cartridge to act as a proper support structure.

How do you Customize Porous Metal Filters?

You can customize your porous metal filters according to the production or application specifications.

The process begins with a designing process where you will come up with a design of the filter.

After that, you will choose the type of materials that you want for making the porous metal filters.

After that, you will dictate the properties that you want such as fatigue strength and corrosion resistance.

In addition to that, you will also dictate the right dimensions of the porous metal filters before customization begins.

You can opt for the sinter to bonded fittings to make the best porous metal filters with high corrosion resistance.

Finally, you will sinter the materials to make the porous metal filters that will fit your application requirements.

What are the Benefits of Using the Porous Metal Filters?

There are quite a number of benefits that you will draw from using the porous metal filters.

Here are some of the advantages that you will enjoy just by using the porous metal filters.

Sintered metal filters

Sintered metal filters

·         High Mechanical and Pressure Tolerance

You will use the porous metal filters because they are strong and have high mechanical and pressure tolerance.

·         High Particle Retention Range

You will also enjoy very high particle retention range by using the porous metal filters.

It has a particle retention range between 5 to 200 microns that holds different sizes of solid particles.

·         Corrosion Resistance

You will also enjoy very high levels of corrosion free filtering processes as the porous metal filters are corrosion resistant.

It prevents reactions such as chemical, physical, and mechanical that would affect the whole process.

·         High Pressure Drop

It also has very high pressure drop elements amounting to about 70% thus reducing the overall pressure.

You will be able to reduce the noise on the porous metal filters and distribute the flow evenly.

·         Great Thermal Shock

It also has very high thermal shocks thus making them suitable for applications that have high thermal shocks.

It has different physical properties that help in the maintenance of great thermal shock to aid different operations.

·         Pressure and Temperature Resistance

The materials for manufacturing the porous n=metal filters are strong enough to an extent where it can withstand pressure and temperature.

You can use the porous metal filters in applications that require very high pressure and very high temperatures.

What are the Components of the Porous Metal Filters?

Steel sintered metal filters

Sintered metal filters

Porous metal filters work properly in conjunction with all the components that make the porous metal filters.

Here are some of the components of the porous metal filters that aid in the proper operations of the metal filters.

·         Filter Housing

This is the outer part of the porous metal filters that will house all the components of the porous metal filters.

You will depend on the porous metal filter housing to protect the internal parts of the porous metal filters.

·         Inlet and Outlet Units

The inlet is the unit which will help in introducing the fluid that you would like to filter through the porous metal filters.

The outlet unit will release or eliminate the clean fluid from the porous metal filtration system.

It also has a flushing outlet that you will use in the process of flushing the fluids in case of a situation.

·         Filtration Unit

You will depend on the porous filtration unit to filter or block the solid particles from moving to the next stage.

It has pores of different sizes that are capable of retaining solid and preventing them from moving to the next stage.

·         Cleaning Indicator

You will depend on the cleaning indicator to guide you through the whole cleaning process.

It will light up in different colors which will signal different cleaning stages of the porous metal filters.

·         Reciprocating Flush Nozzles

You will use the reciprocating flush nozzles to help in reciprocating the flushing of different fluids.

It will help in alternating different types of fluids before flushing out the fluids through the flushing outlet.

How do you Manufacture Porous Metal Filters?

You will manufacture the porous metal filters using the sintering process of the porous metal filters.

Sintering of the porous metal filters comes down to three main processes.

Here is a step by step process that you can follow when sintering the porous metal filters.

1.      Obtaining Raw Materials

You will begin the whole process with the collection of raw materials that you will use to make porous raw materials.

In this case the materials will be the powder form of different types of metals for making porous metal filters.

You can make the powder forms of the metal ingredients by automizing, grinding as well as chemical decomposition.

You can also mix the metals to make an alloy depending on the type of materials that you want.

2.      Shaping the Design

Sintering involves the process of shaping the porous metal filters into a die that will shape it to different designs.

You will have to pour the powder of the metal or metal alloys into the die which will help in shaping of different designs.

You will set the machine at very high pressure which will depend on the type of metal at room temperatures.

The high pressure will compact the powders together thus forming the solid block that makes the porous metal filters.

3.      Heating the Solid Block

Finally, you will remove the solid block from the pressure gauge and then place it under very high temperatures.

The metal powders will then fuse together and form a porous metal filter without melting the metal.

It will form a high porous, rigid, and strong porous metal filter that will help in filtering the fluids.

How Do You Classify the Porous Metal Filters?

You can classify the porous metal filters by using the different types of materials.

Here is a list of porous metal filters that you can classify through the types of materials.

  • Sintered brass filters
  • Sintered bronze filters
  • Sintered Stainless-steel filters
  • Sintered Copper filters
  • Sintered Nickel filters
  • Sintered Titanium filters

What are the Configurations of the Porous Metal Filters?

There are different configurations of the porous metal filters that you can use depending on the application.

One of the configurations that you could look at has a filtration accuracy between 0.2 to 1000 microns.

In other words, you will configure the porous metal filters in microns depending on the type of application.

How Do the Porous Metal Filters Work?

Porous metal filter

Porous metal filter

Porous metal filters work blocking the contaminants from going through with the fluids.

It all begins with the process of allowing the fluid to flow into the porous metal filter.

The fluid contains solid contaminants that flow alongside the fluid which can be liquid or gas.

As the fluid flows, it will go from the inlet straight to the porous metal filters.

The porous metal filters have pores of different sizes of between 5 to 2000 microns.

The pores are too small and will only allow the entry or passage of the fluid which can be gas or liquid.

You will note that the solid products will not pass through the pores thus being separated from the fluid.

After that, you will allow the fluid to move to the outlet of the porous metal filters as a clean fluid.

What is the Process of Cleaning the Porous Metal Fibers?

There are different methods that you can use in the process of cleaning the porous metal filters.

Here are the main porous metal filter cleaning methods that you can use.

·         Blowback for Gas Applications

You will use the blowback cleaning method in the process of cleaning the porous metal filters for filtration of gases.

·         Backflush for Liquid Applications

In applications that filter liquids, you will employ the backflush cleaning method to get rid of the dirt and stains.

·         Ultrasonic Cleaning Process

Ultrasonic cleaning is an automatic cleaning process that you can use to clean the porous metal filters.

What should you Consider when Choosing Porous Metal Filters?

When choosing the porous metal filters, you should look at specific features of the porous metal filters.

Here are the three main factors that you should look at when choosing a porous metal filter.

·         Contamination Retention

You should go for the porous metal filter that has the greatest contamination retention factor.

The greater the retention factor, the higher the filtration rate of the porous metal filters.

·         Backwash Ability

You will also look at the ability of the porous metal filters to backwash the fluid in order to clean it again.

In this particular case, you will look at the porous metal filters that have the best backwash abilities.

·         Pressure Drop

Here, you will also look at the best porous metal filter that exhibits proper pressure drop properties.

The greater the pressure drop of the porous metal filters, the better the performance and efficiency of porous metal filters.

How Do Porous Metal Filters Compare to Pleated Metal Filters?

Porous metal filters and pleated metal filters are the two main types of sintered metal filters that you can choose from.

Here is a comparison between the two main types of sintered metal filters.

·         Porous Metal Filters

This type of filter has pores or holes which will help in the filtration or separation of solids from fluids.

They have very high tolerance and mechanical properties and uses cryogenic gun powder to filter fluids.

You will use them in applications that have working temperatures below 80 degrees centigrade.

Porous metal filters

Porous metal filters

·         Pleated Metal Filters

This is a type of filter which uses pleats to help in the filtration of the fluids to eliminate the solid particles.

They have a very large surface area in comparison to the porous metal filters thus increasing the filtration rates.

Porous metal filters

Pleated metal filter

What are the Applications of the Porous Metal Filters?

You can use the porous metal filters in different type of applications in order to filter different types of fluids.

Here are some of the applications of the porous metal filters.

·         Chemical Processing Industry

You can use the porous metal filters to filter different types of fluid chemicals.

It will help in eliminating solid products that may be present in different air and liquid chemicals.

Among the chemical processing industries that use porous metal filters is the nuclear manufacturing industry.

·         Petroleum Refining Industry

You can also use the porous metal filters in the petroleum refining industry to refine or clean the petroleum.

One of the applications involve separation of different types of petroleum products from one another.

How Much Do the Porous Metal Filters Cost?

Porous metal filters are available in different types thus affecting the cost of the porous metal filters.

High quality porous metal filters often cost a lot more than the low-quality porous metal filters.

Apart from that, you will look at the size of the porous metal filters where bigger filters cost a lot more.

In addition to that, you should also look at the type of porous metal filters which have different material properties.

For instance, copper porous metal filters will cost you a lot more than the brass porous metal filters.

Generally, you will spend between 50 to 1000 US Dollars in the purchase of the porous metal filters.

What are the Mechanical Properties of Porous Metal Filters?

In the manufacture of porous metal filters, you will also look at enhancing the chemical properties of porous metal filters.

Here are some of the mechanical properties that you ought to look at.

·         Strength of the Porous Metal Filters

You should consider looking at the strength of the porous metal filters in terms of the density and properties.

·         Shape of Porous Metal Filters

You should consider the space as well as manufacturing method when looking at shape of the porous metal filters.

How can you Increase Efficiency of Porous Metal Filters?

You can increase the efficiency of the porous metal filters by optimizing all the functions of the porous metal filters.

Here are some of the factors that you ought to pay close attention to.

·         Proper Record Keeping

You should keep records of the daily operations of the porous metal filters and co pare them regularly.

With the records, you will be able to identify faults that slow down the whole filtration process and fix them.

·         Proper Maintenance Procedures

You should also go through proper maintenance processes with the porous metal filters to get rid of the debris.

It will be a lot easier with a maintenance schedule which you must follow to the letter and maintain the machine.

·         Regular Part Replacements

You should also be in the habit of maintaining and replacing the porous metal filters on a regular basis.

For instance, the filters may clog and instead of cleaning you can simply replace them to improve the working efficiency.

·         Optimizing the Filtration Settings

You should work with professionals who can simply adjust the porous metal filters to work at optimum levels.

What are the Limitations of Porous Metal Filters?

As much as you may enjoy using the porous metal filters, there are specific limitations that you may face.

Hera are the main limitations of using the porous metal filters.

·         High Cost of the Raw Materials

Since we are dealing with metal raw materials, you will have to contend with the high cost of different types of metal.

For instance, bronze and copper are very good raw materials but often cost a lot thus high cost of filters.

·         Does Not Work Well in Special Atmospheric Conditions

You will have to adjust porous metal filters to specific conditions since it does not work well in special atmospheric conditions.

·         Complexity in Producing Big Parts

You will also feel a lot of weight when it comes to the production of bogger parts of the porous metal filters.

Sintering bigger parts of porous metal filters is a huge task and may cause a lot of problems in the process.

What are the Quality Standards for Sintered Metal Filter Element?

You must also make sure that the porous metal filters are of high quality by looking at the quality certifications.

Here are some of the quality standards that porous metal filter manufacturers adhere to.

  • UL Quality Certifications
  • CE Quality Certifications
  • RoHS Quality Certifications
  • Telcordia Quality Certifications
  • REACH Quality Certifications

How does Sintered Bronze Filter compare to Sintered Stainless Steel Filters?

Sintered bronze filter

Sintered bronze filter

In this case, the major difference between the two types of sintered metal filters is the type of materials.

Sintered bronze filters are products of compression of the bronze metals.

On the other hand, you will manufacture sintered stainless-steel filters by compressing stainless steel powders.

You will also enjoy the freedom of using corrosion resistant metal filters since both of the metals are corrosion resistant.

Since bronze is soft, sintered bronze filters are bound to deform which is not possible with tough sintered stainless-steel filters.

After exposure to different chemical reagents, you will note that sintered bronze filters may change chemical properties.

On the other hand, sintered stainless-steel will remain constant since it does not react faster to different chemicals.

How does Sintered Copper Filter compare to Sintered Brass Filter?

Sintered copper filter

Sintered copper filter

Sintered brass filter

Sintered brass filter

Well, the main difference between the sintered copper filters and the sintered brass filters is the material.

You will use copper to make the sintered copper filters and brass to make the sintered brass filters.

In addition to that, copper has better heat conduction that brass and will dissipate heat faster than brass filters.

Apart from that, copper is one of the most expensive metals and will cost a lot more to manufacture.

Sintered brass filter is a cheaper option even though it does not perform as well as the sintered copper filters.

Why should you Import Porous Metal Filters from Sintered Metal Filter Manufacturer in China?

You should consider importing porous metal filters from China since China is the biggest manufacturer of porous metal filters.

Implying that you can order any number of porous metal filters that you so please to fit your application requirements.

In addition to that, you will get quality that cannot be beaten by other suppliers thus boosting your production process.

The porous metal filters from China are also durable and will eliminate chances of downtime in the filtration process.

Apart from that, China will make it very easy for you to conduct business because of high quality infrastructure.

In other words, you can simply order your custom porous metal filters through the efficient online communication channels.

What’s more, China has warehouses, perfect road, railways, sea and air transports systems that will transport your cargo.

To conclude, you will enjoy the affordable prices of the porous metal filters alongside the warm hospitality of the Chinese.

At FilSon Filters, we design and manufacture a range of metal filters depending on your unique specifications.

Even if you’re looking for filter replacement for reputable brands, FilSon Filters offers perfect solution for you.

Contact us now for the best prices on porous metal filters.

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