Sat. Apr 13th, 2024

Comparing Bag Filter Housing Materials: Which is Best for Your Application?

Factors of choosing the right Bag filter housing

Bag filter housing are an essential component in many industrial applications where there is a need to filter out unwanted particles and contaminants from liquids or gases. These housings come in various materials, each with unique properties that make them suitable for different applications. In this article, we will take a closer look at the different materials used in bag filter housing systems, compare their pros and cons, and help you choose the best one for your specific application. 

Common Materials Used for Bag Filter Housing:

Stainless Steel

Stainless steel is one of the most commonly used materials for bag filter housing due to its excellent corrosion resistance, durability, and strength. It is ideal for applications that involve high temperatures, pressures, or harsh chemicals. Also, you can easily clean and maintain these stainless steel bag filter housing systems.


Polypropylene is a thermoplastic polymer that is lightweight, cost-effective, and chemically resistant. It is ideal for applications where the process fluid is highly corrosive, such as in the chemical and pharmaceutical industries. Polypropylene bag filter housing are also easy to handle and install due to their lightweight nature.


Polyvinyl chloride (PVC) is a synthetic plastic polymer that is resistant to corrosion, chemicals, and weathering. It is ideal for applications where the process fluid contains acids, alkalis, or other aggressive chemicals. PVC bag filter housings are also lightweight, making them easy to install and transport.

Carbon Steel

Carbon steel is a strong and durable material that is commonly used in bag filter housings due to its strength and low cost. However, carbon steel is not suitable for applications where the process fluid is highly corrosive, as it will rust and corrode over time.

Fiberglass-reinforced plastic (FRP):

FRP (Fibre Reinforced Plastic) is another robust material made from a polymer matrix material reinforced with glass fibers. This material is lightweight, long-lasting, and has a high strength-to-weight ratio, making it a good choice for applications where weight and durability are critical. FRP bag filter housing is corrosion, chemical attack, and high temperature resistant, making it ideal for usage in severe settings.

Factors to consider when choosing a bag filter housing material

The choice of material is determined by several factors, including the type of fluid to be filtered, the operating conditions, and the filtration performance requirements. Here are some key factors to consider when selecting a bag filter housing material:

Compatibility with the fluid: The housing material should be compatible with the fluid being filtered to avoid any chemical reactions or corrosion that may compromise the filtration process. Consider factors such as acidity, alkalinity, and temperature of the fluid.

Application: The application will determine the type of material to use. For example, plastic housings are suitable for low-temperature applications, while stainless steel is suitable for high-temperature applications.

Operating conditions: The material should be able to withstand the operating conditions of the filtration system, such as pressure, temperature, and flow rate. This helps to ensure that the housing will not deteriorate or fail prematurely.

Filtration performance: The material should be able to provide the desired filtration performance, including the ability to remove contaminants of a certain size and maintain a flow rate over time. This may require a specific material with a particular pore size or surface characteristics.

Regulatory requirements: Certain applications may require compliance with specific regulations or standards. The material selection should take into account any relevant regulatory requirements, such as FDA or NSF standards.

Cost: The cost of the material should be considered, as well as any additional costs associated with installation and maintenance. Find one of the trusted Bag Filter Housing Manufacturers in India to get high-quality products at a low price range.  

Comparison of Bag Filter Housing Materials 

Here is a comparison of some commonly used bag filter housing materials:

Stainless steel:


  • Strong and durable, suitable for high-temperature and high-pressure applications
  • Corrosion-resistant and long-lasting
  • Available in different grades to suit various applications


  • Stainless steel is expensive metal compared to other materials
  • Installation is a bit complex due to its heavy weight
  • Not suitable for highly corrosive environments

Carbon steel:


  • Cost-effective
  • Strong and durable
  • Suitable for low-temperature and low-pressure applications


  • Not as corrosion-resistant as stainless steel
  • Needs constant maintenance to prevent the filter from corrosion and rust

Fiberglass-reinforced plastic (FRP):


  • Lightweight and easy to install
  • Corrosion-resistant, suitable for highly corrosive environments
  • Electrically non-conductive, which can be an advantage in some applications


  • More expensive than some other materials
  • May not be suitable for high-temperature and high-pressure applications
  • Requires specific expertise for installation and maintenance



  • Lightweight and easy to install
  • Good chemical resistance
  • Low cost compared to some other materials
  • Suitable for low-pressure applications


  • Not suitable for high-temperature applications due to low thermal resistance
  • Less durable as compared to other materials
  • Not suitable for highly corrosive environments
  • Can release harmful gases when exposed to high temperatures or fire, which can pose safety hazards



  • Lightweight and easy to install
  • Economical
  • Resistant to chemicals such as acids


  • Needs regular maintenance
  • Limited temperature and pressure capabilities
  • Can’t be used in highly corrosive environments


In conclusion, the choice of bag filter housing material depends on the specific needs of your application. Factors such as the type of process fluid, temperature, pressure, and chemical compatibility should be considered when selecting the appropriate material. Stainless steel, polypropylene, PVC, carbon steel, and FRP are all excellent choices for bag filter housing, but the right material for your application will depend on your specific requirements.

If you’re looking for trusted and reliable Bag Filter Housing Suppliers in India, look no further than GTS Filters And Systems (India) Pvt. Ltd.. We can design and build customized bag filters according to your specific requirements and suitable applications. Contact us now.

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