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A Comprehensive Guide To Help You Choose The Best Liquid Bag Filter Housing For Your Needs

Posted on July 26 2023

Discover the Ideal Bag Filter Housings for Your Application! Choose from Single Round, Multi Round, Duplex & More. Contact us for Expert Guidance & Fast Shipping - East Coast Filter

Bag Filter Housings, also known as Bag Filter Vessels, are designed to hold one or multiple Bag Filters in liquid applications. In a stream of liquid or gas, a filtration bag is enclosed by a bag filter housing. These housings are employed in several applications that have high flow rates and require large dirt-holding capacity capabilities.


Types Of Bag Filter Housings

There are several types of bag filter housings, which makes it overwhelming to decide which one to buy. We are here to guide you through.


Types of Bag Filter Housings:

Their names indicate that the single-bag filter housing only holds one bag filter. There are a variety of sizes available to accommodate different applications.

Due to its ability to accommodate multiple filter bags, the multi-bag filter housing offers greater filtration effectiveness than a Single Round Filter Housing.


Duplex Filter Housings utilize two or more Filter Housings piped in series or parallel. The D8 Duplex Design allows the user to continuously use the vessel without having to shut down the line to service while the Manifold Duplex has a common Inlet and Outlet with the capability of closing individual Ball Valves on various Housings to service. Both of these options are ideal in applications where uninterrupted service is required. 


Materials to Consider

  1. Polypropylene Plastic

These bag filter housings allow for chemical resistance, high-temperature tolerance, and exceptional mechanical strength. Also, it is resistant to most acids, alkalis, and organic solvents, which adds to their durability and longevity for industrial applications. Its lightweight nature and ease of fabrication make it a cost-effective choice for bag filter housings. 

  1. Stainless Steel

Selecting a stainless-steel filter housing is critical when working under challenging operating circumstances or stringent sanitary regulations. Available in 304 and 316L Stainless Steel. 

  1. Carbon Steel

Carbon steel is ideal for bag filter housing due to its high strength, durability, and resistance to corrosion, abrasion, and high temperatures. Its heavy-duty nature enables it to withstand harsh operating conditions, ensuring long-term performance.

  1. Hastelloy

This nickel-based alloy has a high concentration of chromium, molybdenum, and other elements, adding to its durability and strength in high-performance filtration in corrosive environments. Hastelloy has high resistance to pitting, crevice corrosion, and stress corrosion cracking, making it best for industrial bag filter housing.

  1. PVDF

An application that uses corrosive or high concentrations of chemicals cannot use a standard Stainless or Carbon Steel Vessel, but requires a more robust material like PVDF. High Temperature processes that run up to 300°F (148°C) are also ideal for PVDF Bag Filter Housings.

  1. Aluminum Vessels

Aluminum bag filter housings are purposely built for compressed air applications. These are available in different port sizes and pressure ratings. It is especially effective in water-based applications like machine tool coolants and cooling towers, where efficiency and flow rate are paramount. 


Things To Consider While Buying Bag Filter Housings


You can further base your selection by considering the following points:

  • The Working Conditions

Some industries use high-temperature filters for liquids, which plastic bag filter housing may not be able to resist. For such demanding operational circumstances, stainless steel is more resilient and ideal.

  • Flow Rate

Another recommendation from our side is to consider the flow rate. Using a multi-bag filter housing is preferable when dealing with large flow rates.

  • Chemical Compatibility

It's important to consider the sort of filtered liquids used. Their chemical properties must be studied to avoid unnecessary harmful reactions.


What do we stock?

East Coast Filter never settles for less when it comes to variety and quality. Any configuration of Housing can be manufactured specifically for each application and requirement. While most vessels are made to order, we do have a collection of Bag Filter Housings in stock that can ship out immediately.

If you are still unsure of what is the correct filter housing for your application, one of our Engineers can easily help determine what will work best. Contact our office for assistance today! 


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