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Capsule Filters Vs. Cartridge Filters: What’s The Difference?

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Before selecting the ideal filter for your precise filtration requirements, it’s essential to grasp the disparities between a capsule filter and a cartridge filter. Each type of filter boasts distinct features and advantages.

Sanitek Filter provides comprehensive insights into the definitions and operational principles of these two filter variants, aiming to succinctly outline the disparities between capsule filters and cartridge filters for your convenience.

What Is a Cartridge Filter And How Does It Work

What Is a Cartridge Filter And How Does It Work?

Cartridge filters are surface filtration elements, which use tiny permeable tissues formed on the surface of the filter media to block out particulate matter from the gas.

How Do Cartridge Filters Work?

The working principle of a cartridge filter is mainly based on filtration. It usually consists of one or more cylindrical-shaped cartridges containing many tiny holes inside to form a filter.

When air containing dust flows through the cartridge, the coarser particles will sink to the bottom under the effect of gravity, while the finer dust particles are blocked by the holes in the filter mesh and cannot pass through the cartridge to the clean area inside.

In this way, dust is left on the outer surface of the filter cartridge, while clean air can be smoothly discharged through the interior of the cartridge.

To further improve filtration efficiency, the cartridge filters are often corrugated in shape to increase the surface area, or coated with an adhesive that allows dust particles to adhere and remain on the surface as they come into contact with it. In this way, even small particles of dust are effectively removed.

Features Of Cartridge Filter

Features Of Cartridge Filter

  • A variety of filtration media: Cartridge filters can choose different filtration media according to different filtration requirements and adapt to different working conditions and media.
  • Easy maintenance: it is relatively simple to clean or replace the filtration medium and convenient to maintain.
  • Wide range of applications: It is suitable for liquid or gas filtration and can be used in water treatment, chemical industry, food processing and other fields.
  • High-efficiency filtration: Due to the large filtration area, cartridge filters can usually provide relatively efficient filtration.
  • Different designs: Cartridge filters are available in single-cartridge and multi-cartridge designs, which can be selected according to specific requirements.

What Is a Capsule Filter And How Does It Work?

The capsule filter element, also known as a disposable filter element, is strictly speaking a filtration unit that should be categorized as a filter. Due to its small size and filtration area, the capsule filter is very suitable for the filtration of liquids and gases with small flow rates.

How Does The Capsule Filter Work

How Does The Capsule Filter Work?

When fluids pass through the filter, they pass through the annular flow channel and enter the hose, which is connected to the inlet and outlet respectively. During the filtration process, the exhaust port at the top is opened and the fluid direction passes into the filtrate.

When the filtrate fills the filter, all the air is squeezed out and the exhaust port of the bladder filter is screwed on. After the filtration is completed, open the exhaust port at the bottom of the filter to discharge the remaining filtrate. In this way, the capsule filter can effectively purify the fluid and achieve the purpose of filtration.

In addition, capsule filters utilize filtration media (such as fiber capsules or microporous membranes) to filter solid particles and impurities from the fluid. These media are capable of retaining impurities, while the pure fluid is discharged through the outlet, realizing liquid-solid separation.

Features Of Capsule Filter

  • High filtration efficiency: the use of high-quality filtration media and pore-size design can effectively remove impurities and microorganisms in the solution and ensure the purity of the beverage.
  • Bio-safety and non-toxicity: During the production process, it is required to be carried out in a clean environment and ensure the bio-safety and non-toxicity of the product to protect the health of consumers.
  • Wide applicability: it can meet the requirements of different beverage production processes and is suitable for solvent filtration under various PH values and temperatures, such as beverages and fruit juices.
  • A variety of specifications are available: the capsule filter should provide a variety of length and specification options to meet the needs of different processing capacities and flow rates to achieve the best filtration effect.

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Capsule Filter VS Cartridge Filter: What’s the Difference

What is Tangential Flow Filtration

Structure and Material

The primary difference between these two filter types is their construction and materials. Cartridge filters are usually cylindrical in shape and have an open design that allows them to be inserted into the filter housing unit.

On the other hand, capsule filters are self-contained and do not require an external housing. The materials used for both types of filters vary and can be selected according to the requirements of a particular application.

Application Suitability

Cartridge filters are ideal for large-scale applications due to their large filtration area and compatibility with multiple cartridges in a single housing.

In contrast, capsule filters are better suited for smaller scale applications and where space constraints exist. Capsule filters are often preferred for ventilation and gas filtration in laboratory environments as well as biopharmaceutical processes.

Ease of Use

Capsule filters lead the pack when it comes to ease of use. Because they are self-contained, they are quick and easy to install, eliminating the need for a separate housing unit.

Cartridge filters, while less complicated to use, do require a separate housing unit that needs to be installed and occasionally cleaned or replaced.

Cost Implications

While cartridge filters may initially appear to be more cost-effective, it is vital to consider the additional costs of housing units and maintenance.

Capsule filters, while they may have a higher initial cost, are often cheaper in the long run due to their independence and lower maintenance requirements.

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Where Can I Buy Capsule Filters And Cartridge Filters?

If you’re considering purchasing both types of filters, we’re confident that you’ve grasped the disparities between capsule filters and cartridge filters and are better equipped to select the appropriate filter for your application.

From construction and suitability to ease of use and cost considerations, each filter type offers unique features that may cater to different needs.

With over a decade of expertise in filtration technology, Sanitek Filter stands as a trusted name in the industry.

Whether you’re seeking a capsule filter or a cartridge filter, our team is poised to provide high-efficiency filtration solutions tailored to your specific requirements. Reach out to us today, and one of our filtration experts will promptly address your inquiry within 24 hours.

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