Pharma Capsule Filter-Sterile, Long-Lasting, Industrial Grade

1. What is capsule filter?

Capsule filters are a type of single-use filtration device that are typically used for liquid filtration in laboratory, pharmaceutical, biotech, and industrial applications. These filters come pre-assembled in a compact, capsule-shaped casing, making them convenient for quick setup, minimal maintenance, and disposable after use.

Capsule filters are typically used for clarification, sterilization, and separation of liquids, and they are known for their efficiency, reliability, and ease of use.

Typically, the filter element is constructed of a PP housing, with a 42, 56, or 68-diameter filter element welded to the outlet housing (60, 72/89-diameter). The two sides and end caps are then welded together. This filter element uses no adhesives or chemicals. The filter is compact, minimizes filter media loss, and can be filtered by hose and cartridge connections, without the need for element installation.

2. Types of capsule filters

• Sterile Filters: Used for sterilizing liquids, such as in pharmaceutical and biopharmaceutical applications. These filters remove bacteria, fungi, and other microorganisms to ensure that the liquid is free from contaminants. Typically, they use 0.2 µm or 0.45 µm membrane filters that are capable of removing most bacteria.
• Pre-Filters: Pre-filters are designed to remove larger particles or impurities before the liquid passes through a finer filter. These are often used in water treatment, food and beverage processing, and chemical production. They can have larger pores (e.g., 1.0 µm, 5.0 µm) and are typically used to prolong the life of a finer filter by preventing clogging.
• Carbon or Chemical Filters: Activated carbon capsule filters are used for removing odors, toxins, and certain chemicals from liquids. These filters are common in the food, pharmaceutical, and chemical industries.
• Virus Filters: Virus filters are used in biotechnology and pharmaceutical applications to remove viruses from liquids. These filters typically have very small pore sizes (e.g., 20 nm to 50 nm) and are made of highly resistant materials.

3. Size of capsule filters

Capsule filters come in a variety of sizes, depending on the flow rate of the application, filtration capacity, and type of filter media used. The size typically refers to the physical dimensions of the filter housing and the filter area, as well as the pore size and flow rate capacity.

Membrane Solutions is available with capsule filters from 1.5 inches to 30 inches, with effective membrane area as the following:

4. Connections of capsule filters

The connections of capsule filters are crucial because they determine how the filter will interface with the system it's being used in (e.g., a piping system, process line, or filtration setup). The connection type ensures that the fluid flows correctly through the filter while maintaining a secure and leak-proof seal. The connections can vary depending on the application, flow direction, and industry standards.

5. Sterile capsule filters

Apart from the standard type capsule filters, Membrane Solutions can also provide Gamma sterilized capsule filters, which are free from microorganisms before use. These filters are commonly employed in industries where sterility is a critical requirement, such as in the pharmaceutical & biotechnology. The gamma sterilization process ensures that the filters are free from bacteria, viruses, fungi, and other contaminants.