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Cartridge filters for liquid filtration systems

Cartridge filters are used where a removable element is needed inside a filter housing for liquid filtration. Plastic housings with female thread connections support installation in pipework, while replaceable filter cartridges allow servicing without replacing the complete body. Product options include pressure ratings of 5, 6 and 8 bar across cartridge filters and filter cartridges, so selection should start with the operating requirements of the installation.

Industrial cartridge filtration often depends on matching the housing, cartridge element and service parts correctly. A complete cartridge filter is suitable when a housing is needed, while replaceable filter cartridges are used when the existing housing remains in place. Accessories such as O-rings and keys support routine cartridge filter maintenance when matched to the relevant housing size.

Plastic housings and inline cartridge filters

Plastic cartridge filters suit inline filtration duties where the housing connects directly to the pipework. Connection types include female thread housings, with product options using blue, white/blue and white/black body types. Several cartridge filter housings also include a 1/8 pressure gauge connection, which can be relevant where a gauge connection point is required on the filter body.

Inline cartridge filters should be selected by checking the thread connection, pressure rating and housing style against the pipework. Where a pressure gauge connection is required, choose a housing that includes the 1/8 connection. Where only the filtration element needs replacing, select the cartridge material and micron rating that matches the existing liquid filter housing.

Filter cartridges and filtration media

Replaceable filter cartridges are offered in PP, nylon and plastic versions. Cartridge filter elements include 60 micron nylon gauze, 20 micron braided versions and active carbon cartridges. These options help match the filter element to the housing and filtration task without changing the complete cartridge filter assembly.

PP cartridge options include 60 micron nylon gauze and 20 micron braided versions. Nylon cartridge options include a 20 micron braided construction. Plastic active carbon cartridges are available in white and white/blue versions. For fine filtration systems, the micron rating is an important comparison point because it defines the particle size reference stated for the cartridge.

Pressure ratings and connection details

Pressure ratings appear as 6 bar on several filter cartridges and 8 bar on plastic cartridge filter housings, with a 5 bar option present on a larger female thread housing. Before ordering, confirm the required pressure rating, thread connection and cartridge type against the system requirements. Sizes associated with housings, keys and O-rings include 3/4, 1, 1 1/4 and 1 1/2.

Connection and size compatibility are especially important when replacing cartridge filter elements or seals. A cartridge that does not suit the existing housing may not seat correctly, while an incorrectly matched O-ring or key may not suit the filter body being serviced. Check the housing size, cartridge type and accessory size together before selecting replacement parts.

Selecting replaceable filter cartridges

Choose replaceable filter cartridges by matching the cartridge material, micron rating and pressure rating to the installed housing. PP filter cartridges are suitable where a PP cartridge with 6 bar rating and 60 micron nylon gauze is required. Nylon and braided cartridge options should be checked in the same way, using the stated pressure rating and micron rating as the key selection points.

Active carbon options are present as plastic filter cartridges with a 6 bar rating. A plastic active carbon filter cartridge should be matched to a compatible housing and the required cartridge size. For water cartridge filters and liquid filtration cartridges, the safest buying approach is to confirm the housing, pressure rating, connection and cartridge element before placing an order.

Service parts for cartridge filter housings

O-rings and keys are important service parts for cartridge filter housings. O-rings are associated with 3/4 to 1 and 1 1/4 to 1 1/2 housing sizes, while keys are also offered for larger housing dimensions. Matching these accessories to the filter housing helps maintain correct servicing and avoids selecting parts for the wrong body size.

For industrial water filters, process filtration systems and other liquid filtration duties, the housing and cartridge should be considered as a set. When comparing plastic 8 bar female thread cartridge filters, consider the thread size, pressure gauge connection and cartridge element alongside the replacement cartridge and accessory requirements for future servicing.