Filter Cartridge/Bag

Product Specifications

Technical details and manufacturing context for Filter Cartridge/Bag

Definition

The filter cartridge/bag is the core consumable component of a filter unit, designed to physically trap and remove particulate matter, impurities, or specific substances from liquids or gases as they pass through. It is housed within the filter unit's housing and is the primary surface where separation occurs. Its performance directly determines the filtration efficiency, flow rate, and final purity of the processed medium. This component is available in various configurations, including pleated, wound, and bag styles, to suit different filtration requirements. The media material can be selected from options such as polypropylene, polyester, nylon, cellulose, stainless steel mesh, or activated carbon, depending on the chemical compatibility and operating conditions. Key parameters to consider include filtration rating (1–100 μm), operating pressure (1.0–1.6 MPa), maximum operating temperature (80–120 °C), flow rate (10–50 m³/h), filter area (0.5–2.5 m²), length (250–1000 mm), outer diameter (60–150 mm), inner diameter (25–70 mm), media material (PP, PE, PTFE, SS), end cap material (PP, SS, Al), and weight (0.5–3.0 kg). These values are reference ranges and must be verified for the specific model and application. The filtration rating is tested per ISO 16889. Always confirm the exact specifications and standards compliance with the legal manufacturer or supplier before procurement. Proper selection ensures efficient filtration and system reliability.

Working Principle

Fluid or gas is forced through the porous media of the cartridge or bag. Contaminants larger than the media's pore size are captured on the surface (surface filtration) or within the depth of the media (depth filtration). Clean fluid passes through to the outlet. Efficiency depends on media material, pore size (micron rating), and design (pleated, wound, bag, etc.). The pressure drop across the element increases as contaminants accumulate, indicating the need for replacement. The filtration rating, typically expressed in microns, determines the smallest particle size that can be effectively removed. The operating pressure and temperature must remain within the specified limits to avoid media degradation or structural failure. Proper installation and sealing are critical to prevent bypass flow. Regular monitoring of differential pressure helps schedule maintenance and ensures consistent filtration performance.

Common Materials

Polypropylene, Polyester, Nylon, Cellulose, Stainless Steel Mesh, Activated Carbon

Technical Parameters

Parameter	Typical range	Notes & selection driver
Filtration Rating	1–100 μm	Select based on target particle size; finer rating increases pressure drop.ISO 16889
Max Operating Temperature	80–120 °C	Higher temperatures may degrade filter media.
Flow Rate	10–50 m³/h	Ensure sufficient flow for system demand.
Filter Area	0.5–2.5 m²	Larger area reduces pressure drop and extends service life.
Length	250–1000 mm	Must match housing dimensions.
Outer Diameter	60–150 mm	Must match housing dimensions.
Inner Diameter	25–70 mm	Must match core or adapter.
Media Material	PP, PE, PTFE, SS	Choose based on chemical compatibility and temperature.
End Cap Material	PP, SS, Al	Must be compatible with fluid and pressure.
Weight	0.5–3.0 kg	Affects handling and installation.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Filter Media Part
The porous material (e.g., pleated paper, felt, mesh) that physically captures contaminants.

Material: Varies (e.g., Polypropylene, Polyester)
End Caps Part
Seal the ends of the media, provide structural support, and interface with the filter housing.

Material: Polypropylene, Metal
Core / Support Cage Part
Internal structure (for cartridges) that prevents media collapse under pressure. External cage (for bags) provides support.

Material: Polypropylene, Stainless Steel
Seals / Gaskets Part
Ensure a leak-proof seal between the filter element and the housing.

Material: Nitrile Rubber, Viton, EPDM

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Filter Unit

View system integration details

Manufacturers of Filter Cartridge/Bag

Manufacturer profiles associated with Filter Cartridge/Bag.

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Frequently Asked Questions

What is the difference between surface filtration and depth filtration?

Surface filtration captures particles on the surface of the media, while depth filtration retains particles within the thickness of the media. The choice depends on the application and particle characteristics.

How do I select the correct filtration rating?

The filtration rating (in microns) should be based on the target particle size you need to remove. Finer ratings increase pressure drop, so balance efficiency with system capacity. Refer to ISO 16889 for testing standards.

What are the typical operating limits for these components?

Reference ranges include operating pressure 1.0–1.6 MPa, max temperature 80–120 °C, and flow rate 10–50 m³/h. Always verify these values for your specific model and application with the manufacturer.

How often should the filter cartridge or bag be replaced?

Replacement frequency depends on the differential pressure across the element, which increases as contaminants accumulate. Monitor pressure drop and replace when it exceeds the recommended limit, as specified by the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 150 psi (10 bar) typical, burst pressure 2-3x operating pressure
flow rate:	0.5-500 GPM (2-1900 L/min) depending on size and media
temperature:	-40°C to 150°C (varies by material)
slurry concentration:	Up to 25% solids by weight for standard designs

Product Specifications

Applied To / Applications

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