Capsule Filters Supplier
Capsule Filters are self-contained, ready-to-use, single-use filtration units featuring an integrated plastic housing. Unlike traditional cartridge filters, capsule filters combine an internal pleated membrane or depth filtration media with a protective housing through a secure welding process. This integrated design eliminates the need for separate, costly metal or plastic filter housings and allows direct connection to filtration systems through tubing or pipeline fittings.
Designed to minimize cross-contamination risks, eliminate housing cleaning requirements, and simplify installation and replacement, capsule filters offer a convenient and efficient filtration solution. They are widely used in pharmaceutical manufacturing, biotechnology, laboratory applications, microelectronics, and specialty chemical processing.
Capsule Filter Housing Designs
Long Capsule filter
- Features an elongated cylindrical design, suitable for configurations requiring a larger filtration area.
Compact Capsule Filter
- Features a compact, short cylindrical design, ideal for filtration systems with limited installation space.
Mini Capsule Filter
- Features a small cylindrical design, suitable for low-flow applications and laboratory filtration.
Disc Capsule Filter
- Features a compact, flat disc design, ideal for small-volume liquid, gas and laboratory filtration.
Pleated Filter Technology
Pleated filters are widely used as effective surface filtration due to their excellent flow rates and high efficiency.
Each capsule features a compact filter element thermally bonded into a durable, disposable polypropylene housing. Its permanently sealed, one-piece design ensures reliable, secure filtration across a wide range of fluids and applications.
Safe, Efficient Pharmaceutical Filtration
Easy change out reduces downtime
Including 0.2 micron capsule filters, disposable capsule filters, depth filter capsules, and PES, polypropylene, PTFE, and PVDF capsule filters, as well as water filter capsules and specialized solutions such as Pureflo capsule filters.
How to Select Right Capsule Filtration
By 4 Steps:
Sterile filtration of pharmaceutical solutions, vaccines, biologics, and process fluids？
Small-volume filtration of samples, reagents, buffers, and laboratory solutions？
Micron ratings indicate the size of particles a filter can capture, measured in micrometers (µm). Ratings typically range from 0.1 µm to 10 µm, and the lower the number, the finer the particles the filter removes.
Your fluid type usually guides media selection. Polypropylene and polyester are the most widely used options for pleated filters.
Common lengths are 50mm or 1, 5, and 10 inches.
Have a Part Number?
But How we guaratnee Filter quality?
From raw material inspection to final product testing, we are committed to ensuring consistent quality, reliable filtration performance, and dependable products that meet our customers’ requirements.
Workers verify incoming filter media & component specifications.
We control pleat uniformity and filtration area for consistent performance.
We inspect end-cap bonding, sealing, and dimensional accuracy.
We verify filtration efficiency, flow rate, and pressure drop against product specifications.
Identification & Packaging
Lot Coded
- Laser etched lot code on membrane & Cryto cartridges
- Traceable back to raw materials
QR Code / Barcode
- Product traceability
- Links directly to further information for each product
Stock management integration
Four Protective Layers
- Vacuum sealed inner packaging
- Tough outer polybag layer provides additional protection
- Individual product boxes
- Heavy duty outer carton
Frequently Asked Questions
What Is a Capsule Filter and How Does It Work?
A capsule filter is a self-contained filtration unit with a membrane or depth filter permanently enclosed in a protective housing. As liquid or gas passes through the filter media, particles and other targeted contaminants are retained. Its sealed, ready-to-use design simplifies installation and reduces handling requirements.
What Are Capsule Filters Used For?
Capsule filters are widely used in pharmaceutical manufacturing, biotechnology, laboratories, food and beverage processing, and electronics production. Common applications include particle removal, liquid clarification, buffer filtration, microbial reduction, and sterile gas venting. Their compact design makes them particularly useful for small-batch processing and single-use filtration systems.
What Is the Difference Between Capsule Filters and Cartridge Filters?
Capsule filters combine the filtration element and housing into one disposable unit, eliminating the need for a separate reusable housing. Cartridge filters require an external housing but may be more economical for repeated, large-scale operations. Capsules are particularly convenient for laboratories, small batches, and single-use processing.
How Do I Choose the Right Capsule Filter?
Choosing the right capsule filter requires evaluating the fluid type, filtration objective, membrane material, pore size, flow rate, and processing volume. Chemical compatibility, operating pressure, temperature, and connection type also matter. For critical applications, verify retention performance, product recovery, and applicable validation requirements before selection.
What Pore Sizes Are Available for Capsule Filters?
Capsule filters are available in various pore sizes, commonly including 0.1, 0.2, 0.45, 1, and 5 microns, depending on the filter media. Smaller ratings generally target finer contaminants, while larger ratings support clarification and prefiltration. Sterilizing-grade performance requires validated microbial retention, not pore size alone.
What Membrane Materials Are Used in Capsule Filters?
Common capsule filter media include polyethersulfone (PES), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), nylon, and polypropylene (PP). PES is frequently selected for aqueous filtration, while hydrophobic PTFE is suitable for gas venting. Material selection depends on chemical compatibility, protein binding, filtration performance, and process requirements.
Can Capsule Filters Be Sterilized and Reused?
Some capsule filters support autoclaving, gamma irradiation, or steam sterilization, depending on their construction and manufacturer specifications. However, many are designed for single-use operation. Reuse should never be assumed safe, particularly in pharmaceutical applications, without validated cleaning, sterilization, filter integrity, and contamination-control procedures.
How do you test the integrity of a capsule filter?
Capsule filter integrity is commonly evaluated using bubble point, diffusion or forward flow, and water intrusion tests, depending on membrane type. These nondestructive methods help detect defects in the filtration assembly. Acceptance limits must follow validated manufacturer specifications and applicable process requirements.
How often should capsule filters be replaced?
Capsule filters should be replaced when differential pressure exceeds specified limits, flow performance becomes unacceptable, or the validated filtration cycle ends. Replacement frequency depends on fluid contamination, membrane area, process conditions, and filtration volume. Single-use capsules are generally discarded after their intended production batch.
Pleated Filter Cartridges Compliance
- USP Class VI - Plastics
- ISO 9001 & ISO 13485
- Regulation (EC) 1935/2004
- FDA Compliant Materials
