Delivers consistent performance&absolute safety in extreme process conditions,backed by our core capabilities:
>>>Features proprietary R&D and manufacturing of microfiltration membranes.
>>>Utilizes raw materials that comply with FDA and USP Class VI standards.
>>>Operates under a dual-certified ISO 9001&ISO 13485 quality management system.
Membrane Filter Cartridge:Absolute Protection for Critical Process Streams
In the world of high-stakes manufacturing, "filtration" is synonymous with "security." Whether you are ensuring the sterility of an injectable drug, protecting a fermentation tank from contamination, or stabilizing the taste of a fine wine, the filter cartridge is your final line of defense.
At LOONG FILTRATION, we engineer Membrane Filter Cartridges that provide absolute-rated removal efficiency. Manufactured in our ISO-certified 100,000-level cleanrooms, our products bridge the gap between rigorous global compliance standards and cost-effective manufacturing. We don't just sell filters; we deliver the Certificate of Analysis (COA) and validation confidence you need to pass your audits.
Engineered by Application of Membrane Filter Cartridge
We understand that a filter for solvents requires different chemistry than a filter for vaccines. Explore our specialized solutions:
1. The Biopharma Guardian: Polyethersulfone (PES)
The Challenge: Terminal sterilization requires absolute bacterial retention without binding valuable proteins.
The LOONG Solution: Our asymmetric PES Membrane Cartridges offer high flow rates and ultra-low protein binding.
Key Specs: 0.1μm / 0.2μm / 0.45μm. Validated for Brevundimonas diminuta retention (ASTM F838).
Use Cases: WFI systems, vaccines, ophthalmics, and biological buffers.
2. The Chemical Shield: Polytetrafluoroethylene (PTFE)
The Challenge: Harsh acids, aggressive solvents, and sterile tank venting.
The LOONG Solution:
Use Cases: Fermentation air inlet/exhaust, semiconductor etchants, and solvent API production.
3. The Industrial Workhorse: Nylon 66 & PVDF
The Challenge: Clarifying solvents and removing particles from fine chemicals.
The LOONG Solution: Naturally hydrophilic Nylon 66 provides broad chemical compatibility at an economical price point. PVDF offers an alternative for specific protein-sensitive applications.
Use Cases: HPLC sample prep, photoresists, and high-purity chemicals.
The LOONG Membrane Filter Cartridge Quality Promise: "Traceable Trust"
We know that in your industry, documentation is as important as the product itself.
100% Integrity Tested: Every sterile-grade cartridge is subjected to non-destructive testing (Bubble Point / Diffusional Flow) before shipment.
Biological Safety: All wetted components comply with USP Class VI-121°C Biological Reactivity Tests and FDA 21 CFR food contact regulations.
Pure Construction: We use advanced thermal bonding technology. No adhesives, binders, or surfactants are used, ensuring minimal extractables and low TOC (Total Organic Carbon).
Seamless Retrofitting of Membrane Filter Cartridge
LOONG cartridges are designed with standard dimensions to fit existing housings from Pall, Millipore, Sartorius, and Parker.
End Cap Configurations: 222/Fin (Code 7), 226/Fin (Code 2), DOE, and 222/Flat.
Lengths: 10”, 20”, 30”, 40”.
[Download Validation Guide]
Need to verify chemical compatibility or retention data?
Request our Technical Dossier or start a conversation with our application engineers for a cross-reference quote.
