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STF Series Capsule Filter Cartridge
STF Series Capsule Filter Cartridge STF Series Capsule Filter Cartridge
STF Series Capsule Filter Cartridge STF Series Capsule Filter Cartridge
STF Series Capsule Filter Cartridge STF Series Capsule Filter Cartridge
STF Series Capsule Filter Cartridge STF Series Capsule Filter Cartridge
STF Series Capsule Filter Cartridge STF Series Capsule Filter Cartridge

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STF Series Capsule Filter Cartridge

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  • STFP/SRFA/STFE

  • Pharma&Biotech, Microelectronics, Laboratory

  • Capsule Filters

  • PES, Nylon, PTFE, PP, Mixed cellulose (MCE), Glass fiber (GF), PVDF

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Low Adsorption Design STF Series Capsule Filter Cartridge for Diagnostic Reagents & Biological Samples


The STF Series Capsule Filter Cartridge is designed for diagnostic reagent and biological sample processing, featuring low protein-binding membranes that maximize biomolecule recovery. Equipped with standardized 1"/1.5" tri-clamp connections for seamless integration into stainless steel systems, these filters are manufactured in ISO-certified cleanrooms to ensure sample integrity. Ideal for applications requiring high recovery rates and consistent quality, they provide reliable filtration for serum, peptides, and cell culture products.


APPLICATIONS

• Serum & Peptide Solution Filtration: Gentle sterilization of heat-sensitive biologicals including FBS and therapeutic peptides

• Diagnostic Reagent Production: Purification and sterilization in the manufacturing of immunoassays and molecular diagnostics

• Cell Culture Harvest Processing: Safe handling of cell culture supernatants and harvest fluids in cell therapy and bioprocessing

• Immunoanalyzer Fluid Maintenance: Reliable protection for fluid pathways in automated immunoassay systems

• Pharmaceutical Water Treatment: Effective bioburden reduction at the point-of-use in purified water systems












BENEFITS OF  STF SERIES CAPSULE FILTER CARTRIDGE

• Superior Low Adsorption Performance

Specially treated membrane minimizes binding of proteins and biomolecules, ensuring high recovery of valuable samples

• Reliable Sealing & Pressure Resistance

Optimized structural design maintains integrity under rigorous process conditions with excellent pressure tolerance

• Easy System Integration

Standard tri-clamp connections enable direct installation into stainless steel pipelines, reducing additional fittings

• Ready-to-Use Sterile Assurance

Disposable design combined with strict cleanroom manufacturing ensures immediate availability and prevents cross-contamination


MATERIALS OF CONSTRUCTION

Filter Media
PES/PTFE/Nylon/PP/MCE/GF/PVDF 
Cage & Support & End Caps PP
Drainage PP
O-rings/Gasket Silicone/Viton/EPDM/TEV


OPERATING CONDITIONS 
Max. Temperatur
≤60 ℃
Maximum Operating Pressure
3.5 bar@23 ℃; 3.0 bar@60 ℃(Liquid)
3.0 bar@23 ℃; 2.5 bar@60 ℃(air)


CHARACTERS

Filtration Area
1.1 ft/2.5", 2.2 ft/5"
Removal Ratings (mm)
0.1, 0.22, 0.45, 0.65, 0.8, 1.2, 3.0, 5.0


BIOSAFETY 

Endotoxi
<0.25 EU/ml  
Extractabl
≤15 mg/5"


DIMENSION
Diameter
70 mm
Length
2.5", 5", 10
Inlet
1" TC/ 1.5" TC Joint
Outle
1" TC/ 1.5" TC Joint



SERIES MATERIAL RATING(μm) SIZE SEAL CONNECTION
Phamarmical PP 0.1μm 2.5 No 1/4〞NPT With 6-9mm pagoda adapter
Laboratory MCE 0.22μm 5 Silicone 1/2〞NPT
Electronics Nylon 0.45μm 10 EPDM 3/8〞NPT

PES 0.65μm 85


PTFE 1.0μm



Hydrophilic PTFE 3.0μm



PVDF 10μm



Hydrophilic PVDF 0.22+0.22μm



GF 0.22+0.45μm


SERIES MATERIAL RATING(μm) LENGTH(in) SEAL SUPPORT
D-HFA PP 0.45μm 20'' Silicone PP

GF 1.0μm 30'' EPDM GF

PBT 5.0μm 40'' Butyronitrile PBT

304 10μm 60'' Viton Outer Cage

316L



SERIES MATERIAL RATING(μm) LENGTH(in) SEAL SUPPORT
D-HFA PP 0.45μm 20'' Silicone PP

GF 1.0μm 30'' EPDM GF

PBT 5.0μm 40'' Butyronitrile PBT

304 10μm 60'' Viton Outer Cage

316L




SERIES MATERIAL RATING(μm) LENGTH(in) SEAL SUPPORT
HFA PP 0.45μm 20'' Silicone PP

GF 1.0μm 30'' EPDM GF

PBT 5.0μm 40'' Butyronitrile PBT

304 10μm 60'' Viton Outer Cage

316L




What certifications do Loong Filtration company and filter cartridge hold?

Our products are tested and certified by authoritative agencies, complying with ISO, FDA, ROHS, and GMP standards where applicable. Certificates are available on our website.


What is the benefit if you use loong filtration filter cartridge in Life Science industry?

LOONG Filtration’s solutions are deeply integrated across key stages of drug development and production.Our filtration materials are FDA-compliant and meet USP biosafety standards, while our cleanrooms adhere to ISO 9001 and GMP guidelines. We empower you to accelerate process scaling, shorten time-to-market, boost production efficiency, and cut costs—turning scientific breakthroughs into life-changing therapies faster.


What are the materials that are used in the construction of filter media or membrane?

Cotton, cellulose, glass fiber, polypropylene, nylon, polyphenylene sulfide (PSS) and a variety of polymeric materials are used in the construction of filter media or membrane. 


How can Loong Filtration ensure the quality of products?

Loong Filtration has sent our products to authoritative organizations to do tests, and you can check all the certificates on our product quality page.


Do you provide technical support and training?

Absolutely. Our engineers offer ongoing support, installation guidance, and training to help you maximize filter performance and operational efficiency.


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Have a quiry? Contact us now and we'll get back to you promptly.
INQUIRY
A SPECIALIST IN FILTRATION EXCELLENCE!
CONTACT US
 Tel: +86-571-26232618
 WhatsApp: +8619558243921
 Email:
sales@loongfiltration.com
Address: 19.Building 12, No. 42, Tianhe Road, Donghu Street, Linping, Hangzhou, Zhejiang,P.R. China

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