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