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PTFE (Teflon) Membrane Filter Bag

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  • YBFT

  • Pharma&Biotech, Fine Chemical

  • Filter Bag

  • PTFE

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High-Efficiency Non-Aging PTFE (Teflon) Membrane Surface Filter Bag for Extreme Conditions


This series of PTFE (Teflon) Membrane Surface Filter Bag features a laminated microporous PTFE membrane that delivers true surface filtration with over 99.99% efficiency. The smooth, non-stick surface ensures easy cleaning and low pressure drop while providing unmatched chemical resistance across pH 1–14 and high-temperature stability. With superior tensile strength and no aging effect, these bags offer significantly longer service life than traditional PPS or fiberglass alternatives, even under extreme process conditions.


APPLICATIONS

• Harsh Chemical Process Filtration: Used for precision filtration and recovery of high-risk chemicals like strong acids, alkalis, and aggressive solvents.

• High-Temperature Flue Gas Filtration: Ideal for dust removal in high-temperature and corrosive gas streams from coal-fired boilers, cement kilns, and waste incineration.

• Pharmaceutical & Food Industry: Used for filtering compressed air, process gases, and solvents where utmost purity and compliance with strict hygiene standards are required.

• Product Recovery & Collection: Highly efficient in recovering valuable fine powders in industries such as carbon black, pigment, and powder coating production.






BENEFITS  OF PTFE (TEFLON) MEMBRANE SURFACE FILTER BAG 

 True Surface Filtration with High Efficiency

The non-stick PTFE membrane acts as a primary dust layer, achieving near-zero emissions (>99.99% efficiency) and allows for easy, complete cleaning with stable resistance.

 Exceptional Chemical Inertia & Temperature Resistance

Withstands corrosion from nearly all chemical media within a PH range of 1-14 and maintains stable performance at elevated temperatures.

 Superior Hydrophobicity and Anti-Aging

The PTFE material is extremely hydrophobic, resistant to hydrolysis, and does not suffer from strength degradation over time, ensuring a very long service life.

 Low Pressure Drop & High Air Permeability

The uniformly distributed micropores provide high filtration precision with a low initial pressure drop, reducing system energy consumption.



MATERIALS OF CONSTRUCTION

Material
PTFE
Seal PP/PE/Nylon/SS304/SS316L/Galvanized



SERIES MATERIAL RATING(μm) SIZE LENGTH(in) SEAL LAYER
Phamarmical PTFE 1.0μm φ180X430 2.5'' PP Single
Chemical
3.0μm φ180X810 5'' PE Double


5μm φ105X230 10'' Nylon


50μm φ105X380 20'' 304



φ150X560 30'' 316L



None Stand 40'' Galvanized
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's the service life of the filter cartridge?

The service life of the filter cartridge is affected by the use environment, frequency of use, the original media state, and the type of filter cartridge. Please provide us with more detailed information and our technical team will help evaluate it.


Can your filters handle high-temperature or corrosive environments?

Yes, we offer filter cartridges made from PTFE, PES, stainless steel, and other materials resistant to high temperatures, acids, alkalis, and aggressive chemicals.


What is the difference between surface filtration and depth filtration?

In surface filtration, a filter with a uniform pore design, traps contaminants that are larger than the pore size of the media. In depth filtration, the contaminants are trapped at multiple levels within the filter because of the tapered pore structure of the depth filters.


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.

 

Is one-stop shopping at LOONG filtration possible?

LOONG Filtration is dedicated to provide one-stop shopping experience, to simplify customers' purchasing process. We have a wide variety of products covering a wide range offields, so we believe you can find what you need.


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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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