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PTFE Filter Bag

PTFE filter bag is perfect among all the felt filter bags; it is a high grade product of filter bag. PTFE filter bag has the best chemical resistance property meanwhile it also has the good performances of filter efficiency. Working life can reach 6 years in the normal working condition.

More details


Manufacture Process

Filter Application

Packing & Delivery

Technical Data

How to Order?

PTFE Filter Bag Details

Fabric: PPS fiber (polyphenylene sulfide)
Temperature resistance: up to 200℃ (392℉)
Area weight (g/m2): 350~700
Thickness (mm): 1.2~2.4
Filtration precision: ≤30mg/nm3
Working lifetime: 8000 hours and more
Diameter & Length: No limited

Surface Treatment of PTFE Filter Bag

There are 2 kinds of treatment : "PTFE film" and "PTFE dipping"

PTFE film: Improve filtration precision: ≤5gsm/Nm3, but lower the filtration efficiency; and a substantial increase in acid-base resistance property

PTFE dipping: Improve filtration precision: ≤25gsm/Nm3, does not lower the filtration efficiency; and a small increase in acid-base resistance property

  • Our imported high tech fully automatic production line for PTFE Filter Bag, which guaranteed production efficiency, felt quality and lowered product cost for filter bags

Features of PTFE Filter Bag

1. Excellent temperature resistance: up to 280℃ (572℉)

2. Extremely long working life. Service life can reach 6 years at the temperature 66℃~240℃ and normal working conditions.

3. Excellent performance of anti-acid and anti-alkali resistance

4. Excellent filter efficiency for PTFE Filter Bag

5. Good performances of hydrolysis stability and flame retardant

6. Suitable using on various power plant boiler and waste incineration boiler. The weakness is poor folding property and higher price.

7. Available in various fabric weights and treatments such as singed, glazed, PTFE, anti-static, fire-retardant, oleo-phobic, acid resistant and more.

 8. Configurations (bag construction) include snap band top, A-hanger, raw edge, grommet, cord, loop, strap, disc bottom, disc wear-strip, flange, hem, sewn flat, envelope, compression cap, and more.


1. Power Generation and Incineration: Medical, municipal, industrial, sewage sludge, biomass, and hospital waste incineration, as well as coal-fired boilers.

2. Chemicals Processing: Dryer offgas filtration under chemi-cally or thermally demanding conditions.

3. Metals Industry: Lead, copper, and other base metal production.

4. Minerals Industry: Brick and light-weight aggregate kilns.

PTFE Filter Bag Packing&Delivery&Payment

1. Packing can be customized, normally we pack by polybag

2. ETD: 10-15 days after receiving your deposit;

3. Payment terms: 30% deposit, balance against copy of documents;

4. Payment can be made by L/C,T/T;


Order Amount(USD)



50% Deposit the balance 50% will be against the copy of B/L


30% Deposit the balance 70%will be against the copy of B/L


 5. MOQ: 500pcs

 6. Transportation: We can recommend the most economic way of logistics, including maritime, land, air and other ways, designated forwarder also accepted.

Technical Data of PTFE Filter Bag

Weight700~800 g/m2 
Fiber Content:Staple – Expanded Polytetrafluoroethylene
Scrim – Woven Expanded Polytetrafluoroethylene
Felt Construction:Supported Needlefelt
Continuous Operating Temperature:260°C
Maximum Surge Temperature:270°C
Acid Resistiance:Excellent
Alkali Resistance:Excellent
Breaking Strength
Warp:1000 N/5 cm 
Fill:1100 N/5 cm 
Mullen Burst:2758 kPa (400 psi) min
Thermal Stability:< 2% shrinkage at 260°C (500°F) after 2 hours (unrestrained)
Durability:12000 hours and more

Pulse-Type PTFE Filter Bags

1. Sewn-in Circular Disc Base
2. Sewn-in Circular Disc Base with Bumper Cuff Reinforcement
3. Snap Band Top to Fit
4. Flange Top with Wire Ring
5. Plain Open Top
6. Open Top with Cuff and Cord

How to business with us?

1. What you need to do?

You just need to tell us your all your working conditions in through details:

  • Size, material you want;
  • The former filters you use;
  • Your working conditions;

All the next jobs will be done by us:

2. What we offer?

  • Quick response
  • Quick delivery& Competitive price& stable fine quality
  •  Professional technical and commercial suggestions provided by experienced staff.
  • Custom-made design
  • Free samples is accepted if you write to us.
  • The filtration accuracy and efficiency you want to achieve;
  • Meet clients demand for controlling dust emission
  • Meet clients’ expectation of long working life
  • Meet requirement for high cost performance

We are passionate about what we do and we do things right. Contact us, let us help you choose the most economical 

PTFE Filter Bag for your application.

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