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Polyimide P84 Filter Bag

Our Polyimide P84 Filter Bag is 100% made of P84 polyimide fiber which has extraordinary filter and heat resistance function.  It is widely used in waste innceneration.

Manufacture Process

Filter Application

Packing & Delivery

Technical Data

Features & Benefits

How to Order?

  • Our imported high tech fully automatic Polyimide P84 Filter Bag production line, which guaranteed your production efficiency, felt quality and lowered product cost
  • All our P84 Polyimide fiber are imported, and stored in good dry place, all our P84 needle punched felt can have its best filtration efficiency 

Polyimide P84 Filter Bag Application

1. Chemicals Processing: Dryers in the pigment, plastic, and catalyst industries.

2. Minerals Processing: Dryers and finish mills in the cement industry.

3. Waste incineration etc



1. Packing can be customized, normally we pack Polyimide P84 Filter Bag by carton

2. ETD: 10-15 days after receiving your deposit for P84 filter bags;

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


Specification for Polyimide P84 Filter Bag

Fiber Content:100% P84 fiber
Felt Construction 100% imported P84 fiber
Continuous Operating Temperature:240°C
Scrimwith polyimide p84 staple yarn
Maximum Surge Temperature:260°C
Acid Resistance:Excellent
Alkali Resistance:Good
Breaking Strength
Machine Direction:1000 N/5 cm
Cross-Machine Direction:1100 N/5 cm
Air permeability(L/m2.s)150~300
Working lifetime8000 hours and more

Polyimide P84 Filter Bag Features 

1. Max. operating temperature: 240℃; Ultimate temperature: 260℃

2. Due to it’s leaf-shaped cross section, It’s 80% increase in filtration area than others filter Media.

3. The properties of Hydrolytic and Oxidation resistance are moderate. We suggest the water vapour content less than 35%Vol and O2 content less than 16%Vol.

4. Oxysulfide will shorter the service life of Polyimide P84 Filter Bag, the suggestion content of oxysulfide should be less than 700mg/Nm3; the waste incinerator should have the desulfurizing unit.

5. 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. 

6. Finishing treatment: P84 needle punched felt can have differenet final finishings as well, anti static, PTFE coating, PTFE membrane, PTFE impregating, water and oil proof; most importantly, now we also have fire resistance function.

p84 polyimide filter bags

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 P84 polyimide Filter Bag for your application.

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