P84 Filter Bag

Material: 100% PI (Polyimide)  
Operating Temperature: 240°C to 260°C.  
Operating Conditions: The P84 filter bag (PI - Polyimide) is used in dust filtration systems/dry dust recovery systems, with good resistance to oxidation and hydrolysis, but moderate resistance to acids and alkalis, and excellent performance at high temperatures.  

At VIFICO, customers will be supported with surveys, advice, and free sample provisions.  
All dust filter fabric is imported 100% from reputable, quality suppliers, carefully selected. VIFICO provides full import documents including CO and CQ.  
The dust filter bags are produced on a European standard technology line, achieving a capacity of over 20,000 products per month with a team of experienced workers in the industry.

P84 FILTER BAG (Polyimide)  


Characteristics of the P84 filter bag  
The P84 filter bag (Polyimide) is made from non-woven dust filtering fabric, capable of withstanding temperatures from 240°C to 260°C, with high abrasion resistance, good oxidation resistance, good hydrolysis resistance, and moderate acid and alkaline resistance.  

P84 (Polyimide) is applicable for working conditions with corrosive gases, such as in the chemical, metallurgical, waste incineration, cement, and coal-fired boiler industries.  

Examples:  
- The P84 dust filter bag effectively recovers and processes industrial dust at high temperatures.  
- For highly adhesive dust, the P84 dust filter bag is treated with a moisture-resistant surface.  
- For fine dust <2.5 microns, which is acidic or alkaline and requires low emission concentrations, the P84 filter fabric should be made from fibers with small diameters, fabric weight from 550 - 600g/m², with PTFE membrane treatment...  

Applications of the P84 filter bag  
In Vietnam, the P84 filter bag can be used in all industries generating dust at certain positions or throughout the entire production process, such as:  
- Construction materials industry: Cement, Steel, Gypsum, Ceramics...  
- Mining and mineral processing industry: Limestone powder, Sand, Glass, Aluminum, Non-ferrous metals...  
- Animal feed and food industry, Pharmaceuticals, Tobacco  
- Other industries: Wood, Fertilizers, Batteries, Tires, Plastics, Waste treatment, Boilers, Thermal power, Hot asphalt, Chemicals...  

Some types of P84 filter bags and common sizes:  
Specifications for P84 filter bags: Cylindrical bags, round bottom, mouth (round stainless steel ring, flat elastic stainless steel, felt, folded edge with a collar, ribbon tabs...)  

Sizes of P84 filter bags:  

- Diameters: D110mm, D115mm, D120mm, D125mm, D130mm, D133mm, D135mm, D140mm, D148mm, D150mm, D155mm, D160mm, D165mm.  

- Length: 1000mm, 1200mm, 1500mm, 2000mm, 2500mm, 3000mm, 3500mm, 4000mm, 5000mm, 5500mm, 6000mm, 8000mm.  

- Some common sizes of P84 dust filter bags today: D130x1500 mm, D130x2000 mm, D135x2500mm, D140x3500 mm, D155x6000 mm  

Technical specifications of P84 filter fabric - production of P84 filter bags

Construction Needle punch felt
Fiber Composition 100% PI (Polyimide)
Scrim Composition PTFE
Felt Area Weight (g/m2) 500, 550, 600
Thickness (mm) 2.0 - 2.1 mm
Mean Air Permeability (L/m².S@200Pa)  200 - 300
Breaking Strength-MD/warp (N/5x20cm) 900
Breaking Strength-CMD/weft (N/5x20cm) 1200
Shrinkage at 260oC within 90 min (%) <1.0
Operating Temperatures
Recommended Maximum Continuous (oC)
240
Recommended Maximum Surge (oC) 260
Finish Heat set, singed, calendared W/O Repellent, Membrane PTFE.

PROJECT IMAGE