High-Temperature Polyimide Media for Sub-Micron Particulate
The P84 Filter Bag is a high-performance industrial filtration media manufactured from polyimide fibers. Operating continuously at temperatures up to 260°C (500°F), its defining advantage lies in the microscopic structure of the fiber itself. Unlike standard round fibers found in polyester or Nomex, P84 fibers feature a unique trilobal (multi-lobed) cross-section. This irregular shape increases the effective filtration surface area by up to 80%, trapping sub-micron dust directly on the surface of the bag rather than allowing it to penetrate deep into the felt. This makes P84 the premier choice for waste incineration and chemical processing where capturing ultra-fine, highly toxic particulate is critical.
Featured Model Configurations
P84-102 | Chemical Plant Abatement
Composition: P84 + PTFE Lamination | Temp Rating: 260°C | Surface Treatment: PTFE Coating
Provides maximum acid resistance and near-zero emissions for fine chemical processing and highly acidic flue gas.
P84-105 | Coal Combustion Exhaust
Composition: P84 + PPS Blend | Temp Rating: 260°C | Surface Treatment: Anti-Static
Designed to safely handle potentially explosive fine coal dust while resisting the high sulfur content typical in coal-fired power plants.
Key Technical Specifications
500–600 g/m² polyimide needle felt with a standard thickness of 1.8–2.4 mm.High tensile strength (Warp >1000 N, Weft >1200 N) ensures stability during aggressive pulse cleaning. Air permeability ranges from 100 to 400 L/m²/s (@200Pa), depending on the specific blend and surface treatment, while maintaining ≥99.9% filtration efficiency.
Why Choose P84 Filter Bags?
Choose SENOTAY P84 Polyimide Filter Bags if your facility requires ultra-high fine-particle capture (≥99.9%) and low operational pressure drop under severe thermal and acidic conditions, such as in waste incinerators, cement kilns, and power plants.
Trilobal Micro-Fiber Structure: Features an irregular, multi-lobed fiber cross-section that expands effective filtration surface area by up to 80%, trapping sub-micron particulates at the surface and preventing depth penetration.
Continuous High-Temperature Endurance: Handles demanding environments with continuous operating temperatures up to 260°C and short-term peak resistance up to 280°C.
99.9% Particulate Efficiency & Low Pulse Energy: Surface-loading capability ensures maximal dust shedding during pulse cleaning cycles, maintaining low residual pressure drop and minimal emissions.
Robust Hydrolysis & Acid Gas Resistance: Polyimide polymer construction withstands moist, acidic flue gases (SOx) far better than standard synthetic felts like Nomex or polyester.
Custom Blends & Surface Finishes: Available in 100% P84 needle felt or reinforced with PTFE membranes, fiberglass backings, anti-static fibers, and chemical coatings tailored to specific baghouse gas streams.
Why Leading Plants Choose SENOTAY P84 Filter Bag
Factory-Direct Pricing. Certified Quality. Dedicated Support.
Best Price Guarantee
Certified & Compliant
Fast, Reliable Delivery
Comprehensive After-Sales Support
Lifetime Technical Support: Expert assistance with air-to-cloth ratios, structural cage profiling, gas chemistry evaluation (checking $SO_x$ and moisture thresholds), and media compatibility for the lifespan of your dust collector.
Full System Availability: Immediate access to matching heavy-duty galvanized, epoxy-coated, or stainless steel filter cages (including star-ring and multi-section configurations).
Remote Troubleshooting: Fast diagnostics to resolve differential pressure alarms, premature chemical hydrolysis issues, or localized abrasive wear.
Trusted by high-efficiency industrial plants worldwide. Ready for yours.
Main Features & Properties of P84 Filter Bag
Continuous operating temperature: up to 260°C
Peak temperature resistance: 280°C
Exceptional acid and hydrolysis resistance
High filtration efficiency (≥99.9%)
Stable performance under moist and acidic conditions
Excellent fine dust capture due to irregular fiber cross-section
Low residual dust after pulse cleaning
Technical Advantages in Manufacturing P84 Filter Bags
Senotay, a leading P84 filter bag manufacturer, combines European-grade fiber materials with precision engineering and automated production for superior bag performance.
Key Manufacturing Advantages:
Advanced needle-punching technology ensuring consistent density and airflow
Multi-layer composite lamination for enhanced chemical and mechanical durability
PTFE or fiberglass blending options to improve temperature and acid resistance
Customized fabrication for any baghouse system or waste incineration filter unit
Rigorous quality inspection and permeability testing to meet global emission standards
Types of P84 Filter Bags- We provide
Type No. | Composition | Operating Temp (°C) | Surface Treatment | Application Area |
P84-101 | 100% P84 fiber | 260 | None | Waste incineration |
P84-102 | P84 + PTFE membrane | 260 | PTFE coating | Chemical plant dust collection |
P84-103 | P84 + fiberglass | 250 | Graphite finish | Cement kiln |
P84-104 | P84 + Nomex blend | 240 | Silicone coating | Power plant |
P84-105 | P84 + PPS blend | 260 | Anti-static | Coal combustion |
P84-106 | P84 + PTFE lamination | 270 | Dual layer | Biomass furnace |
P84-107 | P84 + aramid base | 260 | Oil & water repellent | Petrochemical plant |
P84-108 | 100% P84 felt | 260 | Heat-set finish | Waste treatment |
P84-109 | P84 + glass composite | 280 | Acid-resistant coating | Metal smelting |
P84-110 | P84 + acrylic blend | 250 | Alkali-resistant | Fertilizer industry |
Physical & Mechanical Properties of P84 Filter Bag
Property | Value |
Continuous Temperature | 260°C |
Peak Temperature | 280°C |
Air Permeability | 100–180 L/m²·s @ 200 Pa |
Tensile Strength | > 2600 N (warp), > 2200 N (weft) |
Elongation | < 20% |
Filtration Efficiency | ≥ 99.9% |
Thickness | 2.0–2.4 mm |
Weight | 500–600 g/m² |
Industries Using P84 Filter Bags
Cement and Asphalt Mix Plants
Power Plants (coal-fired, biomass, and thermal)
Metallurgical Industry
Waste Incineration Plants
Chemical and Refinery Processing Units
Smelting and Foundry Processes
Pharmaceutical and Industrial Kilns
The P84 filter bag’s outstanding efficiency, thermal endurance, and longevity make it a preferred choice for fine particulate filtration in modern pollution control systems.
Specification of P84 Filter Bag
product name: | P84 dust filter bag |
Fiber Type | Polyimide fiber |
Weight (g/ ㎡ ) | 500±10 |
Thickness(mm) | 1.8-2 |
Tensile strength (N/5×20cm) | vertical | >1000 |
Weft | >1200 |
Air permeability (L/m2/s·200pa) | 200-400 |
Recommended operating temperature (℃) | ＜204 |
Instantaneous operating temperature (℃) | 240 |
Surface treatment process | PTFE coating
|
Model No. | Temperature Range (°C) | Finish Type | Air Permeability (L/m²·s) | Efficiency (%) |
P84-201 | 220–260 | PTFE | 150 | 99.9 |
P84-202 | 230–270 | Graphite | 140 | 99.8 |
P84-203 | 240–260 | Silicone | 160 | 99.7 |
P84-204 | 230–250 | None | 180 | 99.5 |
P84-205 | 250–270 | Acid-resistant | 140 | 99.9 |
P84-206 | 230–260 | Alkali-resistant | 130 | 99.8 |
P84-207 | 250–270 | Dual coating | 120 | 99.9 |
P84-208 | 260–280 | Anti-static | 130 | 99.8 |
P84-209 | 240–260 | Oil-repellent | 150 | 99.8 |
P84-210 | 250–280 | Composite PTFE | 110 | 99.95 |
▪ Dust Filter Bag
▪ Polyester Filter Bag | FMS Filter Bag | Basalt Filter Bag | Nomex Filter Bag |
PTFE Filter Bag | Acrylic Filter Bag | Fiberglass Filter Bag | P84 Filter Bag | PPS Filter Bag
▪ Dust Collector Bag Cage
▪ Dust Collector Bag Cage | Galvanized Bag Cage | Silicone Bag Cage | Trapezoidal Bag Cage | Envelope Bag Cage | Cage Venturi Tube
▪ Dust filter element
▪ Air Filter Element | Top-mounted Dust Filter Element | Oblique-insert Dust Filter Element |
Lifting Dust Filter Element | Six-Ear Quick-release Dust Filter Element | Threaded Dust Filter Element | Flange Dust Filter Element
▪ Electromagnetic pulse valve
▪ DMF-Z Right Angle Solenoid Pulse Valve | DMF-Y Submerged Electromagnetic Pulse Valve
▪ Industrial Electric Precipitation Accessories
▪ Cathode Wire | Dust Collecting Plate | Vibrating Hammer | Bearing In Dust | Electrostatic Precipitator Porcelain Sleeve
Q&A Section
Q1: What is a P84 filter bag used for?
Ans:P84 filter bags are designed for high-temperature dust collection and flue gas purification, especially in waste incineration plants, cement kilns, and chemical industries.
Q2: Why is P84 material preferred for industrial filtration?
Ans:Because of its high-temperature stability, acid resistance, and unique trilobal fiber shape, which increases surface area for superior dust capture efficiency.
Q3: How long does a P84 filter bag last?
Ans:Typically, 3–5 years under optimal conditions, depending on the application and cleaning system.
Q4: Can P84 filter bags withstand moisture and acid gases?
Ans:Yes. P84 fiber provides excellent resistance to hydrolysis and acidic exhaust gases, making it ideal for waste incineration and chemical process filtration.
Q5: Can P84 filter bags be customized?
Ans:yes,Obviously. Senotay (Hebei OuTai Environmental Protection Equipment Co., Ltd.) offers custom diameters, coatings, and blends (P84 + PTFE, P84 + Nomex, etc.) to match your specific operating conditions.
