P84 Filter Bags are high-temperature filtration media made from polyimide fibers developed by Evonik Industries (Germany). Designed for extreme industrial environments, they achieve >99.99% filtration efficiency on sub-micron particles while maintaining low pressure drop.
Our High-Temperature P84 Filter Bag is specifically engineered for demanding industrial environments where temperatures reach up to 260°C (500°F). Made from premium-grade P84 fibers, these bags offer exceptional filtration efficiency, chemical resistance, and durability. The unique三叶形 cross-section of P84 fibers provides increased surface area for improved dust capture and easy cleaning, making it ideal for applications with high dust loads and challenging operating conditions.
Product Advantages
Exceptional high-temperature resistance up to 260°C (500°F)
Unique三叶形 fiber cross-section for increased filtration efficiency
Excellent chemical resistance to acids, alkalis, and oxidizing agents
Low moisture absorption for stable performance in humid environments
High dust release efficiency for reduced cleaning energy and longer service life
Available in various configurations to suit different baghouse designs
Customizable with PTFE membrane lamination for enhanced surface filtration
Filtration Efficiency: Up to 99.99% for particles >0.5μm
Air Permeability: 10-25 m³/m²/min (at 200Pa)
Production Capacity
Daily Output: 3,000-5,000 pieces, depending on specifications
Standard Sizes: Diameter 130mm-160mm, Length 2m-6m (custom sizes available)
Key Applications
Ideal for high-temperature industrial filtration applications:
Power Plants
Cement Kilns
Steel Sintering
Waste Incineration
Product Specifications
Standard Sizes
Diameter: 130mm, 150mm, 160mm; Length: 2m-6m
Weight
500-800 g/m²
Moisture Absorption
≤3%
Surface Treatment
PTFE membrane, singeing, calendering
Tensile Strength
Longitudinal ≥800N/5cm, Transverse ≥600N/5cm
Temperature Resistance
Continuous: 260°C (500°F), Peak: 280°C (536°F)
Operation Guide
1
Pre-installation Inspection
Inspect the P84 filter bags for any signs of damage during shipping or storage. Check the dimensions to ensure compatibility with your baghouse. Verify that the operating temperature and chemical environment are within the recommended limits for P84 material.
2
Installation
Handle the filter bags carefully to avoid tearing or damaging the fibers. Ensure proper alignment with the tube sheet and secure the bags tightly using the appropriate clamping mechanism. Avoid over-tightening, which can cause stress on the bags.
3
System Startup
Gradually increase the system temperature to allow the filter bags to stabilize. Monitor the differential pressure across the baghouse to ensure proper operation. Adjust the cleaning cycle as needed based on the initial performance.
4
Cleaning and Maintenance
Establish a regular cleaning schedule using pulse-jet or reverse air cleaning methods. Monitor the pressure drop across the filter bags and adjust the cleaning frequency as needed. Inspect the bags periodically for signs of wear, damage, or chemical degradation, and replace as necessary.
Operation Checklist
Verify compatibility with your filtration system
Ensure proper installation and secure fastening
Monitor system pressure and temperature regularly
Follow recommended cleaning and maintenance procedures
Safety Regulations
Handling Precautions
Wear appropriate protective clothing, gloves, and eye protection when handling P84 filter bags. Avoid inhaling fiber dust by using proper ventilation or respiratory protection. Keep the work area clean to prevent slipping hazards from loose fibers.
Installation Safety
Ensure the filtration system is shut down, depressurized, and cooled before installation or maintenance. Follow proper lockout/tagout procedures to prevent accidental startup. Use appropriate lifting equipment when handling large quantities of filter bags.
High-temperature Safety
Allow the system to cool completely before performing any maintenance. Use heat-resistant gloves and tools when working with hot components. Avoid sudden temperature changes, which can cause thermal stress on the filter bags.
Safety Certifications
ISO 9001:2015
ISO 14001:2015
CE Certification
RoHS Compliance
Technical Parameters
Core Specifications
Product Name
High-Temperature P84 Filter Bag
Model
P84-HT Series
Material
100% Polyimide (P84) fibers
Weight
500-800 g/m²
Thickness
1.8-2.2 mm
Standard Sizes
Diameter: 130mm, 150mm, 160mm; Length: 2m-6m
Surface Treatment
PTFE membrane, singeing, calendering
Air Permeability
10-25 m³/m²/min (at 200Pa)
Chemical Properties
Acid Resistance
Good resistance to most acids except strong sulfuric and nitric acids
Alkali Resistance
Moderate resistance to weak alkalis
Oxidation Resistance
Excellent resistance to oxidation
Moisture Absorption
≤3%
Thermal Characteristics
Temperature Resistance
Continuous: 260°C (500°F), Peak: 280°C (536°F)
Thermal Shrinkage
≤1% at 260°C for 30 minutes
Melting Point
>400°C (752°F)
Mechanical Properties
Tensile Strength
Longitudinal ≥800N/5cm, Transverse ≥600N/5cm
Elongation at Break
Longitudinal ≤30%, Transverse ≤35%
Bursting Strength
≥1000 kPa
GET CUSTOM DUST CONTROL SOLUTIONS Share your project details,
and we'll craft a tailored dust control plan for free
Confused about dust removal equipment? Need to extend filter bag life? Mingkai's tech tips cover selection, maintenance, and policies to help you manage equipment, ensure compliance, and cut costs.
Environmental Equipment O&M Insights
Confused about dust removal equipment? Need to extend filter bag life? Mingkai's tech tips cover selection, maintenance, and policies to help you manage equipment, ensure compliance, and cut costs.
Filter Bag Maintenance: Extend Life, Cut Costs
Regular maintenance of filter bags extends their lifespan and cuts costs by preventing clogs, saving energy, and reducing replacement needs.
Filter Bag Maintenance: Extend Life, Cut Costs
Regular maintenance of filter bags extends their lifespan and cuts costs by preventing clogs, saving energy, and reducing replacement needs.
Efficient Dust Removal: Save Cost & Time
Mingkai's combination of dust filter bags and equipment efficiently intercepts industrial dust, reducing equipment wear - and - tear. Simplify the dust - cleaning process, free up production line space, and help enterprises cut operation and maintenance costs while improving production efficiency. Button: Free Solution Consultation
Efficient Dust Removal: Save Cost & Time
Mingkai's combination of dust filter bags and equipment efficiently intercepts industrial dust, reducing equipment wear - and - tear. Simplify the dust - cleaning process, free up production line space, and help enterprises cut operation and maintenance costs while improving production efficiency. Button: Free Solution Consultation
Custom env solutions for precise needs.
Mingkai customizes dust-removal systems for high-temp coking plants, humid textile workshops, etc., adapting filter bag materials and equipment structures to unique needs.
Custom env solutions for precise needs.
Mingkai customizes dust-removal systems for high-temp coking plants, humid textile workshops, etc., adapting filter bag materials and equipment structures to unique needs.
See How Pollution Problems
Want to know how Mingkai equipment performs in actual working conditions? Browse cases in industries such as chemical and electric power, and learn how enterprises use our dust removal solutions to optimize production lines and solve the problem of coordinating environmental protection and production. Button: View Customer Cases
See How Pollution Problems
Want to know how Mingkai equipment performs in actual working conditions? Browse cases in industries such as chemical and electric power, and learn how enterprises use our dust removal solutions to optimize production lines and solve the problem of coordinating environmental protection and production. Button: View Customer Cases
High dust load & continuous production (e.g., sintering workshop in steel mills)
Choose high - dust - holding filter bags + strong - load cage frames → Reduce bag - changing frequency (cut labor and shutdown losses), stably support production line operation.
Space - constrained & fine dust (e.g., electronics factory grinding workshop)
Choose pleated cartridges + custom brackets → Achieve high - efficiency filtration (precision ≤1μm) in limited space, suitable for low - air - volume, high - precision needs.
Superior to heart
More than 10 precision production line, easy to realize large quantities of goods, to provide you with the best price.
FAQs
Can I test Mingkai's filter bags before purchasing?
Yes. We offer free sample testing for filter bags. You can evaluate filtration efficiency, material durability, and compatibility with your dust - laden airflow in your actual working conditions.
Can Mingkai customize the dimensions of dust bag cages?
Absolutely. Our bag cages support custom - made lengths, diameters, and ring spacings. Just provide your filter housing specs or application requirements, and we’ll tailor the structure for a perfect fit.
Can dust filter cartridges replace filter bags in my existing system?
It depends on your equipment design. If space and airflow allow, we can conduct a free on - site assessment. For systems with limited vertical space, cartridges (with compact structure) are often a viable upgrade option.
What’s the maximum temperature Mingkai's filter bags can withstand?
It varies by material. For example: PTFE bags handle up to 260℃ continuously; Aramid (Nomex®) resists 220℃; For extreme 280℃+ scenarios, we recommend FMS composite materials.
How long does the anti - corrosion coating on dust bag cages last?
Our standard galvanized cages last 3–5 years in general industrial environments. For harsh corrosive conditions (e.g., chemical plants), we offer epoxy - coated or stainless - steel options, extending service life to 8–10 years.
ONE-STOP SERVICE
We are dedicated to a one-stop solution for environmental protection dust collection. Our services cover dust collection system design, production of dust filter bags and cage frames, installation & commissioning, as well as after-sales maintenance, etc.
