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Polyamide (PI/P84) Dust Filter Bags

Using the finest fiber material possible in the market and high-speed modern needling equipment, we manufacture our own filter media for our dust filter bags guaranteeing the highest quality, reliability, and consistency

A wide range of surface finishes and chemical treatments that aid in the collection and release of the dust from the bags

Ultrasonic welded seam for increased efficiency and reinforced mechanical strength

Our laboratories are equipped with sophisticated testing equipment used to analyze and evaluate all aspects of your process and application

Custom fabricated bag designs to meet the unique needs of your bag house installation

Quantity:

High termperature needle punched felt
 

Non-flammable and thermostable organic fiber
 

Offers extended bag life in low pH applications
 

helps reduce differential pressure across the baghouse
 

Operates in high temperature applications against acid attacks and is resistant to flex abrasion (unlike Fiberglass).
 

Not recommend for high concentration of alkalis at high temperatures. 
 

Continuous operating temperature 460oF (240°C)

Fiber Materials PI-Polyimide PI-Polyimide PI-Polyimide Polyimide + Aramid
Scrim Polyimide scrim Fiberglass scrim PTFE Scrim Polyimide scrim
Standard Finish Options
(Special surface treatments available)
Heat Set, Singed, Glazed, PTFE membrane (or PTFE bath)
Weight
oz/yd² (g/m2)
14.75-17.70 (500-600) 23.60-26.55 (800-900) 14.75-17.70 (500-600) 550

Thickness
   Inch (mm)
0.075-0.091 (1.9-2.3) 0.098-0.12 (2.5-3) 0.075-0.091 (1.9-2.3) (2.3-2.7)
Air Permeability
 CFM@ ½" W.G125PA
 (m³/m².min@200PA )
27-33 (13-16) 22-33 (10-16) 6-10 (3-5)
  Tensile Strength
 lb/in (N/5CM)
Warp MD  69 (600) 205 (1800) 69 (600) >900
Weft CD 91 (800) 205 (1800) 91 (800) >1200
Tensile Elongation (%) Warp MD  ≤25 ≤10 ≤25 <35
Weft CD ≤45 ≤10 ≤45 <50
Burst Strength(Mpa/min) 2.4-2.55 2.95-3.2 2.4-2.55 2.4-2.55
Thermal Shrinkage (%) at max continuous temp. Warp MD  ≤1 ≤1 ≤1 ≤1
Weft CD ≤1.5 ≤1.5 ≤1.5 ≤1.5
Max. Operating Temperature  oF (oC) Continuous 465 (240) 465 (240) 465 (240) 465 (240)
Surge 500 (260) 500 (260) 500 (260) 500 (260)
The data are based on laboratory conditions. 
Testing based on specific operating conditions of each installation is recommended.

Comprehensive selection of bag sizes:
 

Diameter: 4 5/8” – 113⁄4”
 

Length: 12” – 144”
 

Customized sizes are also available

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