Acid Resistant Filter Bag for Reverse Air Dust Collector
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Acid Resistant Filter Bag for Reverse Air Dust Collector

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Manufacturing Filter bags at Hongyuan Envirotech

Our fiberglass filter cloth is of exceptional quality. Through a pretreatment process and heat-set processing, the filter cloth achieves excellent physical and chemical properties. The surface of the filter bag requires acid-resistant impregnation and a membrane treatment.

The acid resistance filter bag has a lot of good features such as temperature resistance, corrosion resistance, flexibility, and easy ash cleaning. This greatly extends the service life of the filter bag. Our modified Silica oxygen is an extremely effective filtering material.

Product Specifications:

(1) High filtration accuracy

The membrane laminated fabric has small and uniform micropores (0.10-2.0 m), effectively separating all dust particles larger than the micropore diameter.

(2) Lightweight and flexible, easy ash removal

The filter material has a thickness of 0.8mm, making it easy to remove dust. It requires low ash cleaning pressure and fewer cleaning cycles, resulting in cost savings for operations.

(3) The filter bag has a high strength and minimal elongation, ensuring its stability in size. It remains unaffected by high temperatures and does not shrink.

(4) The filter bag exhibits exceptional temperature resistance. It can operate continuously from the acid dew point up to 260℃, with an instant temperature resistance of up to 280℃.

(5) The filter bag is resistant to oxidation and corrosion. It will not oxidize when exposed to oxygen or nitrides, and it demonstrates outstanding corrosion resistance.

(6) The filter bag has excellent resistance to folding. Its base material is woven using ultrafine silicon oxygen fibers, ensuring a long service life for the filter material.

(7) The base material of the filter bag has undergone a water-repellent and oil-proof treatment, making it suitable for working conditions with high moisture content. After application testing, it has achieved a water-repellent grade of no less than 4.5.


Suitable for use in cement plants, steel plants (blast furnace gas, coking, converter, lime kiln), and biomass facilities.

Reverse air filter bags

• Made of woven fiberglass fabric (Regular weight 340g/m2 or 450g/m2)

• Regular bag diameter: 292mm, 300mm

• Regular bag length: 9000mm-13000mm

• Emission: 5mg/Nm3, 10mg/Nm3, 20mg/Nm3

• Produced with quality snap band, ring and sewing thread

• Shortest delivery time because of big production capacity

• Customized and developed products as customer’s request

• Long service life time

Why choose Hongyuan Envirotech’s filter bag?

1. 20 years’ Experience

More than 20 years’ experience in industrial filtration and filter bag manufacturing.

2. R&D ability

The professional laboratory and R&D staffs make sure Hongyuan Envirotech’s filter bags meet market and application needs.

3. Market Leader

No matter filter material roll goods or filter bags, Hongyuan Envirotech is well recognized by the market and customers

4. Whole industry chain production

Hongyuan Envirotech manufacture all products in a continuous process chain: Raw material – Filter material – Filter bag – service.

5. Technical support

Experienced technical team give professional advice and guidance from material selection to operation and maintenance.

6. Full service

We can supply all customers’ requested service like installation, commissioning, maintenance and repair.


Q1. What is the packing way for filter bags?
A: Standard export packing with plastic bag, carton box and plywood pallet.


Q2. What’s the MOQ for each type?  
A: No problem to supply small quantity.


Q3. Is it possible to get free sample?
A: Yes. Free sample can be provided by us.


Q4. What about the delivery time?
A: For regular order, within 4 weeks. It depends on the items and the quantity of the order.


Q5. Can you special customized products?
A: Yes, we can design and produce according customer’s request or sample.

2X7A8701微信图片_2017051813450410 成品检验


For more than 20 years, Hongyuan Envirotech Co., Ltd. has been a leading manufacturer of filter material and filter bags for dust filtration industry. Hongyuan Envirotech has been committed to providing customers best filter material with comprehensive cost performance.

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 No.105, South of Binhai Road, Xishi Dist, Yinkou, Liaoning, China
 +86-150-4179-9965
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