Product Introduction
FILTER BAG FUNCTION
When the dust gas through the filter bag. The dust will be block on the filter bag surface. The clean gas will pass away. So we can say that,The filter bag is the core of the dust filter. Or, you can consider it as the lung in our body.
Performance Data
| Filter bag material | Working temperature | Chemical properties | Application 1Â | Â Application 2 |
| Polypropylene needle felt | up to 90 degree | Good for Acid and Alkali gas | Grain | High chemical gas and less temperature |
| Polyester needle felt | Up to 130 degree | Good for Acid and nomal for Alkali | Every Dust Collection | Temperature lower than 130 degree |
| Acrylic needle felt | Up to 130 degree | Good for Acid and Alkali gas | Every Dust Collection | Chemical stronger than polyester suitalbe |
| Nomex needle felt | UP to 200 degree | Good for Acid and nomal for Alkali | Asphalt | Cement dust |
| PPS (Polyphenylene Sulphide) Needle felt | Up to 190 degree | Good for Acid and Alkali gas. Bad for Oxygen | Coal fired dust gas | Sulphur |
| P84 (Polyimide) Needle felt | Up to 240 degree | Good for Acid and Alkali gas | Incineration | Temperature lower than 240 degree |
| PTFE (Polytetrafluoroethylene) needle felt | Up to 260 degree | Good for Acid and Alkali gas | Mixed Chemical gas | Temperature lower than 260 degree |
| Glass fiber woven bulk yarn | Up to 280 degree | Good for Acid and Alkali gas | Cement kiln | Coal fired dust gas |
| Glass fiber mixed needle felt | Up to 280 degree | Nomal for Acid and Alkali gas | Acid gas | Temperature lower than 280 degree |
FILTER BAG REQUIRED STRICT SEWING TECHNOLOGY
The filter bag has the strict requirements on design, filter material cutting, woven technology etc. These requirements are very important for the filtration operation, maintenance and even the service life of the bag filter.
Please see our  picture poster as following:
FILTER BAG SPECIFICATION
The diameter of the filter bag should around 115 mm diameter to 200mm diameter.  The filter bag length should 2000 - 9000mm, the specifications of the commonly used filter bag is 125 - 170 mm diameter,  2000 ~ 6000mm length.The oval, flat, envelope and support ring types of filter bag, please be sure to enquiry for us with detailed information. After then, we should begin to processing. We will make the filter fabric first.
After then, we will sewing the filter fabric into the filter bag. For more detailed information, please reference the above processing picture. 
When we finish the manufacture, the filter bag should begin to rechecking. As you know, even if one filter bag broken. It will be the 100% result for the dust filter equipment bad working. So, it is our the most important step for all. We must assure it can work correctly 100%. Not 99.9 or 99.99%. We must assure it 100% correctly. We must assure it 100% corrctly!. The important things three times....
Company Information
CNP Co., Ltd. was founded in 2008, specializes in the field of air pollution control and bag filters. Including engineering design, planning, consulting, equipment research and development, manufacturing, sales, installation and commissioning, as well as production and services.
Based on the high starting point, CNPÂ Co., Ltd., with a positive and upward pioneering spirit, will further create brilliancy as to technological innovation, intellectual property rights and independent brand strategy.
Our ServicesIt is appreciated that provide us more information when you enquiry, thanks!
1. Enquiries quickly reply within 24 hours.
2. After-sales service, rapid response, the engineer installation guide. The feedback problems will be replied within 24 hours. If any problem, We will arrange professional engineers within 48 working hours to solve it.
3.We have good faith principle. we will sure the products is high quality before shippment.