Primary bag filter(also named bag primary filter or bag primary air filter),Mainly used for central air conditioning and centralized air supply systems. The primary bag filter is generally used for the primary filtration of the air conditioning system to protect the lower-stage filter and the system itself in the system. In the place where the air purification and cleanliness requirements are not strict, after the primary bag filter treatment Air can be delivered directly to the user. The primary bag filter adopts a new type of composite non-woven bag type, and is equipped with various metal frames (galvanized plate, aluminum plate, aluminum alloy profile). The filter materials generally used are G3 and G4.
The primary bag filter is widely used in central air conditioning ventilation systems, pharmaceutical, hospital, electronics, food and other industrial purification. The primary bag filter can also be used as the front end of the medium efficiency air filter to reduce the medium efficiency air. The load of the filter extends its service life.
The efficiency of the primary bag filter is filtered in G3-G4 (coarse-medium effect area). The material is a special high-strength chemical fiber filter. The outer frame is made of galvanized sheet and aluminum alloy. It is resistant to washing and has low resistance.
Primary effect bag filter material and performance:
1. Frame material: aluminum alloy profile, galvanized frame
2. Bracket: galvanized sheet forming frame
3. Filter material: coarse non-woven fabric
4.Level：G3-G4
5.Sewing method: ultrasonic welding or sewing
6.Maximum use temperature:80℃
Primary bag filter Features:
1. Using new composite non-woven fabric and imported synthetic fiber plus coated reinforcing filter material.
2. Bag shape, with a variety of metal frame, mainly blocking large particles of dust particles.
3. Has passed the VTT test by a third-party authority.
4. It has the advantages of large filtration area, large dust holding capacity and low resistance.
Applicable places: Suitable for environments with relatively low air requirements, ideal for air conditioning systems.
| Chemical fiber bag type primary filter material and operating conditions | ||||||||||||||||
|
Bag type initial effect filter parameter description:
| Specification | Number of bags | Air volume m3 /h | Filtration area m2 |
| 595×595×600 | 8 | 3600 | 4.32 |
| 595×295×600 | 6 | 3400 | 2.16 |
| 595×595×500 | 6 | 3000 | 3.6 |
| 595×259×500 | 3 | 1500 | 1.8 |
| 495×495×500 | 5 | 2000 | 2.45 |
| 495×295×500 | 3 | 1200 | 1.47 |
| 495×595×600 | 6 | 3000 | 3.54 |
| 595×495×600 | 5 | 3000 | 3.54 |
Marks：The bag type primary filter can be customized according to customer requirements!
Reasons for using a primary bag air filter:
The primary bag filter is indispensable for the general ventilation and air conditioning system. It is the main force of filtration. The bag type is mainly used to meet the requirements of high air volume and low resistance. Strictly speaking, the front end of the bag air filter There is also a layer of pre-filtering device, usually using a disposable paper frame or a metal frame plate filter. However, some domestic users do not use the bag filter for the first-stage filtration after the front-end paper frame filter reaches the end of life, resulting in a bag filter with a harsh environment and a shortened service life, which cannot meet the manufacturer’s design requirements. This situation should be avoided as much as possible. Although the addition of one pre-filtering increases the purchase cost, the replacement period of the bag filter can be extended, and the total maintenance cost is reduced in the long run. The bag type air filter has various specifications, and is made of fine glass fiber or the latest type of composite non-woven fabric as the main raw material, and has a reliable sealing property and is convenient for replacing the filter material.
Post time: Jun-19-2020