What are the key points for the selection of air filter?
Air mid-efficiency filters are mainly used in two places, which are central air conditioning and centralized air supply systems. The main function of this kind of equipment is to be used in the primary filtration of the air-conditioning system. The main benefit is that it can protect the next-level filter in the system and the system itself. After the air filter is processed, the air can be sent directly to the user. The use of this air filter is quite similar. It can be used in the front end of some central air-conditioning ventilation, and it can also be used in some industrial purification of pharmaceutical or food. If this equipment is placed in the front end of the high-efficiency air filter, it is often It can reduce the load of the high-efficiency air filter and prolong its service life. For this kind of equipment, do you know his selection points? Let’s learn its selection points together.
In the selection process of air medium efficiency filter products, it is better to pay attention to the rated air volume of the control parameters, including the filtration efficiency under the rated air volume and the resistance under the rated air volume. Even its size is something to consider. There are mainly two kinds of filter materials commonly used in this kind of filter, these two kinds of filter materials are glass fiber and non-woven fabric. In the process of choosing this kind of filter, you need to pay special attention. Most manufacturers can provide the dust holding capacity of the filter. The resistance of this kind of filter is usually <80MPa. Double the initial resistance to the final resistance, which can be used as the calculated resistance of the filter.
The filter resistance generally does not exceed 10% of the sample resistance. If the regenerable and washable filter media is cleaned, its efficiency is often not lower than 85% of the original index, and the resistance is not higher than 115% of the original index. The air filter also needs to meet the requirements of fire protection. The flash point of the paint of the air filter should not be lower than 163C. This filter is not suitable for independent use.
This is the key points of choosing air filters to share with friends. When using this kind of equipment, it is better not to use it alone, it is better to use it in combination with a coarse-effect air filter. When these two kinds of filters are used in combination, its effect will be better. This device cannot be installed in the bathroom during installation.