For the above filter, if there is a differential pressure gauge or differential pressure sensor before and after the filter, the rough filter must be replaced when the differential pressure is greater than 250 Pa; when the differential pressure is greater than 330 Pa, Must be replaced; for sub-high efficiency filter, when the pressure difference is greater than 400Pa, it must be replaced, and the original filter can not be reused; for high efficiency filter, when the resistance value of the filter is greater than 450Pa; or when The airflow velocity on the wind surface is reduced to a low limit. Even if the coarse and medium efficiency filter is replaced, the airflow speed cannot be increased; or when the surface of the high-efficiency filter is leaky that cannot be repaired, a new high efficiency filter must be replaced; If there is no such condition, it can generally be replaced once every 1-2 years according to the conditions of the use of the environment. In order to give full play to the role of the filter, in the selection and use process, the upstream wind speed of the filter, coarse and medium efficiency filter should not exceed 2.5m/s, and the sub-high efficiency filter and high efficiency filter should not exceed 1.5m/s. s, this will not only help to ensure the efficiency of the filter, but also extend the service life of the filter and save costs. In the operation of the equipment, generally do not replace the filter; if the filter can not be replaced due to the replacement period, only allow The coarse and medium efficiency filters shall be replaced in the case of non-stop blower; the sub-high efficiency filter and the high efficiency filter must be replaced after the air supply is stopped; the seal between the filter and the connection frame must be tight and without leakage. Guarantee filtration Engine Parts,Magnetic Oil Sump,Air Filter,Boost Controller Zhejiang Xuzhong Auto Parts Co., Ltd. , https://www.cnxuzhong.com
For high-efficiency filters that are used in high-humidity, high-temperature environments, filters, partitions, and frame materials that are resistant to high temperatures and high humidity must be selected to meet production requirements. Biological clean rooms and pharmaceutical clean rooms must use metal frame filters, and their surface should not be rusted easily. Wooden frame filter should not be used to prevent bacteria and affect the product's pass rate.
In the process of transportation, installation and use, it should be carried out in accordance with requirements in order to ensure the use of results. After various filters are used for a period of time, dust is trapped on the surface of the filter material, which reduces the efficiency and resistance of the filter and affects the cleanliness of the air supply. At this time, the filter needs to be replaced in time.
February 17, 2023