how to select liquid filter housing and the maintenance

- Jan 02, 2019-

How to select liquid filter housing and the maintenance of it



Liquid filter housing, which is a common type of filter, is mainly used to filter liquid . Since at the beginning of the article mentioned the filter this specific category, below, may as well to a good understanding of understanding, to have a correct understanding of the product.



Liquid filter housing is used to filter the liquid, and is the indispensable medium pipeline, a device is usually installed in a reducing valve, relief valve, water valve inlet side or other equipment, used to remove the impurity in the medium, in order to ensure the normal operation of valves and equipment can and use. When there is a fluid into the filter cylinder with a certain specification of the filter screen, impurities in the fluid are blocked, and the clean filtrate is discharged by the filter port. If the filter needs to be cleaned, simply remove the removable cartridge and reload after cleaning. Therefore, it can be concluded that the liquid through the liquid filter, can achieve a certain degree of cleanliness.



1. Selection of liquid filter housing


Liquid filter housing selection, which is an important work, is required to take into account some specific aspects, which are:



Nominal pressure: the pressure level of the filter shall be determined according to the upper pressure limit that the filter pipe may reach.


The choice of pore number: it is mainly to consider the impurity particle size that needs to be intercepted, and to determine according to the requirements of the medium flow process. In addition, you can also refer to the screen specifications.


Filter material: it is to choose the same material as the process conduit that joins commonly with place qualitative, if have different condition, can consider to choose cast iron, carbon steel, low alloy steel and stainless steel to wait for these material to pledge.


Calculation of filter resistance loss: if it is used to filter water, the pressure loss is 0.52-1.2kpa under the general calculation of rated flow rate.



2. Maintenance of liquid filter housing


(1) the core and important parts of this kind of filter are the filter element. If the filter element is composed of a frame and a stainless steel wire mesh, the stainless steel wire mesh belongs to the vulnerable parts and needs special maintenance.


(2) when the filter is used for a period of time, cleaning should be carried out to avoid the accumulation of impurities in the filter which will affect the filter quality and filtering effect of the device. Be careful not to deform, damage or damage the filter element during cleaning. If the filter element is found to be deformed or damaged, a new filter element should be replaced immediately without delay.