breathing valve maintenance methods sharing

The breathing valve is a safe and energy-saving product that maintains the air pressure balance of the storage tank and reduces the volatilization of the medium. It makes full use of the pressure-bearing capacity of the storage tank itself to reduce medium emissions, and controls the positive exhaust pressure and negative suction pressure of the storage tank by utilizing the weight of the positive and negative pressure valve plates. The maintenance methods for the breathing valve are as follows:
The maintenance and upkeep of the breathing valve is once a month, twice a month in winter. The method: first gently open the valve cover, take out the vacuum valve disc and pressure valve disc, check the valve disc and valve disc seal, valve disc guide rod and guide rod sleeve, etc. for oil and dirt. If there is oil and dirt, The dirt should be cleared away, then put back into the original position, pull it up and down a few times, and check whether the opening is flexible and reliable. If everything is normal, cover the valve cover and tighten it. During maintenance and upkeep, if the valve disc is found to have scratches, wear and other abnormal phenomena, it should be replaced immediately or contact the supply company so that it can be solved in time.
In summary, do you know the maintenance methods of the breathing valve?