The role of the breathing valve: It makes full use of the pressure capacity of the tank itself to reduce oil vapor emissions. The principle is to use the weight of the valve disc to control the positive and negative suction pressure of the tank. When the pressure of the gas in the tank is within the control pressure range of the mechanical breathing valve, the breathing valve does not operate to maintain the tightness of the oil tank; when the pressure of the gas space in the tank rises to reach the positive pressure of the breathing valve, the pressure The valve is opened and the gas escapes from the tank, so that the pressure in the tank does not continue to increase; when the pressure in the gas space in the tank drops and reaches the negative pressure of the control of the breathing valve, the atmosphere outside the tank will open the vacuum valve and enter the tank. Inside, the pressure inside the tank does not continue to drop. Maintenance and maintenance of the breathing valve: maintenance and maintenance of the breathing valve once a month, twice a month in winter. The method: firstly open the bonnet gently, take out the vacuum valve disc and the pressure valve disc, check the valve disc and the valve disc seal, the disc guide rod and the guide rod sleeve are free of oil and dirt, such as oil and dirt The object should be cleaned, then put back in place, pull up and down a few times, check whether the opening is flexible and reliable. If everything is ok, tighten the bonnet. In the maintenance and maintenance, 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. Performance and characteristics of the breathing valve: The material of the new type of pipeline flame arrester is: cast iron, cast steel, stainless steel, aluminum alloy, good corrosion resistance. The valve disc and the valve sealing ring are made of stainless steel tetrafluoroethylene. Low temperature resistance and good antifreeze performance. The valve is a ventilation device installed on the fixed top tank to reduce the evaporation loss of the oil and control the pressure of the tank. The valve has large ventilation, small leakage, corrosion resistance and good antifreeze performance. It can automatically adjust the pressure inside and outside the oil storage tank. Concerned about surprises Label: the role and maintenance of the breathing valve Previous: Encyclopedia of Centrifugal Pumps Next: Structural Improvement and Strength Calculation of Plug Valves Glucose Test Drink,Sodium Gluconate In Food,Sodium Gluconate Uses In Cosmetics,Sodium Gluconate Chelating Agent Shaanxi United Xingchuang International Co., Ltd. , https://www.lxcgj.com