breathing valve

Breathing Valve shall be set on roof of the fixed-roof tanks, which can make the tanks safe and reduce the loss of the stored liquids as evaporation.

呼吸阀安装在固定顶罐的通风装置，起减少油品蒸发损耗，控制储罐压力的作用，它也可与阻火器联合安装使用。

The equations on the maximum breathing capacity for breather valve are given by theoretical analyses and calculations, and it is considered that the diameter of breather valve to be selected should be on the basis of the maximum suction capacity of induction valve.

通过理论分析和计算，给出了呼吸阀最大通气量的计算公式，并认为呼吸阀口径的选取应以吸气阀侧的最大吸气量为依据。

Two-step Breathing Valve Can Ensure the Safety of Oil Tank

两级式呼吸阀能保证油罐呼吸安全

Determination for Air Breathing Quantity of Atmospheric and Low Pressure Tank and Selection of Its Breathing Valve

常压、低压储罐呼吸量的确定及呼吸阀的选用

When the tank pressure of the gas control valve in the mechanical ventilator pressure within the breathing valve does not move and maintain airtight tank;

当罐内气体的压力在机械呼吸阀的控制压力范围之内时，呼吸阀不动作，保持油罐的密闭性；