This force is maximum just before the vent valve opens, so leakage will not occur when tank pressure increases or when tank pressure is kept near the set point of the venting device.

• 在通气阀打开之前，这一作用力达到最大，所以在储罐压力增加时或储罐压力保持在通气装置设定压力附近时，不会发生泄漏。