Double Nozzle Breather Valve

The double nozzle breather valve is installed on the top of indoor fixed storage tank. It can automatically adjust the pressure difference between the inside and outside of the oil storage tank, and its performance is reliable and stable, fully in line with the SY7511-87 standard of the Ministry of petroleum industry.

It is suitable for storing class a oil products with inner point lower than 28 ℃ and class B oil products with flash point lower than 100 ℃, such as gasoline, kerosene, light diesel oil, thick oil and other oil products with the same chemical materials. It is applicable to the recoverable gas storage tank. If there is a nitrogen capped storage tank, it can directly inhale nitrogen from the nitrogen tank, and it can also be connected to the waste nitrogen recovery in the tank, so as to achieve high efficiency, energy saving and environmental protection. The valve can replace the nitrogen sealing device.

In order to ensure the performance of the flame arrester breathing valve with double connecting pipes to achieve the purpose of safe use, the flame arrester breathing valve shall be inspected and maintained regularly:

1. Check whether the action of pressure valve disc and vacuum valve disc is flexible and whether the contact surface of guide rod and valve sealing ring is damaged.

2. When re-installing the pressure plate and vacuum plate, the contact surface shall be tight, and the guide rod shall be lifted and lowered flexibly.

3. The disc must be shockproof when a new breather valve is activated.

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