HXF2 with double take over fire resistance breather valve

Application of fire-resistance breathing valve with double pipes:

The flame retardant breathing valve with double nozzle is a ventilation device installed on the top of the storage tank. It not only avoids accidents caused by damaging the storage tank due to sudden overpressure in the tank due to accidents, but also maintains the pressure balance of the storage tank and reduces the volatilization of the medium. Energy-saving products, the breathing valve makes full use of the pressure-bearing capacity of the storage tank to reduce media emissions. The principle is to use the weight of the positive and negative pressure valve disc to control the positive pressure and negative pressure of the storage tank; when it is drawn out of the tank The medium reduces the pressure of the upper gas space in the tank. When the negative pressure of the breathing valve is reached, the atmosphere outside the tank will open the negative pressure valve plate of the breathing valve, allowing outside air to enter the tank and make the pressure inside the tank Do not continue to descend, let the air pressure inside the tank and outside the tank balance to protect the protection device of the storage tank, especially suitable for the vault atmospheric tank topped with nitrogen for the storage of materials. It has the characteristics of constant pressure discharge, flexible opening and closing, compact structure, good sealing performance, reliability, large ventilation, small leakage, and corrosion resistance. The valve disc is made of PTFE material, which has the advantages of low temperature resistance and frost resistance.

HXF2 fire retardant breathing valve with double takeover Details:

Product features and performance:

The fire-resisting breathing valve with double nozzles is a fire-resisting breathing valve installed on the top of an indoor fixed storage tank. It can automatically adjust the pressure difference between the inside and outside of the oil storage tank. Its performance is reliable and stable, and it is fully in line with SY7511-87 of the Ministry of Petroleum Industry. standard.

The scope of products:

The flame retardant breathing valve with double nozzle is suitable for storage with an internal point lower than 28. Class A oil of C has a flash point of less than 100. C B oil products, such as gasoline benzene, kerosene, light diesel oil, heavy oil and other oil products and storage tanks for chemical products of the same nature.

The main technical parameters:

​Product maintenance and maintenance:

In order to ensure that the performance of the fire-resisting breathing valve with double pipes can achieve the purpose of safe use, the fire-resisting breathing valve should be inspected and maintained regularly:

1. Check whether the pressure valve disc and the vacuum valve disc move flexibly, and whether the contact surface of the guide rod and the valve seal ring is damaged.

2. When reinstalling the pressure plate and the vacuum plate, ensure that the contact surface is tight and the guide rod can be raised and lowered flexibly.

3. When starting a new breathing valve, the anti-vibration material of the valve disc must be removed.

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Breather valve,Breather valve Manufacturer,Breather Valve Manufacturers in china