HXF2 type with double pipe flame retardant breathing valveDetailed product description：

Characteristics and performance of HXF2 type dual tube flame retardant breathing valve:

The double pipe flame retardant breathing valve is a pipe flame retardant breathing function installed on the top of indoor fixed storage tanks. It can automatically adjust the pressure difference inside and outside the oil storage tank, and its performance is reliable and stable, fully complying with the SY7511-87 standard of the Ministry of Petroleum Industry.

HXF2 type dual tube flame retardant breathing valve is suitable for:
Suitable for storage with an internal point below 28. Class A oil with a flash point below 100. C-B oil products, such as gasoline, kerosene, light diesel, thick oil, and chemical product storage tanks with the same properties.

Operating pressure

Stress

+980Pa +100mmH2O

-295Pa -30mmH2O

Maintenance and upkeep:

In order to ensure the safe use of the dual tube flame retardant breathing valve, it should be regularly inspected and maintained:
1. Check whether the pressure valve disc and vacuum valve disc operate flexibly, and whether the contact surface of the guide rod and valve sealing ring is damaged.
2. When reinstalling the pressure plate and vacuum plate, ensure that the contact surface is tight and the guide rod can be raised and lowered flexibly.
3. When activating a new breathing valve, the shock absorber on the disc must be removed.