HXF4 with exhalation take over fire resistance breather valve

Product Category：BREATHER VALVE
Product Name：HXF4 with exhalation take over fire resistance breather valve
Product Tag：with exhalation take over fire resistance breather
Update Date：2021/8/31 0:08:15
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Note: Our Products Can Be Customized According To Customers' Needs. In Addition To National Standards,We Can Design And Manufacture According To American Standards, Japanese Standards, German Standards, Russian Standards, British Standards And So On.

HXF4 type with exhalation take over fire resistance breather valve product overview:

The characteristics and performance of the fire resistance breathing valve with exhalation takeover: The fire resistance breather valve with exhalation takeover is a takeover breathing function installed on the top of an indoor fixed storage tank. It can automatically adjust the pressure difference between the inside and outside of the petroleum storage tank, and its performance is reliable and stable. , In full compliance with the SY7511-87 standard of the Ministry of Petroleum Industry.

The scope of application of fire-stop breather valve with exhalation takeover:

The fire-stopping breather valve with exhalation takeover is suitable for storing Class A oil products with a flash point lower than 28°C and Class B oil products with a flash point lower than 60°C, such as gasoline, benzene, kerosene, light diesel, heavy oil and other oil products. Storage tanks for chemical products of the same nature.

HXF4 type fire resistance breather valve with exhalation to take over specifications and models:

model	Operating pressure Pa
A	Positive pressure: 355 Negative pressure: 295
B	Positive pressure: 980 Negative pressure: 295
C	Positive pressure: 1765 Negative pressure: 295

Maintenance and maintenance of HXF4 type fire resistance breather valve with exhalation takeover:

In order to ensure that the performance of the fire-resisting breather valve with exhalation takes over to achieve the purpose of safe use, the fire-resisting breather valve should be inspected and maintained regularly:

1. Check whether the action of the pressure valve disc and the vacuum valve disc is flexible, and whether the guide rod and the valve sealing ring are in contact with each other for damage.

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 the new fire-stop breather valve is activated, the shockproof material of the disc must be removed.

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