Explosion proof flame retardant breathing valve ZFQ

Explosion proof flame retardant breathing valve ZFQ

overview
ZFQ-1 all-weather explosion-proof flame retardant breathing valve. This product integrates a flame arrester and a breathing valve, and its novel structure is the first of its kind in China. It is a new type of safety equipment essential for petrochemical storage tanks, with the greatest advantages of good flame retardant breathing performance, light weight, and easy maintenance. This product is suitable for storing Class A oil products with an internal temperature below 28 ℃ and Class B oil products with a flash point below 60 ℃, such as gasoline, benzene, toluene, kerosene, light diesel, engine oil, crude oil and other oil products, as well as chemical product storage tanks with the same properties. It works normally in a temperature environment of -35 ℃ -60 ℃.

Performance and characteristics
The shell is made of cast steel and aluminum alloy, which have good corrosion resistance;
The corrugated fire-resistant layer is made of stainless steel material, which has good fire-resistant performance and corrosion resistance;
Simple structure, easy maintenance, safe and convenient;

maintenance
For the safe use of the breathing valve, the corrugated fire-resistant layer should be removed and cleaned regularly within 3-6 months to ensure that each hole on the fire-resistant layer is unobstructed, prevent blockage, and ensure safe and normal use.
Regularly check whether the positive and negative valve discs of the ventilation system operate flexibly, and whether the sealing surface of the guide rod and valve disc is damaged. If there is any damage, it should be replaced immediately.
When inspecting, maintaining, and reinstalling, it should be ensured that the joint surfaces inside the valve are tightly matched and the valve disc is flexible in lifting and lowering.
When a new valve is activated, the shock absorbers between the valve discs should be removed before installation, otherwise the breathing valve will malfunction.

Main technical parameters

Component materials

National standard flange connection external dimensions: GB, JB

American standard flange connection dimensions: ANSI, API, ASME available for JIS standards