All-Weather Insulated Flame-Arrestor Breather Valve for Storage Tanks
The GFQ Series All-Weather Breather Valve with Flame Arrestor, also known globally as a Vacuum Pressure Vent Valve with Flame Arrestor, is an essential safety device for petrochemical storage tanks. Its primary function is to maintain the internal pressure balance while minimizing vapor loss, ensuring both environmental safety and operational efficiency. This valve is particularly valued for its flame-arrestor capability, preventing ignition sources from entering the tank and thereby reducing fire hazards.
Constructed from premium aluminum and brass components, the GFQ breather valve is built to withstand harsh conditions including extreme cold, heavy rain, and dust. Its PTFE valve seat offers outstanding resistance to low temperatures and anti-freezing properties, guaranteeing consistent operation even in sub-zero climates. An integrated electrostatic protection mechanism keeps the valve at the same electrical potential as the tank, enhancing safety in volatile environments. This makes the valve suitable for handling gasoline, kerosene, diesel, aromatics, sulfur, air, and other petrochemical liquids.
The GFQ Series is designed with multiple operating pressure ranges to meet diverse application needs: Type A (+355Pa to -295Pa), Type B (+980Pa to -295Pa), Type C (+1750Pa to -295Pa), and Type D customized per client requirements. Most users adopt the Type B configuration as the standard operating pressure, but all models are customizable to fit specific tank conditions. Its flange connections, either with or without flame arrestor, can also be tailored according to customer specifications, ensuring seamless integration with existing tank systems.
Engineered for high performance, this breather valve responds rapidly to internal pressure fluctuations, maintaining a stable and safe tank environment. Its simple, modular structure allows for quick disassembly and maintenance, saving time and reducing operational downtime. The flame arrestor core, made from layered folded stainless steel, effectively extinguishes any potential flames before they reach the interior, while the valve body, cap, and flame arrestor base provide durability and corrosion resistance for long service life.
Around the world, this valve is known by different names reflecting regional usage: in North America, it is often called an Ethanol Fuel Vent with Flame Arrester; in Europe, it is referred to as a Storage Tank Pressure Relief Valve with Integrated Flame Arrestor; while in Asia and the Middle East, operators may call it a Petrochemical Tank Breather Valve or Fire-Safe Vent Valve. Despite the naming differences, the purpose remains the same—to ensure safe, energy-efficient storage of flammable liquids.
This series is especially suited for fuel depots, gas stations, chemical storage facilities, and industrial tank systems where environmental compliance and operational safety are priorities. With its all-weather design, reliable flame-arresting performance, and customizable pressure ratings, the GFQ Series offers an advanced, long-lasting solution for maintaining safe and efficient tank operations.
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