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Product Parameters
| Model Number | DN40-C8011/54mm inner diameter |
| Purpose | for replace/repair |
| Brand Name | Jialong |
| Color | Metallic Gray |
| Application | oil tanker truck |
| Material | Aluminum Alloy |
| Type | valve/Breathing Valve |
| Product name | Aluminum Alloy Pressure Relief and Breathing Valve/Tanker Truck Breathing Valve |
| Condition | New |
| Place of Origin | Hubei, China |
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Aluminum Alloy Breathing Valve & Type A Camlock Coupling: Easy Installation & Stable Functional Performance
Tank Top Mounted Breathing Valve For Pressure & Vacuum Relief
This aluminum alloy pressure balance breathing valve mounts on tanker tank tops and connects to vent ports. It acts as the main vent part to regulate tank internal pressure during loading, unloading and transit.
This external tanker breathing valve is installed on tank tops and linked to vent holes, acting as the main external fitting for pressure and vacuum relief.
Fuel Loss Reduction
It automatically balances the internal pressure of oil tankers. It releases redundant gas when pressure exceeds the preset value and inhales filtered clean air when negative pressure forms inside the tank. The design effectively prevents tank deformation, expansion or collapse, keeps stored fuel clean, and lowers volatile loss during transit.
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Aluminum Alloy Tank Breathing Valve & A-Type Camlock Coupling: Detailed Structure Display
This aluminum alloy breathing valve fits all oil and chemical tankers and installs smoothly on tank vent holes. It automatically adjusts positive pressure and negative pressure inside the tank: releasing excess gas to prevent tank expansion when pressure rises, and inhaling filtered air to avoid tank collapse under vacuum. Built-in flame isolation structure effectively blocks open flames, reduces fuel volatilization loss and protects stored liquid during transportation.
Made of integrally cast anti-corrosion aluminum alloy, the breathing valve boasts sturdy structure and long service life. All finished products undergo strict pressure, sealing and flame resistance tests before shipment. Custom sizes and logos are available, with sufficient stock for fast delivery. Our products are widely exported to overseas markets and supported by full-cycle after-sales technical service for global partners.
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Aluminum Alloy Breathing Valve & Type A Camlock Coupling: Core Product Advantages
Reliable Pressure Control & Connection Performance
Premium aluminum alloy material features outstanding corrosion resistance against oil and chemical liquids, effectively extending service life for long-term tanker transportation.
Dual positive & negative pressure design automatically balances tank pressure, preventing tank deformation and cutting fuel volatile loss during loading, unloading and transit.
2" Type A male thread camlock fitted with stainless steel clamp, enabling fast assembly and reliable sealing with zero liquid leakage.
Compact top-mounted breathing valve structure with simple layout, convenient for daily installation, inspection and routine maintenance.
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About Us
Haigong (Hubei) Import and Export Co., Ltd. specializes in tanker and fluid transport fittings with more than 15 years of self-developed production and global export experience. We provide high-performance aluminum breathing valves and Type A camlock couplings for oil, chemical tankers and IBC containers. Supported by stable quality and custom solutions, our products are exported to Africa, South America and other overseas markets, paired with comprehensive after-sales support for worldwide distributors.
Advantages of High-Pressure Water Cannon
We have 15+ years of sanitation fittings export experience. The all-aluminum spray gun rotates 360° with wide spraying coverage. Customizable, certified with CE&ISO, sufficient stock and complete after-sales service for global clients.

Production & Inspection Process of Aluminum Alloy Breathing Valve
Our factory owns complete production lines for tanker breathing valves. Raw alloy materials and finished goods pass rigorous pressure, flame resistance and sealing tests. Standardized manufacturing is adopted, custom specifications are available, and sufficient stock ensures prompt delivery for global purchasers.

Global Market Layout & Comprehensive After-Sales of Tank Breathing Valve
Our aluminum breathing valves are shipped to Africa, South America and other overseas regions for oil and chemical tankers. We offer round-the-clock online technical guidance and quick after-sales support to solve pressure relief system issues, reducing operational losses for global distributors.

We are a leading manufacturer of special trucks, tankers, trailers, and spare parts in China Welcome to visit us in Suizhou city, the production base of Chinese special purpose vehicles
T/T 30-50% as deposit, and the rest before delivery. We'll show you the photos of the products and packages before you pay the balance.
EXW, FOB, CFR, CIF, DAF, DDU.
Generally, it will take 20 to 30 days after receiving your advance payment. The specific deliver time depends on the items and the quantity of your order.
Yes. We have professional R&D team, we can produce the product exactly according to your requirements.
We are direct sales from the factory, so the price is very competitive. Different products have different prices. The price also depends on your special needs. To know the exact price, please contact us!
Yes, we have 100% test before delivery.
We provide lifelong tracking service and one year free warranty for all of our products.Meanwhile we provide free training and technical support to quide you repair your product. lf you need, we will also supply original spare parts and you just need to pay the freight