Gas Generator Refractory Lining Bricks
> High-alumina refractory bricks custom-shaped for lining the reaction chambers of producer or water gas generators to withstand extreme temperatures. These bricks are dedicated parts of the generator, providing thermal insulation and protection. They fall under tariff item 8405.90.00 as parts of gas generators.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the bricks are standard refractory bricks not shaped for a specific machine
Refractory bricks of heading 6902 are classified based on their composition, not as machine parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• > Ensure the bricks are specifically shaped for gas generators and not standard refractory bricks
• Provide CBSA with drawings or specifications showing the custom shape
• If the bricks are imported as a lining kit, confirm whether they include other materials that might affect classification
Related Products under Tariff item 8405.90.00
Acetylene Gas Generator Purifier Tower
> A vertical tower filled with purification media designed to remove impurities such as phosphine from acetylene gas produced in water process generators. This purifier tower is an integral part of acetylene gas generators, ensuring the gas meets quality standards for downstream use. It falls under tariff item 8405.90.00 as a part of acetylene gas generators with their purifiers.
Acetylene Generator Calcium Carbide Feeder
> A precision hopper-feeder designed for metered dispensing of calcium carbide into water reaction chambers of acetylene generators. This feeder ensures controlled reaction rates and safe operation, making it an essential part of the generator system. It is classified under tariff item 8405.90.00 as a part of acetylene gas generators.
Acetylene Generator Drum Seal Assembly
> A sealing mechanism for calcium carbide drums in acetylene generators, designed to control the water reaction rate by regulating moisture exposure. This seal assembly is critical for safe and efficient generator operation. It falls under tariff item 8405.90.00 as a part of acetylene water process gas generators.
Acetylene Generator Safety Relief Valve
> A pressure relief valve calibrated for overpressure protection during water-carbide reactions in acetylene generators. This safety-critical part prevents dangerous pressure buildup, ensuring safe operation. It is classified under tariff item 8405.90.00 as a part of acetylene gas generators.
Gas Generator Generator Frame Casting
> A heavy-duty cast iron base frame providing structural support for complete producer gas generator assemblies. This frame is a foundational part that ensures the stability and alignment of the generator components. It falls under tariff item 8405.90.00 as a part of producer gas generators.
Gas Generator Heat Exchanger Coils
> Stainless steel coils designed for recovering waste heat from producer gas generator exhaust streams. These coils are integral to improving thermal efficiency and are specifically shaped for the generator's exhaust system. They are classified under tariff item 8405.90.00 as parts of producer gas generators.