HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
8487900080 | Doc | 83.9% | CN | US | 2025-05-12 |
8487900040 | Doc | 58.9% | CN | US | 2025-05-12 |
8483908080 | Doc | 57.8% | CN | US | 2025-05-12 |
8483908040 | Doc | 57.8% | CN | US | 2025-05-12 |
7326908688 | Doc | 82.9% | CN | US | 2025-05-12 |
7308907000 | Doc | 80.0% | CN | US | 2025-05-12 |
7308909560 | Doc | 80.0% | CN | US | 2025-05-12 |
9406900190 | Doc | 82.9% | CN | US | 2025-05-12 |
9406900130 | Doc | 82.9% | CN | US | 2025-05-12 |
4016996010 | Doc | 57.5% | CN | US | 2025-05-12 |
4016993510 | Doc | 55.0% | CN | US | 2025-05-12 |
4006905000 | Doc | 57.7% | CN | US | 2025-05-12 |
8307103000 | Doc | 58.8% | CN | US | 2025-05-12 |
8307106000 | Doc | 58.8% | CN | US | 2025-05-12 |
8308909000 | Doc | 57.7% | CN | US | 2025-05-12 |
8308906000 | Doc | 58.9% | CN | US | 2025-05-12 |
Wind Outlet Clamp
A wind outlet clamp is a mechanical fastener used to secure ductwork, ventilation systems, or other components to a wind outlet – typically a fan housing or a similar air-moving structure. These clamps are essential for maintaining the integrity and efficiency of airflow in various systems.
Material:
- Galvanized Steel: The most common material due to its corrosion resistance and cost-effectiveness. Suitable for indoor and some outdoor applications.
- Stainless Steel: Offers superior corrosion resistance, ideal for harsh environments, outdoor use, and applications requiring hygiene (e.g., food processing).
- Aluminum: Lightweight and corrosion-resistant, often used in HVAC systems where weight is a concern.
- Cast Iron: Less common now, but sometimes found in older systems, known for its strength and durability.
Purpose:
- Secure Connection: Primarily used to firmly attach ductwork to fan outlets, preventing air leakage and ensuring efficient air distribution.
- Vibration Dampening: Some clamps incorporate rubber or other damping materials to reduce vibration and noise transmission from the fan to the ductwork.
- System Integrity: Maintains the structural stability of the ventilation system, preventing components from detaching or shifting during operation.
Function:
Wind outlet clamps operate on the principle of compressive force. They typically consist of a band, a buckle or tightening mechanism, and often a saddle or lining to protect the ductwork. The band wraps around the duct and the outlet, and the tightening mechanism applies force to secure the connection.
Usage Scenarios:
- HVAC Systems: Connecting supply and return ducts to air handling units, fans, and diffusers.
- Industrial Ventilation: Securing exhaust ductwork in factories, workshops, and processing plants.
- Exhaust Systems: Attaching ductwork to exhaust fans in kitchens, bathrooms, and other areas.
- Air Purification Systems: Connecting ductwork to air purification units and fans.
- Roof Ventilation: Securing vent pipes to roof fans.
Common Types:
- Band Clamps: The most common type, consisting of a metal band and a buckle for tightening. Variations include:
- Standard Band Clamps: General-purpose clamps for various duct sizes.
- Spring Clamps: Use spring tension to maintain pressure; suitable for lighter-duty applications.
- Quick-Release Clamps: Feature a lever or mechanism for easy installation and removal.
- Saddle Clamps: Include a saddle or liner to protect the ductwork from damage. Often used with flexible ductwork.
- Split Clamps: Consist of two halves that bolt together, allowing for installation around existing ductwork without disassembly.
- Flanged Clamps: Used to connect flanged duct sections together.
- U-Bolts: Used for securing ductwork to irregular shapes or structural supports.
Based on the provided information, the following HS codes may be relevant to “wind outlet clamp”:
-
8308909000: Clasps, frames with clasps, buckles, buckle-clasps, hooks, eyes, eyelets and the like, of base metal, of a kind used for clothing or clothing accessories, footwear, jewelry, wrist watches, books, awnings, leather goods, travel goods or saddlery or for other made up articles; tubular or bifurcated rivets, of base metal; beads and spangles, of base metal: Other, including parts: Other. This code covers a wide range of clasps and metal fixtures used in various applications, potentially including those used to secure wind outlets.
- 83: Base metal articles.
- 08: Clasps, buckles, hooks, etc., and parts thereof.
- 90: Other, including parts.
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8308906000: Clasps, frames with clasps, buckles, buckle-clasps, hooks, eyes, eyelets and the like, of base metal, of a kind used for clothing or clothing accessories, footwear, jewelry, wrist watches, books, awnings, leather goods, travel goods or saddlery or for other made up articles; tubular or bifurcated rivets, of base metal; beads and spangles, of base metal: Other, including parts: Buckles and buckle clasps, and parts thereof. If the wind outlet clamp functions as a buckle or clasp, this code may be applicable.
- 83: Base metal articles.
- 08: Clasps, buckles, hooks, etc., and parts thereof.
- 60: Buckles and buckle clasps, and parts thereof.
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7308907000: Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: Other: Steel grating. If the clamp is made of steel grating and is used as part of a larger structure, this code could be considered.
- 73: Articles of iron or steel.
- 08: Structures and parts of structures.
- 70: Steel grating.
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7308909560: Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: Other: Other: Architectural and ornamental work. If the clamp is considered architectural or ornamental work made of iron or steel, this code may be applicable.
- 73: Articles of iron or steel.
- 08: Structures and parts of structures.
- 95: Other.
The applicable tariff for codes 8308909000 and 8308906000 is a base tariff of 2.7% or 3.9%, with a 25% additional tariff, and a 30% additional tariff after April 2, 2025. The total tariff rate is 57.7% or 58.9%. The applicable tariff for codes 7308907000 and 7308909560 is a base tariff of 0.0%, with a 25% additional tariff, and a 30% additional tariff after April 2, 2025. The total tariff rate is 80.0%.
Regarding HS code 7308907000 and 7308909560, please note the need to verify the material as steel grating.