PVC DWV Straight Coupling
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3917400020 | 40.3% | CN | US | 官方文档 |
| 3926305000 | 22.8% | CN | US | 官方文档 |
| 3917400050 | 40.3% | CN | US | 官方文档 |
| 3926909989 | 22.8% | CN | US | 官方文档 |
| 3917400020 | 40.3% | CN | US | 官方文档 |
商品图片
AI分析
🛠️ PVC DWV Straight Coupling (Plumbing Fittings)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: What is a "DWV Straight Coupling"?
A PVC DWV Straight Coupling is a critical plumbing component used in Drain, Waste, and Vent (DWV) systems. It connects two pipes of the same diameter in a straight line. In international trade, classification depends heavily on whether the item is defined as a pipe fitting (Section 3917) or a general plastic article/fastener (Section 3926).
Key Distinction:
- Pipe Fitting (3917.40): Specifically designed for use with pipes to connect, branch, or terminate flow. Must meet the definition of a "non-pressure rated pipe fitting."
- General Plastic Article (3926.90 / 3926.30): If deemed a general connector, fastener, or part not specifically for pipes, it may fall under "other plastic articles" or "furniture/body fittings."
⚠️ Critical Classification Point:
- If the product is explicitly marketed, labeled, or designed as a pipe fitting for DWV systems → 3917.40
- If it is a generic connector/fastener without specific pipe-fitting certification → 3926.90 or 3926.30
- Misclassification Risk: Declaring a pipe fitting as a "general plastic part" to avoid higher tariffs can lead to severe penalties, as the US Customs and Border Protection (CBP) strictly enforces the "specific use" rule.
📦 II. HS Code Classification Details (2026 Latest Tariff Alignment)
| HS Code | Product Description | Application Scenario | Key Classification Logic |
|---|---|---|---|
3917.40.00.20 |
PVC DWV Pipe Fittings, Straight Coupling | Non-pressure rated DWV pipe connections | ✅ Exact Match: Defined as "pipe fittings" for non-pressure pipes. |
3917.40.00.50 |
PVC Pipe Fittings, Other | Other DWV pipe connections not specifically listed | ✅ Fit: General category for DWV pipe fittings if ...20 is too specific. |
3926.30.50.00 |
Plastic Fasteners/Connectors (Furniture/Body) | General connectors, non-pipe-specific | ⚠️ Alternative: If not strictly a "pipe fitting," classified as other plastic fasteners. |
3926.90.99.89 |
Other Plastic Articles | General plastic parts, accessories | ⚠️ Broad Category: Used if the item is considered a "part/accessory" not covered elsewhere. |
🔍 Important Note:
-3917.40is the correct classification for DWV Straight Couplings made of PVC.
-3926codes are incorrect for standard DWV fittings unless the product is explicitly not intended for pipe use (e.g., a decorative plastic clip).
- Do not mix: Once classified as a pipe fitting (3917), it cannot be reclassified as a general part (3926) for duty purposes.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Additional Taxes)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: 2025/2026 (Current Trade Policy)
🎯 1. 3917.40.00.20 & 3917.40.00.50 —— PVC Pipe Fittings (Correct Classification)
| Item | Details |
|---|---|
| Base Tariff Rate | 5.3% (General) |
| Section 301 Additional Tariff | +25.0% (Trade War Tariff) |
| Section 122 Tariff (IEEPA) | +10.0% (China-specific additional duty) |
| Total Tariff Rate | 40.3% |
| Tax Calculation | CIF Value × 40.3% |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis) |
| Legal Basis | USITC:3917.40.00.20 → Footnote 301:3917.40 → IEEPA:9903.01.25 |
📌 Explanation:
- The 5.3% is the standard Most Favored Nation (MFN) rate for plastic pipes and fittings.
- The 25% is the Section 301 tariff imposed on Chinese goods in this HS category.
- The 10% is the Section 122 tariff under the International Emergency Economic Powers Act (IEEPA), targeting specific Chinese plastic products.
- Total: 40.3%. This is a high-duty item.
🎯 2. 3926.30.50.00 & 3926.90.99.89 —— Incorrect/Alternative Classification (For Reference Only)
| Item | Details |
|---|---|
| Base Tariff Rate | 5.3% |
| Section 301 Additional Tariff | +7.5% (Lower rate for some plastic articles) |
| Section 122 Tariff (IEEPA) | +10.0% |
| Total Tariff Rate | 22.8% |
| Tax Calculation | CIF Value × 22.8% |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis) |
| Legal Basis | USITC:3926.90.99.89 → Footnote 301:3926.90 → IEEPA:9903.01.25 |
📌 Warning:
- While 22.8% is significantly lower than 40.3%, using these codes for DWV Straight Couplings is misclassification.
- CBP audits frequently target under-declared duties. If proven that the item is a pipe fitting, the importer will owe the difference (17.5%) plus penalties and interest.
- Do not use these codes for standard plumbing fittings.
🛠️ IV. Customs Clearance Practical Advice (Risk Avoidance Guide)
✅ 1. Required Documentation Checklist
| Document | Mandatory? | Notes |
|---|---|---|
| Product Specification Sheet | ✅ Yes | Must clearly state "DWV Fitting," "PVC," "Non-Pressure," "Straight Coupling." |
| Commercial Invoice | ✅ Yes | Description must match HS Code exactly: "PVC DWV Straight Coupling, Pipe Fitting." |
| Packing List | ✅ Yes | Include weight, dimensions, and quantity. |
| Certificate of Origin (CO) | ✅ Yes | To prove origin (China) and verify tariff applicability. |
| Product Photos | ✅ Yes | Show the fitting clearly as a pipe connector (socket/spigot design). |
| Import License | ❌ No | Not required for PVC fittings. |
✅ 2. Declaration Tips (Key Keywords)
🔥 "Be Specific, Be Accurate, Avoid Ambiguity!"
| Scenario | Correct Declaration | Incorrect Declaration |
|---|---|---|
| Standard DWV Coupling | PVC DWV Pipe Fitting, Straight Coupling |
Plastic Connector, Pipe Part, Plastic Accessory |
| Material | PVC-U or Rigid PVC |
Plastic (too vague) |
| Usage | For Drain, Waste, Vent Systems |
For General Plumbing (may be rejected) |
| HS Code | 3917.40.00.20 |
3926.90.99.89 |
✅ 3. Special Handling Cases
| Case | Handling Advice |
|---|---|
| OEM/Custom Sizes | Provide engineering drawings showing the fitting connects to specific pipe diameters (e.g., 2" x 2"). |
| Mixed Shipments | If the shipment contains both DWV fittings (3917) and non-pipe plastic parts (3926), separate them on the invoice. Do not lump them together. |
| Pre-Cut/Assembled | If the coupling is part of a larger assembly (e.g., a pre-fabricated pipe segment), the entire assembly may be classified differently. |
| De Minimis (Section 321) | ❌ Not Eligible. PVC fittings from China are excluded from the $800 de minimis threshold due to Section 301 and IEEPA. |
🌍 V. Global Market Clearance Comparison (2026)
| Country/Region | Recommended HS Code | Total Tariff (China Origin) | Notes |
|---|---|---|---|
| 🇺🇸 USA | 3917.40.00.20 |
40.3% | High duty due to Section 301 + IEEPA 122. |
| 🇨🇳 China | 3917.40.00.20 |
5.3% | Standard import duty. |
| 🇪🇺 EU | 3917.40.00.00 |
6.5% | Standard MFN rate. No Section 301. |
| 🇬🇧 UK | 3917.40.00.00 |
6.5% | Post-Brexit tariff schedule. |
| 🇨🇦 Canada | 3917.40.00.00 |
5.0% | Low duty under CUSMA. |
📌 Conclusion:
- The USA is the most expensive market for PVC DWV fittings due to叠加 tariffs.
- EU, UK, and Canada offer significantly lower tariffs but require strict compliance with REACH (EU) or similar standards.
📌 VI. Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Using 3926.90.99.89 to save 17.5% in duties.
👉 Consequence: CBP audit → Back taxes + 20-40% penalty + possible suspension of privileges.
❌ Mistake 2: Declaring as "Plastic Pipe" instead of "Fitting."
👉 Consequence: Wrong HS Code (3917.19 vs 3917.40). Pipes and fittings have different rates and regulatory requirements.
❌ Mistake 3: Ignoring the Section 122 Tariff.
👉 Consequence: Underpayment by 10%. CBP actively tracks IEEPA violations.
❌ Mistake 4: Using "De Minimis" for shipments under $800.
👉 Consequence: Goods detained, seized, or returned. PVC fittings are excluded.
✅ Correct Approach:
"PVC DWV Straight Coupling, 2-inch, Rigid PVC, Non-Pressure, For Drain/Waste/Vent Systems"
HS Code:3917.40.00.20
Total Duty: 40.3%
🎯 VII. Conclusion: Professional Compliance Saves Money!
🎯 Remember:
🔹 "Fit the Description, Not the Duty!"
🔹 "PVC DWV Fittings = 3917.40. No Exceptions!"
🔹 "Misclassification = Costly Penalties + Delays!"
📌 Pro Tip:
If you are importing large volumes, consider applying for an Advance Ruling from CBP. This provides legal certainty and prevents future disputes.
For US imports, factor in the 40.3% total tariff in your cost calculations. There are no exemptions for standard PVC DWV fittings from China.
📣 Act Now:
📞 Consult with a licensed customs broker.
📄 Ensure your invoice description matches the exact HS Code definition.
🚀 Clearance Smooth, Costs Predictable, Profit Protected!
✨ Professional Customs Compliance Starts with Accurate Classification!
💼 Every Percentage Point Counts in International Trade!
用户评价
关于 HS 编码归类
协调制度（HS）是由世界海关组织（WCO）制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。
每个 HS 编码遵循以下层级结构：
- 章（2 位）——商品大类（例如：第 84 章：机器和机械设备）
- 品目（4 位）——章内的更具体分类
- 子目（6 位）——国际通用细分，所有 WCO 成员国统一使用
- 本国细分（8-10 位）——各国自行扩展的细分编码，如美国 HTSUS 10 位编码
正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。
从CN进口到US时，适用的关税税率可能包括：
- 最惠国（MFN）税率——适用于 WTO 成员国的标准关税税率
- 普通税率——适用于无贸易协定国家
- 贸易救济关税——附加关税，如 301 条款（反倾销）、232 条款（国家安全）或反补贴税
本页内容仅供参考。如需正式归类，请咨询当地海关或持牌报关代理。