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Heavy Duty Stainless Steel 304 No Hub Coupling Pipe Connector - China Suppliers & Factory for Cast Iron Drainage
1. Key Selling Points (Short Banner Bullet Points)
- UPC Listed & ASTM A888 Compliant for North American Construction Projects
- 304 Stainless Steel Band + Heavy-Duty German Style T-Bolt Clamp
- Multi-Layer Orange Reinforced Rubber Seal, Anti-Leakage & Anti-Aging
- Flexible Joint Allows 3°-5° Angular Deflection & Thermal Expansion Compensation
- Fast Installation, No Welding / Flange Required, Easy Pipeline Maintenance
- Full Sizes DN50-DN300 Available, Custom Thickness & Width Supported
2. Product Basic Information Table
| Item | Specification Details |
|---|---|
| Brand | TJTC |
| Product Name | Heavy Duty No Hub Coupling |
| Main Material | Strap: 304 stainless steel; Bolt/nut: stainless steel; Gasket: EPDM rubber/chloroprene rubber (orange reinforcement layer or blue reinforcement layer) |
| Certification | UPC Certified, CSA Certified, ASTM A888 |
| Applicable Pipe | W Type Hubless Cast Iron Drain Pipe, DWV PVC Pipe Transition Joint |
| Standard Sizes | DN50, DN75, DN100, DN150, DN200, DN250, DN300 |
| Application System | Building Drainage, Sewage, Rainwater, Vent DWV Pipeline |
| Feature | Shock Resistant, Flexible Connection, Corrosion Resistant, Space Saving |
| Packing | Carton Packing, Pallet Loading for Sea Shipment |
3. Wide Application Scenarios
Construction Type:
- High-rise residential buildings, commercial office buildings, hospitals, schools, shopping malls, hotels, underground parking lots
Pipeline System:
- Indoor vertical drainage risers, horizontal branch sewage pipes, buried main drainage pipes, rainwater collection pipelines, building vent DWV systems
Matching Pipe:
- Hubless W-type cast iron drainage pipe, transition connection between cast iron pipe and PVC DWV pipe
Sales Market:
- North America (USA, Canada), Southeast Asia, Middle East, domestic large-scale real estate engineering projects
4. Quality Control & Certification Support
- Complete UPC certification file for customs clearance and local engineering inspection in North America
- Raw material incoming inspection: stainless steel thickness test, rubber aging resistance test
- Finished product hydraulic leakage test under 0.3MPa working pressure
- Batch production tracking, all sizes have stable dimensional tolerance
- Support third-party inspection before shipment as customer required
5. Packaging and Shipping
Frequently Asked Questions
Q1: Are these heavy duty no hub couplings certified for North American construction?
Yes, our couplings are fully UPC and CSA certified, and they comply with the ASTM A888 standard, making them ideal for commercial and residential construction projects across North America.
Q2: What materials are used to ensure corrosion resistance and durability?
The outer strap and heavy-duty German-style T-bolt clamps are made of high-quality 304 stainless steel. The gasket utilizes a multi-layer orange or blue reinforced rubber (EPDM/chloroprene rubber) for superior anti-leakage and anti-aging performance.
Q3: Can these couplings handle pipeline movement and thermal expansion?
Yes. The flexible joint design allows for a 3° to 5° angular deflection and compensates for thermal expansion and contraction within the pipeline system, preventing pipe cracks and joints loosening.
Q4: What sizes do you offer, and do you support custom orders?
We supply standard sizes ranging from DN50 to DN300. Additionally, we support custom thickness and width requirements to meet specific engineering demands.
Q5: Can these couplings transition between different pipe materials?
Yes, they are suitable for W-type hubless cast iron drain pipes and can also be used as transition joints between cast iron pipes and PVC DWV pipes.
Q6: What quality control procedures do the products undergo before shipping?
Our products undergo rigorous raw material testing (stainless steel thickness and rubber aging tests) and a finished product hydraulic leakage test under 0.3MPa pressure. We also support third-party pre-shipment inspections upon request.