Heavy Duty Stainless Steel 304 No Hub Coupling Connector - China Suppliers Factory for Cast Iron Drainage Pipes
⭐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 (FAQ)
Are your heavy duty no hub couplings UPC certified?
Yes, our couplings are fully UPC and CSA certified, complying with ASTM A888 standards, making them suitable for North American construction projects.
What materials are used in the construction of these couplings?
The band is made of high-quality 304 stainless steel. The gasket is manufactured using EPDM or chloroprene rubber featuring an orange or blue reinforcement layer for enhanced sealing and aging resistance.
What sizes do you offer for the no hub couplings?
We supply standard sizes ranging from DN50 up to DN300. Custom thickness and width specifications can also be supported based on project requirements.
Do these couplings support pipeline deflection and expansion?
Yes, the flexible joint design allows for 3° to 5° of angular deflection and compensates for thermal expansion within the pipeline system.
What pressure testing do these products undergo?
Every batch of finished products undergoes a hydraulic leakage test under a working pressure of 0.3MPa to ensure reliable and leak-free performance.