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Heavy Duty Stainless Steel C-Type Pipe Coupling Flexible Connector for Drainage Repair – China Suppliers & Factory
Product Overview
This heavy-duty CHA-type flexible pipe coupling is a professional pipeline connecting and repairing fitting, widely used in residential, commercial and municipal drainage engineering. The whole sleeve is rolled from thick stainless steel, equipped with corrugated NBR rubber inner gasket and double high-strength hex locking bolts. It realizes flexible sealing connection without welding, glue or flange, effectively absorbing pipe thermal expansion, vibration and foundation settlement to avoid pipeline cracking and water leakage.
Key Features
1
Stainless Steel Heavy Body
201/304 stainless steel thickened cylinder, anti-rust, acid & alkali resistance, suitable for underground wet pipeline environment.
2
Multi-Layer Corrugated NBR Rubber Liner
Elastic buffer design, compensate pipe displacement, isolate vibration, excellent sealing performance against sewage and wastewater.
3
Double Hexagon Bolt Locking System
Uniform pressure distribution, tight fit without gap, easy manual tightening, stable long-term sealing effect.
4
Wide Compatibility
Fit cast iron pipe, PVC-U, HDPE drainage pipe with matching outer diameter, one coupling for multiple pipe types.
5
Fast Installation & Emergency Repair
No fire operation, no adhesive, direct sleeve on pipe joint or crack for quick leak fixing, greatly save construction time and labor cost.
Material & Specifications
- Outer Shell: 201 / 304 Stainless Steel
- Sealing Gasket: NBR Corrugated Rubber
- Locking Hardware: Galvanized Carbon Steel Hex Bolt
- Standard Sizes: DN50, DN75, DN100, DN150, DN200 (2"~8")
- Custom Service: Custom diameter, wider cylinder height, customized logo acceptable
Application Fields
- Building Drainage: Toilet, kitchen vertical cast iron drainage pipe connection
- Municipal Sewer: Community rain & sewage pipeline renovation, underground pipe emergency repair
- Industrial Factory: Waste water, process fluid rigid pipeline connection
- Old Pipeline Retrofit: Cracked pipe leakage quick maintenance project
Packaging & Delivery
- Package: Export standard carton with plastic bag inner packing
- Lead Time: 5-10 working days for bulk order
- Sample Support: Small sample order available for quality test
- Shipment: Sea, air, express delivery to global markets
Frequently Asked Questions
What materials are compatible with the CHA-type flexible pipe coupling?
The CHA-type flexible pipe coupling is highly versatile and compatible with multiple pipe materials, including cast iron, PVC-U, HDPE, and other drainage pipes with matching outer diameters.
Is this coupling suitable for underground installation?
Yes. The outer sleeve is made of thickened 201 or 304 stainless steel, which offers superior resistance to rust, acid, and alkali. This makes it ideal for wet, underground, and harsh soil environments.
Does the installation require welding or special tools?
No welding, glue, or flanges are needed. The coupling features a double hexagon bolt locking system that can be quickly tightened using standard manual hex tools, allowing for fast installation and emergency repairs.
How does the coupling handle pipe thermal expansion and vibration?
It features a multi-layer corrugated NBR rubber gasket that provides an elastic buffering effect. This structure absorbs vibration, accommodates thermal expansion/contraction, and compensates for minor foundation settlement to prevent pipe cracking.
Can I customize the size and logo for bulk orders?
Yes, we provide custom services for bulk orders, including customized pipe diameters, wider cylinder heights, and customized logo options to fit specific engineering needs.