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Сильный нержавеющий стальной C-образный соединитель для труб: поставщики и фабрика в Китае для ремонта дренажных труб
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
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Stainless Steel Heavy Body
201/304 stainless steel thickened cylinder, anti-rust, acid & alkali resistance, suitable for underground wet pipeline environment.
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Multi-Layer Corrugated NBR Rubber Liner
Elastic buffer design, compensate pipe displacement, isolate vibration, excellent sealing performance against sewage and wastewater.
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Double Hexagon Bolt Locking System
Uniform pressure distribution, tight fit without gap, easy manual tightening, stable long-term sealing effect.
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Wide Compatibility
Fit cast iron pipe, PVC-U, HDPE drainage pipe with matching outer diameter, one coupling for multiple pipe types.
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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
1. Building Drainage: Toilet, kitchen vertical cast iron drainage pipe connection
2. Municipal Sewer: Community rain & sewage pipeline renovation, underground pipe emergency repair
3. Industrial Factory: Waste water, process fluid rigid pipeline connection
4. 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 (FAQ)
What are the main materials used in the CHA pipe coupling?
The outer shell is made of thickened 201 or 304 stainless steel. The inner sealing gasket is made of corrugated NBR (Nitrile Butadiene Rubber), and the locking system uses galvanized carbon steel hex bolts for high-strength fastening.
Can this flexible coupling be used for underground applications?
Yes. The thickened stainless steel body provides excellent rust prevention and acid/alkali resistance, making it highly suitable for underground wet pipeline environments and municipal sewer renovations.
Which types of pipes are compatible with the CHA coupling?
It features wide compatibility and is designed to fit cast iron pipes, PVC-U, and HDPE drainage pipes, provided they have a matching outer diameter.
Does the installation require welding or special adhesives?
No welding, glue, or flange is required. The coupling can be directly sleeved onto the pipe joint or crack, and the double hexagon bolts can be tightened manually or with basic tools for a fast, leak-proof seal.
What standard sizes are available, and is customization supported?
Standard sizes range from DN50 to DN200 (2" to 8"). We also offer custom services, including custom diameters, wider cylinder heights, and customized logos.
How does the coupling handle thermal expansion and vibration?
The multi-layer corrugated NBR rubber liner acts as an elastic buffer. It compensates for pipe displacement, absorbs vibration, and accommodates foundation settlement to prevent pipeline cracking.