CNG supplies high-quality 3 inch flexible pipe couplings designed for reliable, leak-proof, and cost-efficient pipe connections. Our couplings are widely used in drainage systems, wastewater plants, ventilation ducts, industrial piping, plumbing renovations, and building infrastructure projects.
They deliver excellent sealing performance, corrosion resistance, and compatibility across multiple pipe materials including , Cast Iron, Stainless Steel, Copper, and more.
If your project requires a strong, durable, and flexible connection solution, CNG provides grooved couplings that help reduce maintenance risks and improve long-term pipeline efficiency.
Excellent resistance to aging, chemicals, and corrosion
Suitable for hot water, cold water, wastewater, and industrial liquids
Ensures long-lasting sealing under continuous operation
High tensile strength and rust-proof properties
Strong clamping force for secure sealing under pressure
Optional heavy-duty banding for demanding environments
CNG flexible couplings connect different pipe materials with ease:
PVC | HDPE | Cast Iron | Stainless Steel | ABS | Copper | Concrete
Ideal for system upgrades, retrofits, and repairs.
No welding, no heating, no special tools needed.
Just tighten the clamps and the connection is complete—saving time, labor, and installation costs.
Absorbs:
Pipe misalignment
Thermal expansion or contraction
Vibration from pumps, motors, or flow impact
This ensures a stable and quiet piping system.
| Item | Description |
|---|---|
| Product | Flexible Pipe Coupling |
| Size | 3 inch (DN80) |
| Rubber Material | EPDM / NBR |
| Clamp Material | SS304 / SS316 |
| Temperature Range | -20°C to +120°C |
| Working Pressure | 6–10 bar (higher rating available) |
| Standards | ASTM / EN / DIN / ISO available |
| Options | Heavy-duty, oil-resistant, high-temperature, customized sizes |
CNG couplings are suitable for:
Drainage & Sewage Systems
Building Plumbing & Renovation Projects
Ventilation & Air Ducting
Industrial Fluid Transfer Lines
Pump Rooms & Mechanical Plants
Underground Piping Networks
Pipeline Repair & Emergency Maintenance
They offer a reliable solution wherever strong sealing and quick installation are required.
Over 10 years of expertise in pipeline connection products
Stable quality with strict material and pressure testing
Flexible OEM/ODM support for engineering contractors and distributors
Fast delivery & competitive manufacturing prices
Technical support for project customization
CNG helps customers reduce pipeline leakage risks, cut installation time, and enhance whole-system reliability.
Need bulk orders, project customization, or technical advice?
Contact CNG for specifications, pricing, and samples.
CNG – Your trusted supplier for flexible pipe connection solutions.
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