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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Flexible Copper Connectors

Flexible Copper Connectors

-- Steady & Reliable Manufacturer --

Dynamic Solutions for Vibration and Thermal Expansion

Flexible copper connectors, often referred to as "Vibration Eliminators" or "Copper Braid Connectors," are critical components designed to bridge the gap between rigid piping and vibrating machinery. In systems like large-scale compressors, industrial pumps, and power generators, constant mechanical vibration can lead to work-hardening and eventual fatigue failure of standard copper pipes. At Zhejiang Jingliang, our flexible connectors are engineered to absorb these dynamic forces, protecting the integrity of the entire system. We utilize high-purity C11000 or C12200 copper in two primary formats: corrugated seamless tubing and high-density braided wire. These connectors allow for multi-directional movement, providing a "Buffer Zone" that accommodates mechanical oscillation, thermal expansion, and even minor structural shifts in a building or vessel.

The engineering of a flexible connector requires a perfect balance between "Pressure Resistance" and "Flexibility." Our corrugated connectors are formed through a specialized hydraulic process that creates deep, uniform convolutions in the tube wall, allowing it to bend without kinking or losing its cross-sectional area. To handle high pressures, we often reinforce these corrugated tubes with an external sleeve of woven copper or stainless steel braid. This "Multi-Layer" design ensures that the connector can handle the high-pressure pulses of a refrigeration cycle while remaining supple. At Jingliang, every flexible connector is 100% helium-leak tested and cycle-tested to simulate years of mechanical stress. These components are essential for reducing noise, preventing refrigerant leaks, and extending the service life of expensive industrial equipment.

Flexible Connector Engineering Specs

PropertyFlexible Connector Specification
Core MaterialC12200 Corrugated Seamless Copper
Braiding MaterialC11000 Copper or SUS304 Stainless Steel
Max Working PressureUp to 60 Bar (870 PSI) - Size dependent
Temperature Range-200°C to +250°C
End ConnectionsBrazed Copper Sockets or Threaded Brass
Movement CapabilityAxial, Lateral, and Angular Flexibility
Fatigue LifeTested for >50,000 vibration cycles
Internal CleanlinessDegreased for Oxygen/Refrigerant Service
Standard ComplianceUL Recognized, CE, ISO 10380

Applications in Mechanical and HVAC Systems

Flexible copper connectors are primarily used at the Inlet and Outlet of Compressors in air conditioning and refrigeration systems to isolate vibration. They are also vital for Industrial Water Pumps and chillers to prevent the transmission of mechanical noise through the building’s piping network. In the Energy sector, they are used as flexible links in Generator Cooling Systems and transformer radiators. The Automotive industry utilizes them for exhaust heat recovery systems and turbocharger oil lines where extreme heat and vibration coexist. They are also found in Medical Gas systems to provide a safe connection to mobile equipment or vibrating supply tanks. Furthermore, in Seismic Zones, these connectors are used as "Flexible Expansion Loops" to prevent pipe ruptures during minor earth movements. They are also common in laboratory settings where sensitive instruments must be isolated from the vibrations of the building’s main plumbing.

Advantages of Mechanical Isolation

The most critical advantage is "System Failure Prevention"—by absorbing vibration, these connectors prevent the "fatigue cracking" that is the most common cause of leaks in copper piping systems. "Noise Reduction" is another significant benefit; they act as acoustic dampeners, making HVAC systems significantly quieter, which is essential for hospitals and residential buildings. Our connectors offer "High Pressure Integrity," with the braided reinforcement ensuring they do not "snake" or burst under pressure spikes. They also provide "Installation Flexibility," allowing contractors to align pipes that are not perfectly straight, saving time and reducing the need for multiple elbow fittings. Because they are made of high-purity copper, they maintain "Excellent Thermal Conductivity" and are as easy to braze into the system as any standard pipe. Finally, our "Long Fatigue Life" ensures that once installed, these connectors provide a durable, low-maintenance solution for the life of the machine.

Specialized Packaging and Global Delivery

Flexible connectors are high-precision components that must be protected from over-bending during transit. We package each connector in individual protective sleeves and secure them in rigid, foam-lined boxes. Payment is typically T/T or L/C. We ship globally from Ningbo, offering air-freight for urgent repair needs and sea-freight for large OEM production runs. Every shipment is accompanied by a Pressure Test Certificate and a Certificate of Compliance with UL or CE standards. We can also provide "Custom Length" connectors to match your specific machinery footprint. Our logistics team is expert in handling the documentation for "Assembly Parts," ensuring smooth customs clearance and rapid delivery to your assembly line.

  • Q: How do I choose the right length for a flexible connector?
  • A: The connector should be long enough to allow for a gentle "S-curve" or bend; it should never be installed in a straight line under tension, as this reduces its ability to absorb vibration.
  • Q: Can these handle high-temperature steam?
  • A: Our copper flexible connectors are rated for temperatures up to 250°C, making them suitable for low-to-medium pressure steam applications. For higher temperatures, we recommend our stainless steel variants.
ABOUT US
30+YEARS OF
EXPERIENCE
About Us

A Reliable Partner of the Copper Tube Industry

Zhejiang Jingliang Copper-Tube Products Co., Ltd is China Flexible Copper Connectors and Flexible Copper Connectors Factory, which established in 1994, has been deeply involved in the copper tube industry for over three decades. The company primarily produce various specifications of products such as copper tubes, brass tubes, copper square tubes, fin copper tubes, copper capillary tubes, condenser copper tubes, copper evaporator tubes, and conductive rods, which are of quality and have earned the trust and acclaim of customers both domestically and internationally.

Wide Applications:

These products are widely used in various fields including air conditioning, refrigeration, heat exchange, sanitary ware, automotive, machinery, electric furnaces, and chemical industries.

Convenient Transportation:

Strategically located in Tangpu Town, renowned as the “home of copper tubes” in East China. Our company enjoys a prime location, adjacent to the Shangsan Expressway and National Highway 104, and is conveniently situated just over 70 kilometers from Hangzhou and Ningbo, ensuring easy accessibility and a business position.

Strong Financial Resources:

With its strong financial resources and advanced copper tube processing technology, our company holds an advantageous position in market share, brand value, technological content, and product quality, becoming a preferred supplier for many listed groups.

Large Scale Production:

The company occupies an area of over 20,000 square meters, with a construction area of 12,800 square meters. In 2022, our annual production exceeded 7,500 tons, with a value output of up to 450 million yuan, demonstrating our strong production capacity and market competitiveness.

Comprehensive Industry Chain:

Jingliang has now developed into a complete industrial chain integrating smelting, extrusion, drawing, precision rolling, and annealing. It has been awarded multiple honors, including "Top Ten Copper Tube Enterprises" and "Leading Taxpayer in the Copper Tube Industry".

Smart Manufacturing:

Jingliang Copper-Tube Products will better integrate the concept of factory construction into its corporate development strategy, insist on refining technology and polishing products more finely, and the future of "intelligent manufacturing".

Genuine Cooperation:

Zhejiang Jingliang Copper-Tube Products Co.,Ltd warmly welcomes friends from all walks of life to visit and offer guidance. We look forward to joining hands with you to create a brilliant future together.

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