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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Flexible Copper Connector

Flexible Copper Connector

-- Steady & Reliable Manufacturer --

The Vibration-Absorbing Link for Mechanical Systems

Flexible copper connectors, often referred to as "Vibration Absorbers" or "Pump Connectors," are critical components designed to bridge the gap between rigid piping and vibrating equipment. In any mechanical system—whether it’s a massive commercial chiller or a residential heat pump—the compressor and pumps generate significant kinetic energy. If these machines are connected directly to rigid copper pipes, the vibration will travel through the entire building, causing noise pollution and, more dangerously, "Stress Corrosion Cracking" at the pipe joints. At Zhejiang Jingliang, our flexible connectors are engineered to solve this. They typically consist of a corrugated copper or bronze inner core, reinforced with a high-tensile copper wire braid. This construction allows the connector to flex in multiple directions while maintaining the high-pressure rating required for modern refrigerants.

The "Secret Sauce" of a high-quality flexible connector lies in the brazing of the end-fittings. We use high-silver-content solder to ensure that the transition from the flexible braid to the rigid copper tail is leak-proof and resistant to thermal shock. Every connector is "Helium Leak Tested" to ensure it can hold a vacuum—a necessity for modern HVAC systems. Our connectors are designed to be "Short and Stout," providing maximum flexibility in a minimal footprint. They are also incredibly useful for "Thermal Expansion" compensation. As pipes heat up and cool down, they expand and contract; our flexible connectors act as a "bellows," absorbing this movement and preventing the pipes from buckling or tearing away from their wall mounts. By integrating Jingliang flexible connectors, you are effectively "decoupling" your machinery from your infrastructure, ensuring a whisper-quiet and long-lasting installation.

Flexibility & Pressure Specifications

PropertyFlexible Connector Data
Core MaterialCorrugated Bronze / C12200 Copper
Braid MaterialC11000 High-Tensile Copper Wire
End FittingsSolid Copper Tails (C12200)
Max Working PressureUp to 650 PSI (45 Bar)
Burst Pressure≥ 2,500 PSI
Temperature Range-40°C to +120°C
Max Offset (Lateral)Up to 15mm (depending on length)
Connection TypesSweat (Oils), Flare, or Press-fit
Testing StandardUL Listed / CE Certified
Vacuum RatingDown to 20 Microns

HVAC Isolation and Industrial Pump Links

The most common application for flexible copper connectors is in "HVAC Refrigeration Lines," specifically on the suction and discharge lines of compressors to prevent vibration transfer. They are essential in "Hydronic Pumping Stations," connecting the main headers to the circulating pumps. In "Commercial Kitchens," they are used to connect gas appliances to rigid supply lines, allowing for slight movement during cleaning or maintenance. They are also found in "Standby Generator" cooling systems, where engine vibration would otherwise destroy rigid piping. In "Industrial Air Compressors," they serve as the primary link to the air receiver tank. Additionally, they are used in "Laboratory Gas Systems" where isolation from building vibration is necessary for sensitive analytical measurements. Any system that involves a motor, a pump, or a compressor requires these connectors to ensure "Acoustic Isolation" and mechanical longevity.

Vibration Dampening and Stress Relief

The primary advantage is "Noise and Vibration Reduction," which is crucial for systems located near occupied spaces in hotels or hospitals. They provide "Stress Relief" for the entire piping network by absorbing the "Thermal Expansion and Contraction" that occurs during system cycles. Our connectors offer "Superior Fatigue Resistance," having been tested to withstand millions of vibration cycles without failure. The "Braided Reinforcement" ensures that the corrugated core does not "squirm" or elongate under high pressure, maintaining the "Structural Integrity" of the link. Installation is "Fast and Simple" because the flexibility allows for slight misalignments between the pipe and the equipment, "Eliminating the Need for Precise Pipe Bending." Furthermore, our use of "High-Purity Copper" ensures that these connectors are fully compatible with all modern lubricants and refrigerants, including POE oils and R-410A or R-32.

Secure Packaging for Engineered Components

Because these are precision-engineered components, each flexible connector is individually bagged and placed in a partitioned carton to prevent the copper braid from rubbing against other units. For bulk orders, these cartons are palletized and shrink-wrapped. Payment terms are 30% T/T and 70% against B/L. We offer shipping via "Express Air" for urgent repair parts or sea freight for large-scale construction projects. Each batch comes with a "Pressure and Vacuum Test Certificate." We also offer "Custom Lengths" to meet specific architectural requirements, with a typical lead time of 2-3 weeks for non-standard sizes. Our logistics team ensures that all connectors are handled with care to prevent "Over-Bending" during the loading process, which could damage the internal corrugations.

  • Q: Can these be used for steam?
  • A: No, for high-pressure steam, stainless steel flexible connectors are generally required. These copper/bronze units are optimized for refrigeration, gas, and water.
  • Q: How should I orient the connector?
  • A: For best results, they should be installed parallel to the crankshaft of the compressor and as close to the vibration source as possible.
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 Connector and Flexible Copper Connector 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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