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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Copper Fittings & Connectors

Copper Fittings & Connectors

-- Steady & Reliable Manufacturer --

The Precision Links in Modern Piping Networks

Copper fittings and connectors are the essential components that turn individual lengths of pipe into a functional, integrated system. Whether it is a simple 90-degree elbow, a complex tee, or a specialized coupling, the quality of the fitting determines the overall integrity and leak-resistance of the entire installation. At Zhejiang Jingliang, our fittings are manufactured through advanced cold-forging and high-precision machining processes using the same high-purity C12200 phosphorus-deoxidized copper as our tubing. This material parity is crucial; by using identical alloys for both the pipe and the fitting, we ensure that thermal expansion coefficients are matched and that brazing or soldering creates a molecularly sound, permanent bond. Our fittings are designed to meet international standards such as ASME B16.22 and EN 1254, ensuring a perfect fit with both inch and metric-sized tubing globally.

The manufacturing of copper connectors requires extreme attention to "Tolerance Management." A fitting that is slightly too loose will require excessive filler metal during brazing, while one that is too tight can lead to stress fractures or incomplete joint penetration. Our automated CNC production lines maintain tolerances within microns, ensuring that every socket has the ideal "capillary gap" to pull in molten solder or brazing alloy effectively. Furthermore, for the HVAC and medical gas industries, our fittings undergo the same rigorous degreasing and cleaning as our premium tubes. This prevents contaminants from entering the system at the joints—the most vulnerable points in any network. From standard wrought copper fittings to heavy-duty forged brass connectors, we provide the full spectrum of components needed to navigate the complex geometries of modern building infrastructure.

Technical Parameters & Dimensional Specs

Fitting PropertySpecification Detail
Material GradeC12200 (Wrought) / C37700 (Forged Brass)
Applicable StandardsASME B16.22, EN 1254-1, JIS B2311
Connection TypesSolder/Brazing, Press-fit, Compression, Flare
Pressure RatingMatches or Exceeds Grade L/Type L Tubing
Temperature Range-200°C to +250°C (Depending on jointing)
Internal FinishSmooth Bore (Minimizes Flow Resistance)
Cleanliness LevelDegreased for Oxygen/Refrigerant Service
Wall ThicknessHeavy-duty industrial wall (ASME Compliant)
MarkingStandard, Size, and Manufacturer ID

Applications in Fluid and Gas Transport

Copper fittings are used in every industry that utilizes copper tubing. In residential plumbing, they are used for water distribution and gas line manifolds. In the HVACR sector, they are critical for the assembly of evaporator coils, condenser headers, and the connection of line sets to outdoor units. Our specialized "Short Radius" and "Long Radius" elbows are particularly popular in the manufacturing of compact heat exchangers where space is limited. In the medical gas industry, our cleaned and bagged fittings are used for creating leak-proof oxygen and vacuum networks in hospitals. They are also found in industrial hydraulic systems, where high-pressure connectors are required to manage fluid power. Furthermore, our "Press-fit" connectors are increasingly used in commercial renovations where "no-flame" installations are required for safety, allowing for rapid assembly without the use of a torch.

Key Advantages of Wrought Copper Fittings

The most significant advantage of our wrought copper fittings is their "Seamless Strength." Because they are formed from a single piece of copper, they have no seams or welds to fail under pressure. This makes them significantly safer than cast or welded alternatives. Another advantage is "Corrosion Consistency." Using copper fittings with copper pipe prevents galvanic corrosion, which can occur when dissimilar metals are joined. Our fittings also feature a "Smooth-Flow" interior design, which reduces turbulence and noise—a major factor in high-end residential and hotel plumbing. For the contractor, the precision of our sockets means fewer leaks and faster project completion. Additionally, copper is naturally antimicrobial, meaning the joints in a water system do not become breeding grounds for bacteria. Finally, our fittings are fully recyclable, contributing to the lifecycle sustainability of the building's utility systems.

Global Distribution and Wholesale Support

We supply copper fittings in bulk quantities to wholesalers, retailers, and large-scale project contractors. To prevent damage to the precision sockets during shipping, we pack our fittings in thick plastic bags which are then placed in reinforced, double-walled cardboard boxes and palletized. We offer private-label packaging and barcode services for retail-ready distribution. Payment is generally T/T or L/C at sight. We maintain a vast inventory of standard elbows, tees, and couplings to ensure immediate shipment for urgent project needs. For specialized industrial applications, we can manufacture custom fittings based on your CAD drawings or physical samples. All shipments include a Certificate of Conformity ensuring the fittings meet the required mechanical and chemical standards for your specific market.

  • Q: Can I use your fittings with both R410A and R32?
  • A: Yes, our wrought copper fittings are rated for the high pressures required by all modern high-pressure HFC and HFO refrigerants.
  • Q: What is the difference between wrought and cast fittings?
  • A: Wrought fittings are made from copper tube/strip and are thinner, smoother, and stronger. Cast fittings are thicker and used for larger industrial sizes, usually made of brass or bronze.
  • Q: Are your fittings compatible with press-tools?
  • A: We offer a specific line of "Press-fit" connectors equipped with O-rings that are designed for use with standard V-profile or M-profile press tools.
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 Copper Fittings & Connectors and Copper Fittings & 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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