Youtube Facebook
408590707@qq.com
Whatsapp Wechat
+86-0519-88712081
Changzhou Zhongjia Plastic Industry Co., Ltd.
Home > Products > PVC-U > PVC-U Fittings for Water Supply > PVC-U Copper Threaded Coupling

Product Category

How can we help you?
If you need help, please feel free to contact us.
  • PVC-U Copper Threaded Coupling
  • PVC-U Copper Threaded Coupling
  • PVC-U Copper Threaded Coupling

PVC-U Copper Threaded Coupling

Brand: 
Zhongjia

Material: 
PVC-U

Size: 
φ20mm*1/2”-φ25mm*3/4”

Technique: 
Injection moulded

Connection:
Socket

Color: 
Light gray, White

Standard: 
DIN standard

Nominal Pressure: 
PN10

Origin: 
China

PREV：PVC-U Copper Threaded 90° Elbow NEXT：PVC-U Repair Saddle

  • Description

  • Additional info.

  • Size Guide

  • PVC-U pipes & fittings have gained in popularity and has become a top choice in plumbing around the world. it is a very resilient material. It is abrasion-resistant, chemical resistant, and can withstand many different weather conditions. These copper threaded couplings have a diameter from 20mm*1/2” to 25mm*3/4”.


    Product Features and Advantages:
    ● Exceptional Strength and Ductility
    ● High Impact Resistance
    ● Better flow characteristics, Low flow resistance
    ● Corrosion Resistant
    ● Light Weight, Installation savings
    ● Material & Energy efficient, Recyclable

Leave Us A Message

Related Product
About Us
Changzhou Zhongjia Plastic Industry Co., Ltd.
Changzhou Zhongjia Plastic Industry Co., Ltd. was established in 2006. It is an enterprise specializing in the research, development, production and sales of UPVC, CPVC plastic pipe fittings and valve products. As China PVC-U Copper Threaded Coupling Manufacturers and Custom PVC-U Copper Threaded Coupling Suppliers. Our featured products are plastic products such as UPVC/CPVC pipes, pipe fittings and valves. At present, we mainly supply industrial and water supply series pipes, pipe fittings and valves that meet national standards, American standards. Our products are sold to Southeast Asia, the Middle East, Africa, North America, South America, and are widely used in industry, agriculture, construction and other fields.
Our company is located in the Xueshuxiang Industrial Concentration Zone, Yaoguan Town, Wujin District, Changzhou City, Jiangsu Province. The area is close to the Shanghai-Chengdu Expressway for 10 kilometers, the Yangtze River Expressway for 15 kilometers, the Changzhou High-speed Railway Station for 15 kilometers, and Shanghai for 160 kilometers. It has convenient transportation and environment.
The company covers an area of 50,000 square meters and has an annual production capacity of more than 30,000 tons. The company has passed ISO9001, ISO14001, and OHSAS18001 system certification. It has 4 raw material mixers, 60 plastic injection molding machines, 8 pipe extrusion production lines, 10 mechanical processing equipment, and more than 3,000 sets of molds. At present, we have 150 employees, including 10 technicians. With the continuous development and increasing internationalization of the company, we are committed to attracting talents and preparing for vigorous development.
The company adheres to the market-oriented, quality-oriented, service-oriented, introduces advanced production equipment and technology, makes products, creates brands, and has won the trust and recognition of customers. It has now become one of the green and vital pipeline production enterprises at home and abroad. We will always focus on customer satisfaction, follow the business principles of "modernization, youth, and knowledge", strive to catch up with the advanced level of the same industry at home and abroad, and strive to create a Chinese brand.
We sincerely welcome domestic and foreign customers to our company to discuss cooperation!
Certificate Of Honor
News
PVC-U Copper Threaded Coupling Industry knowledge

Why Is the PVC-U Copper Threaded Coupling a Reliable and Efficient Choice for Modern Plumbing Systems?

The PVC-U Copper Threaded Coupling, produced by Zhongjia, is a high-performance plumbing fitting that bridges the gap between traditional metal components and modern thermoplastic systems. Combining the mechanical strength of copper threads with the durability and chemical resistance of unplasticized polyvinyl chloride (PVC-U), this coupling offers a secure, leak-proof connection between pipes in water supply, irrigation, and industrial systems. Engineered to DIN standards and rated at PN10 pressure, it provides a dependable, corrosion-resistant, and easy-to-install solution for a wide range of piping applications.

Product Overview

The Zhongjia PVC-U Copper Threaded Coupling is designed for joining PVC-U pipes with copper or brass fittings through a socket connection. This hybrid design ensures mechanical stability while maintaining resistance to corrosion and chemical attack. The couplings are manufactured using injection molding technology, ensuring precision, dimensional accuracy, and consistent quality across all units.

Available in sizes from φ20mm × 1/2” to φ25mm × 3/4”, the coupling features a light gray or white finish that meets standard plumbing aesthetics. With a nominal pressure rating of PN10, it is suitable for both residential and commercial water distribution systems.

Understanding the Material — PVC-U and Copper Integration

PVC-U (Unplasticized Polyvinyl Chloride) is a rigid thermoplastic known for its strength, toughness, and resistance to chemicals and corrosion. It has long been used in piping systems due to its superior mechanical properties and environmental stability. When combined with copper threads, the coupling leverages the best attributes of both materials — the corrosion-resistant, lightweight nature of PVC-U and the mechanical reliability and high-temperature tolerance of copper.

This combination allows the fitting to provide tight, reliable connections where plastic and metal systems meet, ensuring a secure interface between different pipeline materials.

Key advantages of PVC-U material include:

  • No corrosion or rusting, even in aggressive water conditions.
  • Non-toxic and lead-free, safe for potable water applications.
  • Excellent resistance to UV exposure and weathering.
  • Low thermal conductivity, reducing condensation on cold water lines.
  • Recyclable and environmentally friendly, contributing to sustainability.

Applications of PVC-U Copper Threaded Coupling

The versatility and mechanical strength of the Zhongjia PVC-U Copper Threaded Coupling make it suitable for a wide variety of plumbing and industrial uses. Its dual-material design allows it to be applied in both plastic and metallic piping systems.

Typical applications include:

  • Residential water supply systems — for connecting household water lines to copper or brass valves and fixtures.
  • Commercial plumbing systems — for integrating PVC-U pipelines into mixed-material networks.
  • Irrigation systems — due to its resistance to corrosion and weather conditions.
  • Industrial fluid transport — ideal for low to medium pressure chemical delivery lines.
  • Cooling systems — where corrosion resistance and low friction are essential for efficient operation.

Because of its hybrid construction, it provides a reliable sealing interface between plastic and metallic pipe networks, reducing the risk of leaks or pressure loss.

Key Features and Advantages

a. Exceptional Strength and Ductility

The combination of rigid PVC-U and strong copper threads provides a robust, impact-resistant connection. PVC-U offers high tensile strength, while the copper threading ensures secure mechanical fastening. This balance of ductility and strength enables the coupling to resist cracking under stress or fluctuating temperatures.

b. High Impact Resistance

Injection-molded PVC-U fittings are engineered for durability. They can withstand accidental impacts or vibration without deformation or breakage, making them suitable for demanding installation environments such as industrial plants or outdoor irrigation systems.

c. Better Flow Characteristics and Low Flow Resistance

The smooth internal surface of the PVC-U coupling minimizes friction losses, ensuring efficient fluid flow through the piping system. This smoothness reduces turbulence, pressure drop, and scaling, resulting in lower energy costs for pumping and longer pipe service life.

d. Corrosion Resistance

Unlike traditional metal couplings, which can corrode over time when exposed to water, acids, or salts, PVC-U is chemically inert. The copper threads are isolated from water flow by the PVC-U body, preventing galvanic corrosion. This ensures long-lasting performance, especially in environments with high humidity or chemical exposure.

e. Lightweight and Cost-Effective Installation

PVC-U fittings are significantly lighter than their metal counterparts, simplifying handling and installation. The socket connection system enables quick assembly with solvent cement, while the copper threads ensure a tight and reliable metal-to-plastic joint. This reduces labor costs and installation time — a major advantage for large-scale projects.

f. Material and Energy Efficiency

PVC-U is a low-energy material to produce, requiring less energy during manufacturing compared to metals. Moreover, its recyclable nature makes it environmentally sustainable. These characteristics make PVC-U fittings both economically and ecologically efficient, aligning with modern green building practices.

Installation and Compatibility

The installation of a PVC-U Copper Threaded Coupling is straightforward and does not require specialized tools. The steps typically include:

  1. Clean and prepare the PVC-U pipe and ensure the copper thread is free from oil or debris.
  2. Apply PVC-U solvent cement to the socket joint and insert the pipe.
  3. Screw the copper-threaded end into the corresponding metal fitting, ensuring it is hand-tightened and then gently secured using a wrench.
  4. Allow proper curing time for the solvent joint before pressurizing the system.

Because of its DIN-standard dimensions, the coupling is compatible with most PVC-U pipes and metal fittings used in water supply networks worldwide.

Performance and Longevity

The Zhongjia PVC-U Copper Threaded Coupling is built for long-term performance in demanding environments. Its corrosion-resistant construction eliminates the risk of metal degradation and scale buildup, while the tight sealing ensures zero leakage over time.

It is suitable for both cold and warm water systems, and its PN10 rating allows it to withstand pressures up to 10 bar, ensuring safety and reliability under normal operating conditions.

The durability of the PVC-U material ensures that fittings can last for decades without replacement, significantly reducing maintenance and repair costs.

Environmental and Economic Benefits

PVC-U fittings like this copper-threaded coupling support sustainable plumbing practices. They are energy-efficient to manufacture, lightweight to transport, and 100% recyclable at the end of their service life. The reduction in installation labor, minimal maintenance requirements, and long service life collectively lead to substantial cost savings for both contractors and end users.

Moreover, the use of solvent-welded and threaded joints eliminates the need for energy-intensive welding or mechanical fastening, reducing environmental impact and simplifying installation.

Conclusion

The Zhongjia PVC-U Copper Threaded Coupling exemplifies the integration of modern polymer technology with traditional metal reliability. Engineered to deliver exceptional strength, corrosion resistance, and flow efficiency, it offers a safe and durable connection solution for both domestic and industrial plumbing systems.

Its lightweight, easy-to-install design, combined with long service life and recyclability, makes it a cost-effective and environmentally friendly choice for modern infrastructure projects. Whether used in residential water supply, irrigation, or industrial piping, this coupling ensures optimal performance, reduced maintenance, and enduring reliability — setting a new standard in hybrid plumbing connections.