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Changzhou Zhongjia Plastic Industry Co., Ltd.
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  • PVC-U Union
  • PVC-U Union

PVC-U Union

Brand: 
Zhongjia

Material: 
PVC-U

Size: 
DN15 to DN100

Technique: 
Injection

Connector type: 
Socket

Color: 
Dark gray

Standard: 
DIN standard

Nominal Pressure: 
PN16

Origin: 
China

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  • Description

  • Additional info.

  • Size Guide


  • Product Description:
    ● Shape: Straight; Inner Diameter: 20mm to 110mm.
    ● Advantage: UPVC rotatable connectors with EPDM sealing o-rings feature smooth surface, odorless, neutral, lightweight, and watertight, do not corrode or crack easily and last for a long time even with zero maintenance.
    ● Instruction: The socket openings are bonded by UPVC special glue. Apply glue on the inside and outside of the pipe, then insert within 1 minute, set in 15 minutes, and use after 24 hours for better effect.
    ● Application: Union pipe fittings are great for connecting two unthreaded plumbing pipes in different outside diameters requiring high tensile and impact strength. Widely used in building construction, bathrooms, kitchens, sinks, laboratories, etc.
    ● Notice: Please confirm the correct size before ordering.

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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 UPVC Socket Union Manufacturers and Custom UPVC Socket Union 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 Union Industry knowledge

In modern piping systems, reliable, secure, and durable connections are crucial for stable fluid flow. Zhongjia’s UPVC Union (PVC-U Union/UPVC Straight Union), with its high-quality materials, precision craftsmanship, and rigorous standards, is an ideal connection solution for industrial, construction, and residential piping systems.

I. Product Overview
Zhongjia UPVC Unions are made from high-quality PVC-U (rigid polyvinyl chloride) material and molded in one step using an advanced injection molding process. The result is a smooth exterior and interior, stable mechanical properties, and excellent corrosion resistance and sealing. Available in sizes from DN15 to DN100, with inner diameters from 20mm to 110mm, they meet the needs of connecting pipes of varying diameters. DIN standards are implemented, with a pressure rating of PN16, ensuring a secure connection even under high pressure.

II. Product Features
High-Quality Materials
Used PVC-U material, it is lightweight, high-strength, corrosion-resistant, and scale-resistant. Compared to metal fittings, UPVC unions are immune to rust from acid and alkali corrosion, nor do they suffer from scale deposits that reduce flow efficiency.

Structural Advantages

Straight-through design, suitable for installation in various straight pipes.

Swivel connection structure, combined with EPDM rubber seal, ensures high air and water tightness.

Smooth internal and external surfaces ensure low fluid resistance, prevent impurity retention, and reduce energy consumption.

Outstanding Performance
Reliable Sealing: The EPDM seal ensures leak-proof connections, suitable for high water pressure and chemical environments.

High Durability: Resists cracking or deformation, maintaining excellent performance even with zero maintenance.

Environmentally Friendly and Odorless: The material is non-toxic and harmless, suitable for drinking water and other safety-critical piping systems.

Easy to Use
During installation, use UPVC-specific glue. Simply apply the glue evenly to the inside and outside of the pipe. Insert within 1 minute, secure in place within 15 minutes, and be ready for use 24 hours.
Simple and quick installation, significantly reducing labor and time costs.
III. Instructions
The Zhongjia UPVC Union utilizes a sleeve-type connection method. Before installation, ensure the pipe cut is smooth and clean. Apply the special glue evenly to the joint between the union and the pipe, then quickly insert and adjust the position. Once the glue cures, a secure connection is formed. The detachable union allows for easy removal and reinstallation during pipe maintenance, cleaning, and replacement, greatly enhancing the flexibility and maintainability of the piping system.

IV. Applications
Due to its excellent chemical resistance, water resistance, and sealing properties, Zhongjia UPVC Unions are widely used in:

Construction Engineering: Used in building water supply networks, drainage systems, and cooling water circulation pipes.
Civil Facilities: Used in water supply and drainage systems in kitchens, bathrooms, sinks, and other areas.
Laboratories: Used in chemical laboratory piping systems for the safe transport of acidic and alkaline media.
Industrial: Used in water treatment, food processing, and chemical plant piping, particularly suitable for high-strength, impact-resistant environments.
Agriculture and Horticulture: Used in irrigation systems, greenhouse piping, and other applications requiring lightweight and durable connections.
V. Advantages
Brand Guarantee: Originated from Zhongjia, a renowned Chinese pipe manufacturer, our strict quality control system ensures the stable performance of each product.
International Standards: Compliant with DIN international standards, suitable for the global market.
Cost-Effective: Compared to metal fittings, UPVC unions are lightweight, easy to install, and have lower transportation and construction costs. Long Service Life: Able to withstand long-term use at room temperature and in chemically corrosive environments, requiring virtually no maintenance.
VI. Conclusion
With increasing demands for safety, durability, and environmental protection, Zhongjia UPVC Union, with its high-quality materials, precision craftsmanship, and superior performance, has become the preferred solution for industrial and residential pipe connections. Whether it’s building water supply or chemical fluid transportation, it provides reliable, durable, and efficient connections. Choosing Zhongjia means choosing a guarantee of stability, safety, and high quality.