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Changzhou Zhongjia Plastic Industry Co., Ltd.
Home > Products > PVC-U > PVC-U Fittings for Water Supply > PVC-U One-piece Flange

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  • PVC-U One-piece Flange
  • PVC-U One-piece Flange
  • PVC-U One-piece Flange
  • PVC-U One-piece Flange

PVC-U One-piece Flange

Brand: 
Zhongjia

Material: 
PVC-U

Size: 
φ20mm-φ250mm

Technique: 
Injection moulded

Connector type: 
Socket

Color: 
Light gray, Dark gray, White

Standard: 
DIN standard

Nominal Pressure: 
PN10

Origin: 
China

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  • Description

  • Additional info.

  • Size Guide

  • PVC-U one-piece flanges are a “integrated” flange. The flange has a slip socket ends for solvent weld, the other end are with flange backing rings with flange holes, which allow a flanged connection to the other accessories.


    Product Features and Advantages:
    ● Acid and alkali resistance.
    ● Excellent corrosion resistance.
    ● Anti-scouring, Impact Strength
    ● Light weight, easy to install and maintain.
    ● Excellent quality, favorable price.
    ● UV resistant / stabilized.
    ● Easy to install.
    ● Environment-friendly.
    ● Smooth interior walls provide a high consistent flow rate and low friction loss.

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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 PVC-U One-piece Flange Socket Manufacturers and Custom PVC-U One-piece Flange Socket 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!
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PVC-U One-piece Flange Industry knowledge

In fluid handling and piping systems, flanges are critical components that enable the secure joining of pipes, valves, pumps, and other equipment. Among different flange types, the PVC-U one-piece flange stands out for its simplicity, durability, and versatility in plastic piping systems. Zhongjia PVC-U One-piece Flanges provide a reliable, cost-effective solution for piping connections in residential, industrial, and agricultural applications.

1. Material Advantages of PVC-U
PVC-U (Unplasticized Polyvinyl Chloride) is a rigid, high-performance plastic widely used in piping and fittings due to its excellent mechanical and chemical properties. The advantages of PVC-U material in flange applications include:

Chemical Resistance
PVC-U is highly resistant to acids, alkalis, salts, and a wide range of solvents, making it suitable for water supply, wastewater treatment, chemical pipelines, and other environments where metal flanges might corrode.

Lightweight and Easy Handling
Compared to metal flanges, PVC-U flanges are significantly lighter, reducing transportation and installation costs. The lightweight design also simplifies handling during construction and maintenance.

Durability and Long Service Life
PVC-U offers excellent resistance to corrosion, scaling, and UV degradation. A properly installed PVC-U flange can last decades with minimal maintenance, outperforming many traditional materials in longevity.

Environmental and Safety Benefits
PVC-U is recyclable and non-toxic, aligning with sustainable building practices. Its non-conductive nature adds a safety advantage in environments where electrical insulation is important.

2. Product Specifications and Manufacturing Features
Zhongjia PVC-U One-piece Flanges are produced using injection molding technology, which ensures uniform wall thickness, smooth surfaces, and precise dimensions. Key product specifications and features include:

Connection Type: Socket connection, allowing easy integration with PVC-U pipes using solvent welding or adhesive.
Size Range: φ20mm to φ250mm, accommodating both small-scale residential pipelines and larger industrial or municipal systems.
Color Options: Light gray, dark gray, and white, providing flexibility for visual management, identification, or aesthetic requirements.
Standard Compliance: DIN standard, ensuring dimensional consistency, pressure rating reliability, and international compatibility.
Nominal Pressure: PN10, suitable for standard water, wastewater, and chemical pipelines.
The one-piece design eliminates the need for separate components, reducing the number of joints and potential leak points. This simplification improves system reliability and reduces installation time.

3. Functional Advantages and Applications
Zhongjia PVC-U One-piece Flanges offer multiple functional benefits and are widely applicable across various sectors:

Pipe Connection and System Integration
One-piece flanges facilitate the secure connection of pipes to valves, pumps, tanks, and other equipment. This is especially important in systems requiring frequent maintenance or pressure testing.

Sealing and Leak Prevention
By providing a stable and precise mating surface, PVC-U flanges ensure tight sealing when used with gaskets and bolts. This prevents leakage and maintains system efficiency.

Maintenance and System Flexibility
Flanged connections allow sections of a piping system to be easily removed or replaced without cutting the pipe, making maintenance faster and more convenient.

Versatile Applications
Zhongjia PVC-U One-piece Flanges are used in a wide range of piping systems, including:

Water supply networks – domestic, commercial, and municipal pipelines.
Wastewater and sewage treatment – resistance to corrosive substances ensures longevity.
Chemical processing industries – handling non-aggressive to moderately aggressive chemicals safely.
Agricultural irrigation systems – lightweight, durable, and easy to install for sprinklers, pumps, and reservoirs.
Swimming pools and aquaculture systems – resistant to chlorine and other disinfectants.
4. Installation Advantages
Zhongjia PVC-U One-piece Flanges are designed for ease of installation and operational efficiency:

Socket Connection with Solvent Welding
The socket interface allows a strong, leak-proof bond through solvent cement, forming a monolithic structure that eliminates weak points common in mechanical joints.

Reduced Labor and Installation Time
The one-piece design simplifies assembly, reducing the number of components, installation steps, and labor requirements.

Low Maintenance
PVC-U flanges do not corrode, scale, or require painting, minimizing ongoing maintenance efforts and costs.

Noise and Vibration Reduction
The material properties of PVC-U absorb vibrations and dampen operational noise, offering quieter piping systems compared to metal flanges.

5. Comparison with Other Materials
Flanges can also be made from metals such as steel, stainless steel, or cast iron. When compared to these alternatives, PVC-U flanges provide several advantages:

Versus Steel or Cast Iron: PVC-U is lighter, easier to handle, corrosion-resistant, and less expensive.
Versus Stainless Steel: Although stainless steel offers higher pressure and temperature tolerance, PVC-U is more cost-effective and suitable for standard water and chemical applications.
Versus Glass: PVC-U is impact-resistant, easier to install, and less fragile, providing more practical usability in industrial and agricultural contexts.
While metal flanges may be necessary for extremely high-pressure or high-temperature systems, PVC-U flanges strike an ideal balance between performance, cost, and installation convenience for most standard piping applications.

6. Zhongjia Brand Strength
Zhongjia has established itself as a leading manufacturer of high-quality PVC-U fittings and flanges. The brand emphasizes:

Stringent Quality Control: Ensuring dimensional accuracy, pressure ratings, and material consistency.
Comprehensive Product Range: Complete line of complementary fittings including elbows, tees, reducers, end caps, and valves.
International Compliance: DIN standard certification ensures products are compatible with global piping systems.
Customer-Oriented Support: Technical guidance, installation advice, and post-sales service guarantee reliable performance.
Zhongjia’s dedication to quality, innovation, and customer satisfaction has earned the brand recognition both domestically and internationally, making their PVC-U flanges a trusted choice for engineers, contractors, and facility managers.

Conclusion
The Zhongjia PVC-U One-piece Flange is a high-performance piping component designed for secure connections, reliable sealing, and long-term durability. Its lightweight, corrosion-resistant, and cost-effective properties make it ideal for water supply, wastewater management, chemical processing, irrigation, and other piping applications.

With a broad size range (φ20mm to φ250mm), multiple color options, and a socket connection for solvent welding, Zhongjia PVC-U One-piece Flanges provide a practical, efficient, and dependable solution for modern piping systems.

As the global demand for plastic piping solutions grows, Zhongjia’s commitment to quality, precision manufacturing, and customer support ensures that their PVC-U One-piece Flanges continue to serve as a leading choice for safe, durable, and cost-effective piping solutions.