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

PVC-U Spigot Flange

Brand: 
Zhongjia

Material: 
PVC-U

Size: 
φ90mm-φ315mm

Technique: 
Injection moulded

Connector type: 
Socket

Color: 
Light gray

Standard: 
DIN standard

Nominal Pressure: 
PN10

Origin: 
China

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  • Description

  • Additional info.

  • Size Guide

  • PVC-U Spigot flange adapter has a spigot end and the other one is flange end. PVC-U spigot flange allow to connect to the PVC-U pipes that has a “gasketed” end, at the same time, it can make a mechanical joint intended to connect uPVC pipe to any flanged piping components. These Spigot flange adapters have a diameter of 90mm to 315mm.


    Product Features and Advantages:
    ● Hygienic as manufactured from Lead Free PVC compound.
    ● Manufactured from special PVC compound having extra toughness.
    ● High impact strength.
    ● PVC being an inert material more of the chemicals found in soil and water do not affect the casing pipes.
    ● Corrosion resistance.
    ● Smooth bore, hence flow properties.
    ● Longer life.

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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 Spigot Flange Adapter Manufacturers and Custom PVC-U Spigot Flange Adapter 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 Spigot Flange Industry knowledge

In modern piping systems, flanges play a crucial role in providing secure connections between pipes, valves, pumps, and other equipment. Among the various flange types, the spigot flange is widely used for its versatility, reliability, and efficiency in plastic piping systems. Zhongjia UPVC Spigot Flanges are specifically designed to meet the requirements of industrial, commercial, and municipal piping networks, offering a durable and cost-effective solution for fluid transport.

1. Material Advantages of UPVC
UPVC (Unplasticized Polyvinyl Chloride) is a rigid, high-performance plastic material widely recognized for its excellent mechanical, chemical, and thermal properties. The use of UPVC for spigot flanges offers several advantages:

Superior Chemical Resistance
UPVC resists corrosion from acids, alkalis, salts, and many solvents. This makes it ideal for applications in water treatment, chemical processing, and wastewater management where metal alternatives are prone to corrosion or scaling.

Lightweight Construction
UPVC flanges are much lighter than metal flanges, reducing shipping, handling, and installation costs. Their low weight also facilitates easier maintenance and repair, particularly in large-diameter pipelines.

Durable and Long-Lasting
UPVC is resistant to environmental degradation, including UV exposure, and does not rust or pit over time. This ensures a long service life, even in harsh outdoor or industrial environments.

Environmentally Friendly and Safe
UPVC is recyclable and non-toxic, supporting sustainable infrastructure development. Its non-conductive nature also offers additional safety in installations exposed to electrical equipment or static charges.

2. Product Specifications and Manufacturing Features
Zhongjia UPVC Spigot Flanges are manufactured using injection molding technology, which ensures dimensional consistency, smooth surfaces, and uniform wall thickness. Key specifications and features include:

Connection Type: Socket connection, compatible with UPVC pipes using solvent welding.
Size Range: φ90mm to φ315mm, suitable for medium to large pipeline systems.
Color: Light gray, allowing easy identification and aesthetic consistency in piping layouts.
Standard Compliance: DIN standard, ensuring international compatibility and quality assurance.
Nominal Pressure: PN10, suitable for standard water, wastewater, and chemical transport applications.
The spigot flange design provides a robust interface for mating with corresponding fittings or equipment. Its one-piece construction reduces potential leak paths and simplifies installation.

3. Functional Advantages and Applications
Zhongjia UPVC Spigot Flanges serve multiple functions in pipeline systems:

Secure Pipe Connections
Spigot flanges are designed to connect UPVC pipes to valves, pumps, tanks, and other fittings, ensuring a reliable and tight joint.

Sealing and Leak Prevention
With proper solvent welding and the use of compatible gaskets, spigot flanges provide a leak-proof seal, ensuring operational safety and efficiency.

Maintenance and System Modularity
Flanged connections allow for easy disassembly, maintenance, or replacement of pipeline sections without cutting the pipe. This modularity is particularly beneficial in industrial or municipal projects where downtime must be minimized.

Versatile Applications
Zhongjia UPVC Spigot Flanges are used in various industries, including:

Water supply networks – domestic, commercial, and municipal pipelines.
Wastewater and sewage systems – chemical-resistant properties prevent corrosion and scaling.
Chemical processing plants – handling non-aggressive to moderately aggressive chemical liquids.
Agricultural irrigation systems – suitable for pumps, sprinklers, and reservoirs.
Swimming pools and aquaculture systems – resistant to chlorine and other disinfectants.
4. Installation Advantages
Zhongjia UPVC Spigot Flanges are engineered for ease of installation and operational efficiency:

Socket Connection with Solvent Cement
The socket interface allows for a strong, permanent bond with UPVC pipes using solvent cement, creating a monolithic structure without mechanical fasteners.

Reduced Labor and Installation Time
The lightweight design and one-piece structure simplify installation and reduce labor costs, making it ideal for both small and large-scale projects.

Low Maintenance Requirements
UPVC flanges are resistant to corrosion, scaling, and biofilm formation, minimizing the need for regular maintenance or replacement.

Vibration and Noise Reduction
The inherent elasticity of UPVC absorbs vibrations and dampens noise, offering quieter operation compared to rigid metal flanges in water and chemical systems.

5. Comparison with Other Flange Materials
Flanges are commonly made from metals such as steel, stainless steel, or cast iron, and sometimes glass. Compared to these materials, UPVC spigot flanges offer significant advantages:

Versus Steel or Cast Iron: Lighter, easier to handle, corrosion-resistant, and more cost-effective.
Versus Stainless Steel: Lower cost while maintaining adequate chemical resistance for most standard applications.
Versus Glass: More impact-resistant and easier to install, providing better durability in practical use.
While metals may be required for high-pressure or high-temperature systems, UPVC offers the optimal balance between durability, cost-efficiency, and chemical compatibility for standard water, wastewater, and chemical pipelines.

6. Zhongjia Brand Strength
Zhongjia has established a reputation as a reliable manufacturer of high-quality UPVC piping solutions. The brand emphasizes:

Strict Quality Control: Ensuring dimensional accuracy, pressure compliance, and material consistency.
Comprehensive Product Range: Includes complementary fittings such as tees, elbows, reducers, end caps, and valves for complete system solutions.
International Standard Compliance: DIN certification ensures global compatibility and reliable performance.
Customer-Focused Support: Technical assistance, installation guidance, and post-sales service enhance operational efficiency and satisfaction.
Zhongjia’s dedication to precision manufacturing, quality assurance, and customer support ensures their UPVC spigot flanges are trusted by engineers, contractors, and facility managers worldwide.

Conclusion
The Zhongjia UPVC Spigot Flange is a high-performance piping component designed for reliable connections, secure sealing, and long-term durability. Its lightweight, corrosion-resistant, and cost-effective properties make it suitable for water supply, wastewater management, chemical processing, irrigation, and aquaculture systems.

With a size range of φ90mm to φ315mm, light gray color, DIN standard compliance, and a socket connection for solvent welding, Zhongjia UPVC Spigot Flanges provide a practical, efficient, and dependable solution for modern piping systems.

As the global demand for UPVC piping solutions grows, Zhongjia continues to lead in quality, precision manufacturing, and customer support, ensuring that their spigot flanges remain a trusted choice for safe, durable, and cost-effective pipeline connections.