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  • PVC-U Elbow 22.5° (F/F)
  • PVC-U Elbow 22.5° (F/F)

PVC-U Elbow 22.5° (F/F)

Brand: 
Zhongjia

Material: 
PVC-U

Size: 
φ90mm-φ315mm

Technique: 
Injection moulded

Connection:
Socket

Color: 
Light gray

Standard: 
DIN standard

Nominal Pressure: 
PN10

Origin: 
China

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  • Description

  • Additional info.

  • Size Guide

  • PVC-U faucet 22.5 degree elbow, also called PVC-U faucet bend 22.5 degree, has a rubber ring placed in one or two bell end. PVC-U faucet elbow 22.5 degree allows to join two lengths of uPVC pipe on an angle of 22.5 degree. PVC-U faucet 22.5 degree elbow can be provided in a diameter from 90mm to 315mm, with a normal pressure rating of PN10.


    Product Features and Advantages:
    ● Improved Strength at Rubber Ring Socket.
    ● Absolute Water Seal.
    ● Superior Elasticity and Flexibility.
    ● Quick Installation.
    ● No Ambient Influence.

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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 Elbow 22.5° (F/F) Manufacturers and Custom PVC-U Elbow 22.5° (F/F) 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 Elbow 22.5° (F/F) Industry knowledge

Why Is the PVC-U Elbow 22.5° (F/F) an Ideal Solution for Smooth Directional Flow in Modern Piping Systems?

The PVC-U Elbow 22.5° (F/F) is a precision-engineered pipe fitting designed for systems that require a gentle change in direction without disrupting flow efficiency. Manufactured by Zhongjia, a trusted name in high-quality piping solutions, this fitting combines advanced material science, excellent mechanical strength, and long-lasting durability. Its 22.5-degree bend allows for a smoother transition than sharper elbows, minimizing hydraulic losses and mechanical stress throughout the pipeline system.

Built from PVC-U (Unplasticized Polyvinyl Chloride) and conforming to the DIN standard, this product is widely used across water supply, drainage, irrigation, and industrial piping applications. With its superior resistance to corrosion, lightweight design, and ease of installation, the PVC-U Elbow 22.5° (F/F) has become a preferred choice for engineers and contractors who prioritize performance, reliability, and cost efficiency.

Product Overview and Application Principle

The PVC-U Elbow 22.5° (F/F) is designed to connect two lengths of PVC-U pipe at an angle of 22.5 degrees, enabling smooth directional changes in the layout of a piping network. The “F/F” designation stands for female-to-female connection, indicating that both ends feature socket joints which accommodate the spigot end of the connecting pipes.

This connection method allows for a tight and secure seal, often reinforced by a rubber ring placed in one or both bell ends. The design effectively absorbs vibrations, accommodates slight misalignments, and prevents leakage even under dynamic pressure conditions.

The 22.5° bend offers a gentler flow transition than the more common 45° or 90° elbows. This smaller angle is particularly advantageous in systems where maintaining steady flow velocity and minimizing pressure drop are critical—such as in long water distribution lines, industrial processing systems, and irrigation pipelines.

Material Characteristics: The Strength of PVC-U

PVC-U, or Unplasticized Polyvinyl Chloride, is a high-strength thermoplastic known for its exceptional durability and resistance to chemical attack. Unlike regular PVC that contains plasticizers to improve flexibility, PVC-U retains a rigid and robust structure, which provides significant mechanical stability.

Key Material Benefits Include:

  • Corrosion Resistance: PVC-U is impervious to rust, oxidation, and corrosion from water, acids, and alkalis, making it ideal for environments where metal fittings would degrade quickly.
  • Chemical Stability: It maintains its properties even when exposed to aggressive chemical media, ensuring reliability in industrial fluid systems.
  • Lightweight Construction: PVC-U fittings are much lighter than metal alternatives, simplifying transportation, handling, and installation.
  • Low Friction Surface: The interior wall of PVC-U elbows is exceptionally smooth, reducing frictional losses and preventing scaling or sediment accumulation.
  • Non-Toxic and Safe: Being free from heavy metals and plasticizers, PVC-U is safe for potable water systems and environmentally friendly applications.

These material advantages contribute directly to the longevity and performance of the Zhongjia PVC-U Elbow 22.5° (F/F), ensuring consistent flow quality and low maintenance requirements.

Technical Specifications

  • Brand: Zhongjia
  • Material: PVC-U
  • Size Range: φ90mm – φ315mm
  • Technique: Injection moulded
  • Connection Type: Socket (Female/Female)
  • Color: Light gray
  • Standard: DIN standard
  • Nominal Pressure: PN10
  • Origin: China

Each elbow is injection moulded, ensuring dimensional accuracy, uniform wall thickness, and structural consistency. The PN10 pressure rating signifies that it can safely operate at a nominal working pressure of 10 bar, suitable for medium-pressure applications such as municipal water supply, irrigation, and industrial processes.

Product Features and Advantages

● Improved Strength at Rubber Ring Socket

The Zhongjia PVC-U Elbow 22.5° (F/F) features a reinforced rubber ring socket, which enhances the fitting’s mechanical integrity. This design improvement ensures a strong, leak-proof connection that maintains sealing performance under varying pressure or temperature conditions.

● Absolute Water Seal

With its precision-engineered socket and rubber ring interface, the elbow achieves an absolute watertight seal. This prevents leakage even in underground or high-pressure installations, ensuring that every drop of water is efficiently transported through the system.

● Superior Elasticity and Flexibility

The embedded rubber ring provides the joint with a degree of flexibility, allowing it to absorb thermal expansion, vibrations, or ground movements. This elasticity significantly reduces the risk of cracking or joint failure in long pipeline installations.

● Quick Installation

Unlike metal fittings that require threading or welding, PVC-U elbows use a simple socket joint mechanism, making installation fast, safe, and cost-effective. Workers can easily assemble or replace fittings on-site without the need for heavy machinery or specialized skills.

● No Ambient Influence

PVC-U fittings are unaffected by environmental factors such as humidity, UV exposure, or temperature variation. Their non-corrosive nature ensures they remain reliable in both indoor and outdoor installations, including coastal or chemical-rich environments.

Advantages of the 22.5° Angle Design

The 22.5° bend offers unique hydraulic and mechanical benefits compared to sharper elbows:

  • Reduced Pressure Drop: The smaller angle allows fluids to change direction smoothly, minimizing turbulence and maintaining consistent flow rates.
  • Less Stress on Piping: The gradual directional change places less mechanical stress on connected pipes and joints, extending the lifespan of the entire system.
  • Ideal for Long Runs: In long-distance pipelines or large-diameter systems, the 22.5° elbow ensures energy-efficient operation with minimal pumping losses.
  • Enhanced Flow Stability: The design supports laminar flow characteristics, which are essential for applications involving sensitive or high-purity fluids.

This makes the PVC-U Elbow 22.5° (F/F) particularly useful in water distribution networks, irrigation systems, and complex piping arrangements where smooth directional transitions are required.

Typical Applications

The versatility of Zhongjia’s PVC-U Elbow 22.5° (F/F) makes it suitable for a wide range of fluid transport systems, including:

  • Water Supply Systems: For residential, commercial, or municipal water distribution.
  • Irrigation Systems: Ensures smooth flow direction changes without energy loss.
  • Sewage and Drainage Networks: Resistant to corrosion and scaling in wastewater environments.
  • Industrial Fluid Conveyance: Suitable for transporting chemicals, process water, or cooling liquids.
  • Construction and Infrastructure Projects: Used in underground and aboveground piping systems where durability and tight sealing are required.

Its light gray color also provides a clean, professional appearance, which is suitable for exposed installations in technical or public spaces.

Environmental and Economic Benefits

PVC-U is recognized for its sustainability and cost efficiency. The long service life and minimal maintenance requirements reduce overall system costs. Its lightweight structure lowers transportation and installation expenses, while its recyclability supports environmental responsibility.

Because PVC-U does not corrode or leach harmful substances, it remains one of the most eco-friendly materials for water infrastructure. Its energy-efficient manufacturing process and long operational lifespan make it an ideal choice for sustainable engineering projects.

Conclusion

The Zhongjia PVC-U Elbow 22.5° (F/F) embodies innovation, reliability, and practicality in piping system design. By combining precision moulding, robust material performance, and smart connection design, it provides exceptional durability and watertight reliability under a range of operating conditions.

Its gentle 22.5° angle ensures smooth directional flow, reducing pressure losses and system wear—an advantage that becomes critical in large-scale or high-efficiency systems. Whether used in water supply, irrigation, or industrial applications, the PVC-U Elbow 22.5° (F/F) offers engineers and installers a product that balances strength, flexibility, and environmental responsibility.

In essence, this fitting demonstrates how a small component can make a big difference in achieving long-term efficiency and stability in any fluid transport network.