China supplier Top Quality HDPE Pipe Electro CHINAMFG Fittings Catalog Reducer/Stub Flange/Tee/Elbow/Coupling/End Cap

Product Description



Product Description

Electric CHINAMFG HDPE Fittings by ZheJiang Kangyu Pipe Industry Co., Ltd. are a unique type of socket CHINAMFG machine designed for connecting HDPE pipes. These fittings contain brass wire inside, requiring the use of an Electric CHINAMFG machine for installation. With a pipe outside diameter equal to the fittings’ inside diameter, the pipe can easily fit inside the fittings, enabling a seamless socket CHINAMFG process. Available in sizes ranging from OD 20-315mm, these fittings offer a more straightforward operation compared to traditional butt CHINAMFG methods, which can be cumbersome due to heavy machinery. The HDPE electrofusion fittings are connected using electric CHINAMFG welding machines, ensuring a secure and efficient connection. The electrofusion coupler is specifically designed to connect 2 HDPE pipes effortlessly.


Hot Melt Pipe Fittings by ZheJiang Kangyu Pipe Industry Co., Ltd.

Our HDPE pipe coupling is designed for easy connection using a socket welding machine, ensuring simple operation. The socket CHINAMFG fittings are available in sizes ranging from OD20 to OD110mm. For instance, if you have an HDPE pipe with a diameter of OD 25mm, you can use 25mm socket CHINAMFG fittings along with a socket CHINAMFG machine for seamless connection. Additionally, our thread fittings come in female and male variations, including sockets, elbows, and tees. We also offer socket valves for convenient control.

Fusion machine





Characters of pipe



Unique Design:
Choose the maximum high pressure design, guarantee system security.
Accurate marking line of insertion depth and angle, saving time and construction cost.


Superior Materials:
We choose imported specialized resin suitable for pipe to produce PE fittings.


Lean Production:
With sophisticated injection mold, automatic production, the dimension of pipe fitting is precise.


Guarantee the stability of product size.


Long Life:
More than 50 years under normal conditions.

Our Advantages

Product Description

ZheJiang Kangyu Pipe Industry Co., Ltd. presents a high-quality product with the following features:

  • No shrinkage, deformation, porosity, or other defects
  • No overflow burr, with heating wires arranged in order
  • Indicator hole cover cap installed before water cooling
  • PE conversion seal and batch number seal pointers can be rotated

Experience superior quality and precision with our product, ensuring optimal performance and durability.

Company Profile

Our History

ZheJiang Kangyu Pipe Industry Co., Ltd. is a leading manufacturer and supplier of high-quality HDPE pipes, PPR pipes, PVC pipes, and pipe fittings. Established in 2009, our company has a strong presence near the HangZhou Port, a key transportation hub in China, ensuring efficient product delivery.

Main Products

HDPE Pipes and Pipe Fittings:

Our HDPE pipes offer high flexibility, impact resistance, and corrosion resistance, ideal for water supply and gas transmission. Our range of pipe fittings includes butt CHINAMFG fittings, electrofusion fittings, saddle clamps, and mechanical fittings for various applications.

PPR Pipes and Pipe Fittings:

Our PPR pipes are designed for hot and cold water transportation, featuring excellent heat resistance and pressure resistance. The socket CHINAMFG fittings, brass fittings, and welding instruments ensure easy installation in residential, commercial, and institutional settings.

PVC Pipes and Pipe Fittings:

We manufacture PVC pipes for drainage and electric conduits, known for superior corrosion resistance and electrical insulation. Our PVC pipe fittings offer excellent chemical resistance and impact resistance for reliable performance.

Positive Outlook

ZheJiang Kangyu Pipe Industry Co., Ltd. prioritizes quality and customer satisfaction. With a robust management system, advanced technology, and a dedicated R&D team, we continuously enhance product quality and innovation. We are committed to developing high-tech pipe products, exploring new markets, and fostering partnerships for mutual success.

Our factory

ZheJiang Kangyu Pipe Industry Co., Ltd.

Experience the epitome of modern factory production with our state-of-the-art mechanical equipment. Our annual output of 30,000 tons, equivalent to 3,000 containers, guarantees efficiency and reliability.

Our top-notch machinery and streamlined management system not only reduce costs but also ensure prompt delivery and impeccable product quality.




ZheJiang Kangyu Pipe Industry Co., Ltd. offers CE, SGS, ISO, CNAS, IAF-certified HDPE/PE Socket Electrofusion Couplers. Compliant with international standards for water supply systems.



packaging & shipping



Welcome to ZheJiang Kangyu Pipe Industry Co., Ltd.


Q1: Can I request a sample before placing an order?

A: Yes, samples are available. For normal products, samples are free, and you only need to cover the freight. For high-value products, you may need to cover the freight and a certain product cost. As we build a long-term relationship or you become a VIP customer, free samples will be provided when needed.

Q2: What payment options are available?

A: We accept T/T, L/C, or Ali trade insurance. Choose the most convenient option for you.

Q3: How and when will I receive my goods after payment?

A: For small quantity products, they will be delivered by international courier (DHL, FedEx, ***, etc.) or by air, usually within 3-5 days. For large quantity products, shipping by sea is recommended, taking days to weeks depending on the destination port.

Q4: Can I use my own label or package?

A: Yes, we can use your appointed label or package as needed.

Q5: How do you ensure the quality of the goods?

A: We believe in honesty and responsibility as the foundation of our company. All products provided are qualified, and we conduct testing and provide a Certificate of Analysis (COA) before delivery.

Q6: Is the price listed correct?

A: The listed price is for reference only. For the latest price, please contact us directly.

Q7: How can I get samples?

A: We are pleased to offer free samples; you only need to pay the freight cost.

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reducer coupling

Can a Reducer Coupling Accommodate Misalignment Between Connected Pipes?

Reducer couplings are designed to accommodate a certain degree of misalignment between connected pipes. They offer flexibility that allows for slight angular and axial misalignments, making them suitable for various plumbing and piping applications.

The flexibility of reducer couplings is particularly beneficial when connecting pipes with different diameters, as they help bridge the gap between two pipes of varying sizes. This ability to transition between different pipe sizes while accommodating some misalignment can simplify the installation process and reduce the need for precise alignment during assembly.

However, it is important to note that the amount of misalignment that a reducer coupling can tolerate is limited. Excessive misalignment can lead to stress concentration and increased wear on the coupling and adjoining pipes. In situations where significant misalignment is expected, it is advisable to use other types of flexible couplings, such as expansion joints or flexible rubber couplings, that can handle larger degrees of misalignment.

Proper installation and alignment are still crucial to ensure the reducer coupling’s performance and prevent premature wear or failure. Following the manufacturer’s guidelines for installation and alignment will help optimize the coupling’s functionality and ensure a reliable connection between the pipes.

In summary, while reducer couplings can accommodate some degree of misalignment between connected pipes, it is essential to stay within the specified limits and consider using alternative couplings for applications with significant misalignment requirements.

reducer coupling

What Are the Differences Between Reducer Couplings and Other Types of Pipe Fittings?

Reducer couplings are a specific type of pipe fitting used to transition between pipes of different diameters. Here are some key differences between reducer couplings and other types of pipe fittings:

1. Function: Reducer couplings are primarily used to join two pipes with different diameters, allowing for a smooth flow transition between them. They ensure a leak-proof connection and maintain the flow capacity of the larger pipe while accommodating the smaller one. On the other hand, other types of pipe fittings, such as elbows, tees, and crosses, are used to change the direction of flow, split the flow into multiple directions, or combine multiple pipes into one.

2. Diameter Transition: The main distinguishing feature of reducer couplings is their ability to connect pipes with different diameters. Elbows, tees, and crosses do not serve this purpose and are not designed to transition between different pipe sizes.

3. Shape and Design: Reducer couplings are usually short in length and have a cylindrical shape. They may have different ends to accommodate the different pipe sizes, such as a bell and spigot or a male and female end. In contrast, elbows have a curved design to change the direction of flow, and tees have a T-shaped configuration to split the flow.

4. Usage: Reducer couplings are commonly used in applications where the pipe size needs to be reduced to match the flow requirements or to fit into a specific space. They are widely used in plumbing, HVAC systems, and various industrial processes. Elbows, tees, and crosses, on the other hand, are used to create complex piping systems and direct flow in specific directions.

5. Installation: Installing a reducer coupling involves a straightforward process of fitting the two pipes into each end of the coupling and securing them with appropriate fasteners or welding, depending on the coupling type. Elbows, tees, and crosses may require more planning and adjustment to achieve the desired flow direction and connection.

6. Versatility: Reducer couplings are versatile in that they can be used to connect pipes of different materials and can be found in various materials such as PVC, stainless steel, and brass. Elbows, tees, and crosses are also available in different materials, but their primary purpose is not to transition between different pipe sizes.

In conclusion, reducer couplings are specifically designed for joining pipes of different diameters, providing a smooth and efficient flow transition. While other pipe fittings like elbows, tees, and crosses serve different functions in directing flow or combining multiple pipes, they do not offer the same capability to connect pipes of varying sizes.

reducer coupling

What are the Materials Commonly Used for Manufacturing Reducer Couplings?

Reducer couplings are manufactured using a variety of materials, each chosen based on its specific properties and suitability for different applications. The most commonly used materials for manufacturing reducer couplings include:

  • PVC (Polyvinyl Chloride): PVC is a widely used material for manufacturing reducer couplings in plumbing systems. It is lightweight, durable, and resistant to corrosion, making it suitable for both indoor and outdoor applications. PVC couplings are commonly used in residential and commercial plumbing installations.
  • CPVC (Chlorinated Polyvinyl Chloride): CPVC shares similar properties with PVC but has enhanced temperature and pressure resistance. This makes CPVC reducer couplings suitable for hot water and higher-pressure applications.
  • ABS (Acrylonitrile Butadiene Styrene): ABS is known for its high impact resistance and durability. ABS reducer couplings are commonly used in drain and waste systems, vent lines, and other low-pressure applications.
  • Brass: Brass reducer couplings are valued for their excellent corrosion resistance and strength. They are often used in plumbing systems where there is a need for a more robust and reliable connection.
  • Copper: Copper is known for its superior conductivity, making it suitable for applications that require electrical grounding. Copper reducer couplings are commonly used in water supply lines and heating systems.
  • Stainless Steel: Stainless steel reducer couplings offer excellent corrosion resistance and are ideal for applications that involve aggressive or harsh environments, such as chemical processing or marine applications.
  • Ductile Iron: Ductile iron is used for manufacturing heavy-duty reducer couplings designed for industrial and large-scale applications. It provides high strength and durability.

When selecting a reducer coupling material, factors such as the fluid or gas being conveyed, temperature and pressure requirements, environmental conditions, and the overall application must be taken into consideration. Additionally, compliance with industry standards and regulations is essential to ensure the reducer coupling’s reliability and safety.

China supplier Top Quality HDPE Pipe Electro CHINAMFG Fittings Catalog Reducer/Stub Flange/Tee/Elbow/Coupling/End Cap  China supplier Top Quality HDPE Pipe Electro CHINAMFG Fittings Catalog Reducer/Stub Flange/Tee/Elbow/Coupling/End Cap
editor by CX 2024-05-16






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