Product Description



Product Description


Electric CHINAMFG HDPE Fittings is 1 kind of socket CHINAMFG machine. It has different with normal socket fittings. It has brass wire inside the fittings, it need use Electric CHINAMFG machine. Pipe outside dia is equal to fittings inside dia. So pipe can put inside the fittings. That’s the socket fusion. Normal size is OD 20-315mm. More easy operation compare to butt CHINAMFG . as the butt CHINAMFG machine is too heavy to move.
 It is used to connect HDPE pipes. hdpe electrofusion fittings connect by electric CHINAMFG welding machines, its easy operation. electrofusion coupler is used to connect 2 HDPE.


Hot melt pipe fittings,hdpe pipe coupling is produced by HDPE. it easy connect by HDPE socket welding machine easy operation. Socket CHINAMFG fittings size normally from OD20-OD110mm.HDPE pipe elbow, HDPE connect  by socket CHINAMFG machine. For Example ,HDPE pipe dia is OD 25mm, then we use 25mm socket CHINAMFG fittings, use socket CHINAMFG machine,to connect them together. Thread fittings have female and male fittings, Like socket, elbow and tee. Also have socket valves to 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

1. No shrinkage, deformation, porosity and other defects;
2. No overflow burr, and the heating wires are arranged in order;
3. Install the indicator hole cover cap before water cooling;
4. The pointer of PE conversion seal and batch number seal can be rotated;

Company Profile


Our History

ZheJiang KANGYU Pipe Industry Co., Ltd. is a professional manufacturer and supplier of high-quality HDPE pipes, PPR pipes, PVC pipes, and pipe fittings. The company is located near the HangZhou Port, an important transportation hub of China, which facilitates the delivery of products to the market and enables efficient and convenient logistics.

Founded in 2009, KANGYU has a total of 700 employees and 30 production lines. The company has an annual output value of 100 million US dollars and has attained ISO9001 certification and various quality systems certification. KANGYU’s products have been highly recognized by customers both domestically and internationally.

Main Products

HDPE Pipes and Pipe Fittings:
KANGYU provides HDPE pipes for water supply and gas transmission. The pipes have high flexibility, high impact resistance, corrosion resistance, and long service life. The pipe fitting products include butt CHINAMFG fittings, electrofusion fittings, saddle clamps, and mechanical fittings, which are widely applied in municipal engineering, building water supply, gas pipeline, and coal mine drainage systems.

PPR Pipes and Pipe Fittings:
KANGYU offers a full range of PPR pipes for hot and cold water transportation. The pipes have excellent heat resistance, pressure resistance, and chemical resistance, making them suitable for a wide range of applications, such as residential and commercial buildings, hotels, hospitals, and schools. The PPR pipe fittings include socket CHINAMFG fittings, brass fittings, and welding instruments, which ensure a reliable and easy installation process.

PVC Pipes and Pipe Fittings:
KANGYU manufactures PVC pipes for drainage and electric conduits. The PVC pipes have superior corrosion resistance, electrical insulation, and low thermal conductivity. The pipe fittings are made of high-quality PVC materials, which provide excellent chemical resistance, impact resistance, and dimensional stability.

Positive Outlook

ZheJiang KANGYU Pipe Industry Co., Ltd. adheres to the business philosophy of “quality first, customer first” and strives to provide customers with the best products and services. The company has a sound management system, advanced production technology, and a strong R&D team, which ensures the continuous improvement and innovation of product quality and performance.

In the future, ZheJiang KANGYU Pipe Industry Co., Ltd. will continue to focus on the development of high-tech pipe products, actively explore new markets, and cooperate with partners to achieve mutual benefits and CHINAMFG results. We believe that through joint efforts, the company will have a brighter future and create value for both customers and society.

Our factory

    In order to build a modern factory, we invest in a series of professional mechanical equipment. The annual output amounts to 30000 tons, which can fill up 3000 containers.

The excellent machinery and consummate management system can reduce cost, shorten delivery time and ensure the quality of every product.




We have passed CE, SGS, ISO, CNAS, IAF certification and our products compound international standards



packaging & shipping


Q1: May I get 1 sample before placing order?
A: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; For those high value products, you just need to freight and certain product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
A: T/T, L/C or Ali trade insurance. You can choose the 1 which is convenient for you.

Q3: How and when can I get my goods after payment?
A: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) or by air. Usually it will cost 3-5days that you can get the goods after delivery. For large quantity products,shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on where the port is.

Q4: Is there any possible to use my appointed label or package?
A: Yes. If needed, we’d like to use label or package according to your requirement.

Q5: How can you guarantee the goods you offer is qualified?
A: We always believe honesty and responsibility are basis of 1 company, so whatever products we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.

Q6: Is the price on this page correct?
A: The listed price is only for reference, for latest price, pls contact us directly.

Q7: How can I get some samples?
A: We are honored to offer you free samples, just need to pay the freight cost. 

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sleeve coupling

Are there Specialized Sleeve Couplings for High-Speed or Heavy-Duty Applications?

Yes, there are specialized sleeve couplings designed to meet the demands of high-speed or heavy-duty applications. These specialized couplings are engineered with specific features and materials to ensure reliable performance under challenging conditions. Here’s how sleeve couplings cater to high-speed and heavy-duty applications:

  • High-Speed Applications: In high-speed applications, rotational speeds can be significantly higher, which poses challenges related to balance, vibration, and centrifugal forces. Sleeve couplings for high-speed applications are designed with features like high precision machining, dynamic balancing, advanced materials, and effective lubrication.
  • Heavy-Duty Applications: Heavy-duty applications involve transmitting high torque or handling substantial loads. In such cases, sleeve couplings are designed with features like high torque capacity, sturdy construction, enhanced lubrication, and customization options.

It’s important to note that not all sleeve couplings are suitable for high-speed or heavy-duty applications. Engineers and designers must carefully consider the application’s requirements and select a sleeve coupling that matches the desired speed, torque capacity, and load-bearing capabilities.

Specialized sleeve couplings for high-speed and heavy-duty applications are available from reputable coupling manufacturers. These manufacturers often provide detailed technical specifications and application guidelines to assist engineers in choosing the right coupling for their specific needs.

sleeve coupling

Can Sleeve Couplings be Customized or Adapted to Specific Industrial Needs?

Yes, sleeve couplings can be customized or adapted to meet specific industrial needs. Manufacturers often offer a range of customization options to tailor sleeve couplings to the unique requirements of different applications. The ability to customize sleeve couplings makes them versatile and widely used in various industries. Here are some common ways in which sleeve couplings can be customized:

  • Shaft Size: Sleeve couplings can be manufactured to fit specific shaft diameters. This customization ensures a precise fit, minimizing the need for additional modifications during installation.
  • Material Selection: Depending on the application’s environmental conditions and torque requirements, sleeve couplings can be made from different materials, such as steel, stainless steel, aluminum, or even non-metallic materials like composites or plastics.
  • Keyway Options: Some applications may require keyways to provide additional torque transmission and anti-rotation capabilities. Customized sleeve couplings can be manufactured with keyways that match the shaft’s keyway dimensions.
  • Length and Diameter: The coupling length and overall diameter can be adjusted to suit the available space and installation requirements of the specific application.
  • Electrically Insulated: As mentioned earlier, for applications requiring electrical insulation between shafts, manufacturers can produce electrically insulated sleeve couplings using non-conductive materials like ceramic or composite.
  • Special Environmental Coatings: In harsh environments or corrosive conditions, sleeve couplings can be coated with specialized materials to enhance corrosion resistance and extend the coupling’s service life.
  • Anti-Backlash Features: For precision applications, custom sleeve couplings can be designed with anti-backlash features to reduce play and enhance accuracy.
  • High-Temperature Performance: Some applications involve high temperatures. In such cases, manufacturers can use materials that can withstand elevated temperatures without compromising the coupling’s performance.

When considering customization, it’s essential to collaborate closely with coupling manufacturers or engineering experts who have experience in designing and fabricating custom sleeve couplings. They can offer valuable insights and guidance to ensure the coupling meets the specific industrial needs and performs optimally in the intended application.

By offering a wide range of customization options, sleeve couplings can be adapted to various industries, including robotics, automation, machinery, pumps, conveyors, and more.

sleeve coupling

Can you Explain the Working Principle of a Sleeve Coupling and its Advantages in Various Industries?

A sleeve coupling operates on a simple and effective working principle, making it a versatile choice for various industries. The working principle and advantages of a sleeve coupling are as follows:

Working Principle:

A sleeve coupling connects two shafts with their ends aligned. The coupling consists of a hollow cylindrical sleeve that fits over the shaft ends. The inner diameter of the sleeve matches the outer diameter of the shafts, creating a snug fit. The sleeve coupling does not have any mechanical components like teeth, gears, or keys, relying on the friction between the shaft and the sleeve for torque transmission.

When one shaft rotates, it transfers torque to the sleeve coupling. The frictional force between the sleeve and the shaft causes the sleeve to rotate. As a result, the torque is transmitted from one shaft to the other through the sleeve, enabling power transmission between the two shafts. The sleeve coupling’s flexibility allows it to compensate for minor misalignments between the shafts, ensuring smooth torque transmission even when the shafts are not perfectly aligned.

Advantages in Various Industries:

Sleeve couplings offer several advantages that make them suitable for use in various industries:

  • Simple Design and Installation: Sleeve couplings have a straightforward design, making them easy to install and maintain. They do not require complex alignment procedures, which reduces setup time and associated costs in industrial applications.
  • Cost-Effectiveness: Sleeve couplings are economical compared to other types of couplings. Their basic design and materials contribute to their cost-effectiveness, making them an attractive choice for budget-conscious projects.
  • Flexibility and Misalignment Compensation: Sleeve couplings can accommodate slight angular and axial misalignment between the shafts. This flexibility is beneficial in applications where precise shaft alignment is challenging or when machinery experiences minor shifts during operation.
  • Shock Absorption and Vibration Damping: The flexibility of sleeve couplings allows them to dampen vibrations and absorb shocks, preventing them from transferring to connected machinery. This feature enhances the stability and reliability of mechanical systems, especially in applications with varying loads or operating conditions.
  • Wide Range of Applications: Sleeve couplings find applications in various industries, including general machinery, pumps, compressors, conveyors, and power transmission systems. They are well-suited for moderate torque and speed requirements in a diverse range of industrial settings.

While sleeve couplings offer significant advantages, they may not be suitable for applications with severe misalignment, high torque or speed requirements, or those that demand precise shaft alignment. In such cases, other types of couplings with specific features may be more appropriate. Proper selection and sizing of the sleeve coupling based on the application’s requirements ensure efficient and reliable power transmission, contributing to enhanced productivity and reduced downtime in various industries.

China best HDPE 90 Degree Elbow Pipe Electrofusion Sleeve Coupling/HDPE Coupler  China best HDPE 90 Degree Elbow Pipe Electrofusion Sleeve Coupling/HDPE Coupler
editor by CX 2024-05-08