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

How do Sleeve Couplings Compare to Other Coupling Types, such as Flexible or Rigid Couplings?

Sleeve couplings, flexible couplings, and rigid couplings are three common types of couplings used in mechanical power transmission. Each type has its unique characteristics and applications. Here’s a comparison of sleeve couplings with flexible and rigid couplings:

  • Sleeve Couplings: Sleeve couplings are simple and cost-effective couplings that join two shafts end-to-end. They provide some flexibility to accommodate slight shaft misalignments and are suitable for low to moderate torque applications. They are easy to install and do not require extensive maintenance. However, they have limited misalignment compensation and cannot handle significant shaft offsets.
  • Flexible Couplings: Flexible couplings are designed to handle greater misalignments compared to sleeve couplings. They can accommodate angular, parallel, and axial misalignments, providing higher flexibility. Flexible couplings dampen vibrations and reduce shock transmission, contributing to smoother operation. They are available in various designs such as elastomeric, beam, and disc couplings, each offering specific benefits. Flexible couplings are ideal for applications where misalignments, vibrations, or shock loads are significant.
  • Rigid Couplings: Rigid couplings are designed to connect shafts in a straight and rigid manner, without any flexibility. They provide accurate shaft alignment, making them suitable for precision applications. Rigid couplings are robust and transmit torque with high efficiency. However, they cannot accommodate misalignments and are susceptible to vibrations and shocks. Rigid couplings are commonly used in applications where precise shaft alignment is critical.

Choosing the appropriate coupling type depends on the specific requirements of the application:

  • Alignment Requirements: If the application demands accurate shaft alignment and no misalignment compensation is needed, rigid couplings are suitable. For moderate misalignments, sleeve couplings may be sufficient, while flexible couplings are preferred for significant misalignments.
  • Vibration and Shock Damping: If vibration and shock absorption are essential, flexible couplings are preferred due to their ability to dampen vibrations. Sleeve couplings have limited vibration damping capabilities, while rigid couplings do not dampen vibrations.
  • Torque and Load: For low to moderate torque and loads, sleeve couplings are cost-effective choices. For higher torque applications with misalignment compensation, flexible couplings are preferred. Rigid couplings are suitable for high torque and precise alignment applications.

In summary, sleeve couplings provide a basic connection between shafts with limited misalignment compensation. Flexible couplings offer higher misalignment accommodation and vibration damping, making them versatile for various applications. Rigid couplings excel in precise shaft alignment requirements but lack flexibility and shock absorption.

sleeve coupling

How do you Select the Appropriate Sleeve Coupling for Specific Shaft Connections?

Choosing the right sleeve coupling for specific shaft connections involves considering several critical factors to ensure optimal performance and reliability. Here’s a step-by-step guide to help you select the appropriate sleeve coupling:

  1. Shaft Diameter and Size:

    Start by determining the diameters and sizes of the shafts that need to be connected. Measure the outer diameter of each shaft accurately, as this will determine the inner diameter of the sleeve coupling required.

  2. Shaft Misalignment:

    Assess the level of misalignment between the shafts. If there is minimal misalignment, a standard sleeve coupling may be sufficient. For applications with angular misalignment, consider using a spacer sleeve coupling or a flanged sleeve coupling with improved alignment capabilities.

  3. Torque Requirements:

    Determine the amount of torque that the coupling needs to transmit between the shafts. Ensure that the selected sleeve coupling can handle the torque requirements without exceeding its rated limits.

  4. Operating Speed:

    Consider the speed at which the connected machinery operates. For high-speed applications, flanged sleeve couplings with enhanced radial stiffness are preferable to minimize vibration and ensure smooth operation.

  5. Environmental Conditions:

    Evaluate the operating environment to identify potential challenges such as temperature extremes, exposure to chemicals, or the presence of dust or debris. Choose a sleeve coupling material that can withstand the specific environmental conditions and resist corrosion or wear.

  6. Installation Space and Accessibility:

    Assess the installation space and accessibility around the shafts. If the installation space is limited or the shafts cannot be easily disconnected, consider using split sleeve couplings for easier maintenance and installation.

  7. Cost and Budget:

    Take into account the budget and cost constraints for your project. While standard sleeve couplings are generally the most cost-effective option, investing in a higher-quality coupling may be beneficial for critical applications with specific requirements.

By carefully evaluating these factors, you can determine the appropriate sleeve coupling type and size that matches your specific shaft connections. It is crucial to consult with coupling manufacturers or suppliers to get expert advice and ensure that the selected coupling meets the performance requirements of your application. Proper coupling selection will lead to efficient power transmission, reduced maintenance, and prolonged equipment lifespan in your mechanical system.

China high quality HDPE 90 Degree Elbow Pipe Electrofusion Sleeve Coupling/HDPE Coupler  China high quality HDPE 90 Degree Elbow Pipe Electrofusion Sleeve Coupling/HDPE Coupler
editor by CX 2024-05-13