Company Advantage

Efficient Team

We will build a high-performance team, make future development plans, and give full play to the advantages of the team.

 

Advanced equipment

We have advanced equipment, skilled workers, and exquisite craftsmanship to process products, and have strong production capacity, with an annual output of 50,000 machines.

One stop solution

DSL will create a one-stop solution for a full range of plastic pipe welding equipment. We can also purchase other products you need.

Our service

Provide plastic pipe welding technology, design, training and after-sales service to our customers.

 

 

What is Electrofusion Fittings

 

 

Electrofusion fittings are used in the connection of HDPE pipes and other plastic pipes carrying liquids. Fittings are available in various sizes. Pipes are easily assembled with fittings. The direction of the pipes can be changed or their ends can be closed. It is mounted together with the help of electrofusion welding machine.Today, the most reliable method for joining plastic pipes is electrofusion welding. Among the electrofusion fittings; there are EF 90 ͦ, EF CAP, EF COUPLER HDPE 100+, EF ELBOW 90 ͦ, EF REDUCED TEE 90 ͦ, EF REDUCER, EF SERVICE TE 360 ͦ, EF TAPPING TEE 360 and EF SADDLE HDPE 100+. Thanks to these fittings, gas and water can be transferred safely.

Benefits of Electrofusion Fittings

 

 

Strong Joints
The electrofusion fittings are quality fittings. They feature fusion zones and long penetration depths. Both these make joints strong and more effective. By using these fittings, one can expect durable solutions and robust joints.

 

Cost-effective
The electrofusion fittings will not cost you more. The affordability makes these fittings preferable for many. The economic benefits are the outcome of the innovation and integrated system quality. Also, the computerized smart integration will minimize the risk of human errors. The absence of manual labor will also reduce the end cost.

 

Improved Performance
If you choose reliable electrofusion fittings suppliers, you can get the best quality products. Most of these fittings meet the safety standards and full pressure rating for different applications. For example, if you buy electrofusion fittings for gas, the pipe can ensure the best performance when it comes to gas distribution. The same is about electrofusion fittings for water. The best one can ensure equal water distribution.

 

Non-Toxic
These fittings are non-toxic. As heavy metal additives will not be used, these fittings will not be contaminated by a bacterium or covered with dirt. Also, they are resistant to chemical matters. Apart from that, they are resistant to electron chemical corrosion. Impact and pressure resistance are added advantages.

 

Low Installation Costs
These fittings are easy to install. However, you might need some expertise for the installation. But the installation cost will be less. More importantly, the installation will be less time-consuming.

 

Durable
Electrofusion fittings are known for their durability. They will last for more than four decades without much maintenance demands. Also, they can effortlessly and quickly operate in pipes. Therefore, you can expect a fast result after the installation. These installations are safe and minimize the repair costs.

 

Application of Electrofusion Fittings

Water and sewage industries
In irrigation systems, water and sewage networks, pools and urban water and sewage facilities, electrofusion joints can be used to connect and connect polymer pipes.

 

Oil and gas industry
In the oil and gas industry, electrofusion joints can be used to connect gas and oil pipes. These connections have the ability to withstand pressure and harsh environmental conditions.

Chemical Industry

In the chemical industry, electrofusion fittings may be used in piping systems for conveying chemical products and corrosive materials. These connections can be highly effective due to their high resistance to corrosion and chemicals.

Mining Industry

In mining and mineral extraction, electrofusion fittings are used to connect pipes in irrigation systems, pumping and mining facilities. These connections can be used due to their high resistance to pressure and harsh environmental conditions.

Electrical and electronic industries

In some parts of the electrical and electronic industry, electrofusion joints may also be used to connect and connect cables and pipes.

 

Types of Electrofusion Fittings
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Electrofusion End Cap

Couplers
The most basic electrofusion fitting used to join pipes. Placed between two pipe ends, it ensures that the pipes are tightly connected to each other.

 

Elbows
Used where pipes need to be guided. It is available in different angles such as 90 degrees, 45 degrees and allows the pipes to rotate in the desired direction.

 

Tees (Tees)
Used when it is desired to add a side branch to a main pipeline. Tees provide a three-way junction point to create a side exit from the main line.

 

Reducers
Used when pipes of different diameters need to be joined. Gearboxes allow the flow within the system to be regulated, enabling the transition from a large-diameter pipe to a small-diameter pipe.

 

Flange Adapters (Flange Adapters)
Used to connect piping systems to other installation elements such as valves, pumps, measuring devices. Flange adapters are connected to the pipe by electrofusion and have a flange at the other end.

 

End Caps
Used at the end of the pipeline, it closes the open end of the pipe and ensures that the flow in the system is controlled.

 

Studs (Saddle Type Fittings)
A special fitting used to add a new outlet to an existing pipeline. It is generally preferred in water and gas networks to create a new connection point without damaging the existing line.

 

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5 Features for Electrofusion Fittings

High Tightness: The electrofusion method ensures a leak-free connection between the pipes. This is especially critical for lines carrying water and gas.

Chemical Resistance: Polyethylene material has high resistance to most chemicals. This increases its usability even in the presence of acids, bases and solvents.

Long Life: Electrofusion fittings are resistant to UV rays and environmental conditions, making them ideal for outdoor applications.

Easy Assembly: Electrofusion fittings can be assembled quickly and easily with specialized equipment. This reduces labor costs and enables projects to be completed quickly.

Flexible Application: Available in various sizes, shapes and functions, electrofusion fittings offer flexible solutions for complex pipelines and specialized engineering requirements.

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Working Principle of Electrofusion Fittings

Resistive Wires
Electrofusion fittings are equipped with resistive wires, typically made of copper, embedded in the fitting. These wires act as heating elements during the welding process.

Controlled Heating
When the electrofusion fitting is connected to the welding machine, an electric current is passed through the resistive wires. This current generates heat due to the electrical resistance of the wires.

Melting and Fusion
The generated heat is transferred to the fitting and the pipe, causing them to melt at the contact points. This controlled melting allows the materials to fuse together, creating a strong and secure connection.

Cooling and Solidification
Once the heating cycle is complete, the melted materials cool and solidify, forming a solid, leak-proof connection.

Uniformity and Precision
Electrofusion welding offers a high degree of control and precision, ensuring a consistent and reliable bond between the fitting and the pipe.

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How to Choose Electrofusion Fittings
 
1. Choose the right electrofusion fittings

First, select the appropriate PE electrofusion pipe fittings according to the purpose and environmental conditions of the required piping system. In different fields and in different environments, the uses and environmental conditions of the required pipeline systems are different. Therefore, it is very important to choose appropriate PE electrical pipe fittings. For example, in the fields of urban water supply and drainage, it is necessary to choose PE electrical pipe fittings that can withstand high pressure and impact to ensure the safety and stability of the urban drainage system; in the chemical and pharmaceutical fields, it is necessary to choose corrosion-resistant and high-temperature resistant pipe fittings. PE electrofusion pipe fittings to adapt to the special environments in chemical industry, pharmaceutical and other fields.

2. Pressure Level

Secondly, appropriate PE electrofusion pipe fittings should be selected according to the pipe diameter and pressure level of the required pipeline system. The pipe diameter and pressure level of the pipeline system are one of the important indicators for selecting PE electrofusion pipe fittings. Generally speaking, pipeline systems with larger pipe diameters and higher pressure levels need to choose more pressure-resistant and impact-resistant PE electrofusion pipe fittings to ensure the safety and stability of the pipeline system.

3. Choose a brand with reliable quality

Thirdly, choose a brand of PE electrical pipe fittings with reliable quality and excellent performance. Choosing a brand of PE electrofusion pipe fittings with reliable quality and excellent performance is the key to ensuring the long-term safe operation of the pipeline system. There are currently many brands of PE electrical pipe fittings on the market. Consumers should choose well-known brands when choosing. They can make judgments by checking the manufacturer's qualifications, brand reputation, product certification, etc. to ensure that the selected PE electrofusion pipe fittings are of high quality and performance. Stable and reliable.

4. Choose experienced suppliers

Choose a supplier of PE electrical pipe fittings with rich experience and considerate service. Choosing an experienced and considerate PE electrofusion pipe fittings supplier can provide more professional technical support and service guarantee. Some professional PE electrofusion pipe fittings suppliers have rich industry experience and technical strength, and can provide consumers with technical support and after-sales service to ensure that the PE electrofusion pipe fittings purchased by consumers are of high quality, stable and reliable in performance, and can be used during use. Provide timely and thoughtful technical support and service guarantee, so that consumers can use PE electrical pipe fittings with more confidence and peace of mind.

 

Process Of Electrofusion Fittings
 

Fitting Design
Electrofusion fittings are typically composed of high-density polyethylene (HDPE) material, matching the properties of PE pipes. They feature embedded heating elements and conductive coils strategically positioned within the fitting's structure.

 

Electrofusion Control Unit

A control unit serves as the nerve center of the electrofusion process. It regulates the voltage, current, and duration of electrical pulses delivered to the fitting, ensuring precise fusion parameters.

 

Preparation
Before fusion, the pipe ends and fitting sockets undergo meticulous cleaning and scraping to remove any contaminants and ensure optimal surface condition.

 

Connection
Once prepared, the pipe and fitting are aligned and inserted into the electrofusion machine. The control unit initiates the fusion process by applying electrical current, which heats the heating element and causes the molten material to form a cohesive bond between the pipe and fitting.

 

Cooling and Solidification
After fusion, the joint is allowed to cool and solidify, forming a seamless, leak-proof connection.

 

 
Our Factory

 

DSL Fusion Technology is a China-thailand joint venture company, has been a key player in the field of supplying plastic pipe welding machinery for 8 years. To gain a good reputation, DSL team not only provide good quality machinery, but also provide plastic pipe welding technology, design, training and aftersale service to our clients. In the past 8 years, with our quality products and good service, we now export a Chinese-engineered plastic pipe welding machinery range to 70 countries worldwide.

 

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FAQ
 

Q: What temperature is needed for HDPE electrofusion?

A: The balloon will burst during pressure testing and can be flushed from the system at a downstream outlet. Electrofusion fittings can be installed in ambient temperatures as recommended by the manufacturer. A typical qualified temperature range for installation is 14°F minimum to 113°F maximum.

Q: What are the defects of electrofusion welding?

A: Existing researches reveal that the failure of electrofusion joints is influenced by intrinsic factors such as welding and installation qualities, and external factors such as various load conditions. The combination of these factors would result in different failure modes of electrofusion joints.

Q: How do electrofusion fittings work?

A: Electrofusion welding employs fittings that are placed around the joint to be welded. Metal coils are implanted into the fittings, and electric current is run through the coils to generate heat and melt part of the pipes, forming a joint upon solidification.

Q: What are the benefits of electrofusion fittings?

A: Electrofusion allows safe and reliable joining, thanks to a uniform heat diffusion. Automatic reading of the parameters by the machine reduces the number of operations that the operator has to perform during the installation.

Q: What can cause an electrofusion tee to fail?

A: Improper scraping is one of the most common causes of electrofusion failure. Scraping is primarily to reveal a surface that has not been exposed to UV rays, to allow for proper bonding. If the surface is not scraped, the surface will heat up, but may not bond with the electrofusion fitting.

Q: What type of pipe can be joined using electrofusion?

A: Polyethylene (PE) piping
Electrofusion is widely used in the installation of polyethylene (PE) piping for gas pressure applications. Electrofusion fitting designs vary between manufacturers and historically each manufacturer had developed and qualified its own installation procedure.

Q: What is the principle of electrofusion?

A: The principle of electrofusion welding machine is as follows: the electric welding machine rectifies and filters the alternating current, inverts it, reduces the voltage, and then rectifies it, and finally outputs a low-voltage DC voltage suitable for welding (there were also some welding machines that output .

Q: What is the voltage of electrofusion?

A: The pipes to be joined are cleaned, inserted into the electrofusion fitting (with a temporary clamp if required) and a voltage (typically 40V) is applied for a fixed time depending on the fitting in use.

Q: What is the temperature of electro fusion joint?

A: The application range for Electrofusion is usually -10°C to +45°C. Make sure by checking the installation manual, that installation in the intended temperature range is covered. For deviations or required additional measures, please consult the suppliers of the pipe, fitting, tools and machines.

Q: What is electrofusion used for?

A: Electrofusion fittings are used in the connection of HDPE pipes and other plastic pipes carrying liquids. Fittings are available in various sizes. Pipes are easily assembled with fittings. The direction of the pipes can be changed or their ends can be closed.

Q: At what temperature does Electrofusion Fittings bend?

A: 390°F
To bend weld HDPE, material is heated to 390°F (+/- 50°F). Penetration into the material determines the bend angle (ex. 65% - 75% material penetration = 90° bend). Once the heating element has evenly penetrated to the desired percentage, the material can be bent to desired angle.

Q: What is the maximum working temperature for HDPE?

A: HDPE is used for structural applications as it is almost four times better in tensile strength, and three times better in compressive strength than LDPE. HDPE has a working temperature of 212 degrees F - 220 degrees F under low load conditions and it may be autoclaved at sterilizable temperatures.

Q: What are the benefits of electrofusion fittings?

A: Electrofusion allows safe and reliable joining, thanks to a uniform heat diffusion. Automatic reading of the parameters by the machine reduces the number of operations that the operator has to perform during the installation.Electrofusion is a method of joining MDPE, HDPE and other plastic pipes using special fittings that have built-in electric heating elements which are used to weld the joint together.

Q: How do electrofusion fittings work?

A: Electrofusion welding employs fittings that are placed around the joint to be welded. Metal coils are implanted into the fittings, and electric current is run through the coils to generate heat and melt part of the pipes, forming a joint upon solidification.

Q: What type of pipe can be joined using electrofusion?

A: Polyethylene (PE) piping
Electrofusion is widely used in the installation of polyethylene (PE) piping for gas pressure applications. Electrofusion fitting designs vary between manufacturers and historically each manufacturer had developed and qualified its own installation procedure.

Q: What is the temperature of electro fusion joint?

A: The application range for Electrofusion is usually -10°C to +45°C. Make sure by checking the installation manual, that installation in the intended temperature range is covered. For deviations or required additional measures, please consult the suppliers of the pipe, fitting, tools and machines.

Q: What is electrofusion jointing?

A: Electrofusion Fittings contain electrical filament wires which, when correctly connected to an appropriate power source for the specified period of time, will fuse the coupling onto the pipe.Electrofusion, or EF for short, is a method of joining PE pipe in situations where butt fusion is not practicable, like where valves, elbows and tees need to be added. Specialised electrofusion fittings have electrical heating coils imbedded into them.

Q: What type of plastic are your end caps made from?

A: They come in a range of materials, from soft and flexible vinyls to impact-resistant LDPE. Threaded pipe caps and plugs are normally for heavier duty applications. Nylon end caps are available, but the material's rigidity makes it ideal for threaded fittings that need long lasting or permanent protection.

Q: What temperature is electrofusion welding?

A: Appropriate cooling is of importance to the quality of the weld; joints should be cooled while the pipes are still clamped, free from any loads. ISO 12176-222 specifies allowable ambient temperatures for EF welding from −10°C to +40°C.

Q: What are the minimum requirements for fusion jointing of polyethylene pipe?

A: The final weld beads should be fully rolled over, free from pitting and voids, correctly sized, and free from discolouration. When correctly performed, the minimum long-term strength of the butt fusion joint should be 90% of the strength of the parent PE pipe.

We're well-known as one of the leading electrofusion fittings manufacturers and suppliers in China for our quality products and good service. Please feel free to wholesale electrofusion fittings made in China here from our factory.

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