China factory PPR Fittings PPR Coupling 20 – 160mm types of coupling

Product Description

Product Description

PPR fittings coupling fittings for Hot and Cold Water System

1. Non toxic and hygienic. PP-R has only carbon and hydrogen elements as raw materials, and there are no harmful and toxic elements. It is sanitary and reliable. It can be used not only in hot and cold water pipes, but also in pure drinking water system.

2. Heat preservation and energy saving. The thermal conductivity of PP-R pipe is 0.21w/mk, only 1 / 200 of that of steel pipe.

3. Good heat resistance. Vicat softening point of PP-R tube is 131.5. The maximum working temperature can reach 95, which can meet the use requirements of hot water system in the building water supply and drainage code.

4. Long service life. The service life of PP-R pipe can be more than 50 years under the condition of working temperature 70 and working pressure (P.N) 1.ompa, and more than 100 years under the condition of normal temperature (20).

5. Convenient installation and reliable connection. PP-R has good welding performance. Pipes and pipe fittings can be connected by hot melting and electric melting. It is easy to install and reliable to connect. The strength of the connection part is greater than that of the pipe itself.
How to connect

Advantages of PPR Plumbing System

1.PPR pipe have a long life time over 50 years even in the cold and high temperature and stress pressure sitiation.
 2.PPR pipe provides easy installation as compared to all other piping systems.
 3.PPR pipe is non-corrosive, non-calcifiable and has non-contracting diameter relative to the conventional systems.
4. PPR Plumbing System has same joints.
 5.Low thermal conductivity of Vectus Systems offers energy efficiency.
 6.PPR Pipe are Flexible & tough for use in high seismic zones

Packing & Shipping

Company Profile



Q1. What material of pipe are you specialized in?

A: We manufacture PE-Xa,  PPR,  PE-RT, PEX Aluminum composite pipes and fittings.

Q2. Do you produce PVC pipes and fittings?

A:Sorry, dear friend. We are more professional PE and PPR pipe and fittings, which are more suitable for drinking water as they are more hygienic than PVC material. 

Q3. Please tell me your largest outer diameter for pipes.

A: We can produce 8mm– 110mm diameter (PE pipe).

Q4. The price of your products is higher than others.

A: We can’t promise you the best price, but we can promise you the best quality. We import raw material from famous companies such as Borstar, LG Chemical, Chervrom, Hyosung, Lydellbasell, Sinopec.

Q5. For pipe fittings, what do you do mainly?

A: For fittings, coupling (socket), elbows, tee, reducer, union, valve, cap and copper insert fittings are our main products.

Q6: Can you provide us some samples for testing?

A: Of course, my friend. For small amount of samples, we can provide you for free.

Q7: How is our customer service?

A: all our sales representatives can speak fluent English. They will answer all of your questions in 24 hours.

After-sales Service: 1 Year
Warranty: 1 Year
Connection: Hot Melting
Shape: Equal
Head Code: Round
Angle: 90 Degree
US$ 6/Piece
1 Piece(Min.Order)

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What Is a Coupling?

A coupling is a mechanical device that links two shafts together and transmits power. Its purpose is to join rotating equipment while permitting a small amount of misalignment or end movement. Couplings come in a variety of different types and are used in a variety of applications. They can be used in hydraulics, pneumatics, and many other industries.


Coupling is a term used to describe a relationship between different modules. When a module depends on another, it can have different types of coupling. Common coupling occurs when modules share certain overall constraints. When this type of coupling occurs, any changes to the common constraint will also affect the other modules. Common coupling has its advantages and disadvantages. It is difficult to maintain and provides less control over the modules than other types of coupling.
There are many types of coupling, including meshing tooth couplings, pin and bush couplings, and spline couplings. It is important to choose the right coupling type for your specific application to get maximum uptime and long-term reliability. Listed below are the differences between these coupling types.
Rigid couplings have no flexibility, and require good alignment of the shafts and support bearings. They are often used in applications where high torque is required, such as in push-pull machines. These couplings are also useful in applications where the shafts are firmly attached to one another.
Another type of coupling is the split muff coupling. This type is made of cast iron and has two threaded holes. The coupling halves are attached with bolts or studs.


The coupling function is an incredibly versatile mathematical tool that can be used in many different scientific domains. These applications range from physics and mathematics to biology, chemistry, cardio-respiratory physiology, climate science, and electrical engineering. The coupling function can also help to predict the transition from one state to another, as well as describing the functional contributions of subsystems in the system. In some cases, it can even be used to reveal the mechanisms that underlie the functionality of interactions.
The coupling selection process begins with considering the intended use of the coupling. The application parameters must be determined, as well as the operating conditions. For example, if the coupling is required to be used for power transmission, the design engineer should consider how easily the coupling can be installed and serviced. This step is vital because improper installation can result in a more severe misalignment than is specified. Additionally, the coupling must be inspected regularly to ensure that the design parameters remain consistent and that no detrimental factors develop.
Choosing the right coupling for your application is an important process, but it need not be difficult. To find the right coupling, you must consider the type of machine and environment, as well as the torque, rpm, and inertia of the system. By answering these questions, you will be able to select the best coupling for your specific application.


A coupling is a device that connects two rotating shafts to transfer torque and rotary motion. To achieve optimal performance, a coupling must be designed for the application requirements it serves. These requirements include service, environmental, and use parameters. Otherwise, it can prematurely fail, causing inconvenience and financial loss.
In order to prevent premature failure, couplings should be properly installed and maintained. A good practice is to refer to the specifications provided by the manufacturer. Moreover, it is important to perform periodic tests to evaluate the effectiveness of the coupling. The testing of couplings should be performed by qualified personnel.
China factory PPR Fittings PPR Coupling 20 - 160mm   types of couplingChina factory PPR Fittings PPR Coupling 20 - 160mm   types of coupling
editor by CX 2023-07-12