China Good quality 50mm PVC Drainage Pipe Coupling energy coupling

Product Description

50MM PVC drainage pipe Coupling 



1. Environmental Protection Formula
PVC resin itself is non-toxic, adding toxic stabilizers or plasticizers will produce hidden dangers. We use environmental protection and lead-free formula, which will not pollute the water quality and affect the health.

2.Corrosion Resistance
It is not affected by residual chlorine in water (chlorinated disinfection residue), while many polyolefin materials (such as PE, PPR) are vulnerable to residual chlorine damage, resulting in reduced life.

3.Aging resistance
Material chemical stability is high, material test and engineering examples prove that the actual service life of UPVC is more than 50 years.

4. Low Cost
The price of raw materials is relatively low, the engineering cost is lower than other products, the weight is about 1 / 6 of galvanized steel pipe, the loading and unloading is convenient, and the transportation cost is low.

5. Impedance bacteria
It has biological impedance and is not easy to breed bacteria. The growth rate of bacteria in its pipes is far lower than that of PE, PPR and other plastic pipes.

6. Smooth pipe wall, not easy to scale
The surface roughness coefficient is only 0.009, which can reduce scale and fouling plug, reduce fluid resistance, and effectively reduce energy consumption cost in long-term use.

7. Low Thermal Conductivity
The conduction heat coefficient is 1 / 300 of that of galvanized steel pipe, which can save energy, reduce heat preservation cost and reduce condensation trouble.

8. Easy and fast installation
It only needs special glue or special rubber ring to connect, and it does not need to be electrified and melted or connected with wire thread instead.






Size 50MM, 75MM, 110MM,160MM,200MM
Material UPVC
Standard GB/T2836.1-2006, CB/T 5836.2-2006
Color White, Grey, Orange 


Building water supply system, municipal water supply system , agricultural irrigation and sprinkler system, pool water circulation system , shaft sinking engineering, golf course engineering, air conditioning cooling water and circulating water system.


Company Info



Q: What is your MOQ?
A: As customer’s request.

Q: Why choose us?
A: We are leading professional manufacturer of HDPE/PVC/PPR pipes&fittings, we offer one stop pipeline system with competitive price.

Q: How to buy the product?
A: You can contact our sales manager by Email, Wechat, Phone number or Whatsapp, and send us the BOQ list, we will contact you immediately. The more specific product information you provide, the faster and easier you can get a quote.

Q: Can I make my own design and logo on the product?
A: Yes, we do OEM. Welcome partners from globally, we can produce your product in China.

Q: Do you have customized pipe and fittings?
A: We can make any plastic pipes and fittings according to customers drawings.


Shipping Cost:

Estimated freight per unit.

To be negotiated
Material: PVC
Hardness: Hard Tube
Type: Thermosetting Plastic Pipe
US$ 0/Piece
1 Piece(Min.Order)


Order Sample



Customized Request


Functions and Modifications of Couplings

A coupling is a mechanical device that connects two shafts and transmits power. Its main purpose is to join two rotating pieces of equipment together, and it can also be used to allow some end movement or misalignment. There are many different types of couplings, each serving a specific purpose.


Functions of coupling are useful tools to study the dynamical interaction of systems. These functions have a wide range of applications, ranging from electrochemical processes to climate processes. The research being conducted on these functions is highly interdisciplinary, and experts from different fields are contributing to this issue. As such, this issue will be of interest to scientists and engineers in many fields, including electrical engineering, physics, and mathematics.
To ensure the proper coupling of data, coupling software must perform many essential functions. These include time interpolation and timing, and data exchange between the appropriate nodes. It should also guarantee that the time step of each model is divisible by the data exchange interval. This will ensure that the data exchange occurs at the proper times.
In addition to transferring power, couplings are also used in machinery. In general, couplings are used to join two rotating pieces. However, they can also have other functions, including compensating for misalignment, dampening axial motion, and absorbing shock. These functions determine the coupling type required.
The coupling strength can also be varied. For example, the strength of the coupling can change from negative to positive. This can affect the mode splitting width. Additionally, coupling strength is affected by fabrication imperfections. The strength of coupling can be controlled with laser non-thermal oxidation and water micro-infiltration, but these methods have limitations and are not reversible. Thus, the precise control of coupling strength remains a major challenge.


Couplings transmit power from a driver to the driven piece of equipment. The driver can be an electric motor, steam turbine, gearbox, fan, or pump. A coupling is often the weak link in a pump assembly, but replacing it is less expensive than replacing a sheared shaft.
Coupling functions have wide applications, including biomedical and electrical engineering. In this book, we review some of the most important developments and applications of coupling functions in these fields. We also discuss the future of the field and the implications of these discoveries. This is a comprehensive review of recent advances in coupling functions, and will help guide future research.
Adaptable couplings are another type of coupling. They are made up of a male and female spline in a polymeric material. They can be mounted using traditional keys, keyways, or taper bushings. For applications that require reversal, however, keyless couplings are preferable. Consider your process speed, maximum load capacity, and torque when choosing an adaptable coupling.
Coupling reactions are also used to make pharmaceutical products. These chemical reactions usually involve the joining of two chemical species. In most cases, a metal catalyst is used. The Ullmann reaction, for instance, is an important example of a hetero-coupling reaction. This reaction involves an organic halide with an organometallic compound. The result is a compound with the general formula R-M-R. Another important coupling reaction involves the Suzuki coupling, which unites two chemical species.
In engineering, couplings are mechanical devices that connect two shafts. Couplings are important because they enable the power to be transmitted from one end to the other without allowing a shaft to separate during operation. They also reduce maintenance time. Proper selection, installation, and maintenance, will reduce the amount of time needed to repair a coupling.


Maintenance of couplings is an important part of the lifecycle of your equipment. It’s important to ensure proper alignment and lubrication to keep them running smoothly. Inspecting your equipment for signs of wear can help you identify problems before they cause downtime. For instance, improper alignment can lead to uneven wear of the coupling’s hubs and grids. It can also cause the coupling to bind when you rotate the shaft manually. Proper maintenance will extend the life of your coupling.
Couplings should be inspected frequently and thoroughly. Inspections should go beyond alignment checks to identify problems and recommend appropriate repairs or replacements. Proper lubrication is important to protect the coupling from damage and can be easily identified using thermography or vibration analysis. In addition to lubrication, a coupling that lacks lubrication may require gaskets or sealing rings.
Proper maintenance of couplings will extend the life of the coupling by minimizing the likelihood of breakdowns. Proper maintenance will help you save money and time on repairs. A well-maintained coupling can be a valuable asset for your equipment and can increase productivity. By following the recommendations provided by your manufacturer, you can make sure your equipment is operating at peak performance.
Proper alignment and maintenance are critical for flexible couplings. Proper coupling alignment will maximize the life of your equipment. If you have a poorly aligned coupling, it may cause other components to fail. In some cases, this could result in costly downtime and increased costs for the company.
Proper maintenance of couplings should be done regularly to minimize costs and prevent downtime. Performing periodic inspections and lubrication will help you keep your equipment in top working order. In addition to the alignment and lubrication, you should also inspect the inside components for wear and alignment issues. If your coupling’s lubrication is not sufficient, it may lead to hardening and cracking. In addition, it’s possible to develop leaks that could cause damage.


The aim of this paper is to investigate the effects of coupling modifications. It shows that such modifications can adversely affect the performance of the coupling mechanism. Moreover, the modifications can be predicted using chemical physics methods. The results presented here are not exhaustive and further research is needed to understand the effects of such coupling modifications.
The modifications to coupling involve nonlinear structural modifications. Four examples of such modifications are presented. Each is illustrated with example applications. Then, the results are verified through experimental and simulated case studies. The proposed methods are applicable to large and complex structures. They are applicable to a variety of engineering systems, including nonlinear systems.
China Good quality 50mm PVC Drainage Pipe Coupling   energy couplingChina Good quality 50mm PVC Drainage Pipe Coupling   energy coupling
editor by CX 2023-04-20