Tag Archives: fittings reducer

China wholesaler HDPE Hot Melt Pipe Fittings DN125*90mm Buttfusion Reducer Coupling a coupling reaction

Product Description

Material: PE100,                                   
Characters of pipe:

1, Light weight, long service life
The weight of HDPE pipe is 1 eighth that of steel pipe, while its service life is 8-10 times more than steel pipe.

2, Good anti-corrosion, good wear-resistance, anti-aging.
HDPE pipe has great corrosion resistance. It has good impact and pressure resistance performance, so it is widely used in piping project under different conditions.

3, High-toughness
It is not easy to break when suffer with the impact of the internal and external force, and it can be bent under water,and excellent anti-wave.
The concave-convex is within 30°of area, can be connected directly on land.

4, Low noise in media transportation.
Smooth surface, low resistance of fluids, low noise.

5, Easy installation
They are convenient to install and need no anti-corrosion treatment or welding work, which can reduce installation difficulty and save lots of working expenses under complex or special environment.

1. Dredging Industry: Floating dredge pipe for river channel/sea shore/lake/pond, sand sunction/slurry dredge, 
2. To transport na tural gas & coal gas,
3. Food & chemical industry,
4. To transport ore & mud,
5. To replace cement pipe, cast iron pipe & steel pipe,
6. Landscaping pipeline,
7. City and town water supply







1.  Q: Are you a manufacturer?
   A: Yes. we are manufacture and trading of HDPE & PPR firefighting pipe,pluming pipe and fittings.
2. Q: What is the shipping port?
    A: ZheJiang or HangZhou port.
3. Q: Can I get free samples?
    A: We can offer you free sample, but we don’t bear courier fee.
4. Q: What is the delivery time?
    A: It depends on the product quantity. If the stock is enough, products will be sent out as soon as possible. We usually have stocks.
5.  Q: Can I order in small quantity first?
     A: Yes, trial order is welcome.
6. Q:Do you manufacture OEM products?
    A: Yes, we can maufacture OEM products. Please contact salesman to discuss product details and other issues.


Shipping Cost:

Estimated freight per unit.

To be negotiated
Warranty: 1 Year
Material: PE100
Pressure: SDR11
US$ 0.99/Piece
1 Piece(Min.Order)


Order Sample



Customized Request


What Is a Coupling?

A coupling is a device that connects two shafts together. It transmits power from one to the other and is used to join rotating equipment. It can also allow for some degree of misalignment and end movement. It is used in mechanical engineering and manufacturing. To learn more about couplings, read this article.
Mechanical connection between two objectsThe present invention relates to a method and assembly for forming a mechanical connection between two objects. The methods of this invention are suitable for connecting both solid and hollow objects. For example, the method can be used to make mechanical connections between two cylinders. This method is particularly useful for connecting two cylinders that are positioned near each other.

Absorbs vibration

A coupling insert is a part of a vehicle’s drivetrain that absorbs vibrations. These inserts are designed to prevent couplings from moving out of phase. However, the coupling inserts themselves can wear out and need to be replaced. Universal joints are an alternative if the coupling is out of phase by more than one degree. In addition, internal bearings in the coupling need to be lubricated and replaced when they begin to show signs of wear.
Another embodiment of the invention includes a flexible coupling 25 that includes rearwardly-extending lugs that extend toward the coupling member 23. These lugs interdigitate with corresponding lugs on the coupling member 23. They are spaced circumferentially. A first elastic member 28 is interposed between lugs 26 and 27, and is adapted to yield in a counterclockwise direction. As a result, it absorbs torsional vibrations.

Blocks heat transfer

Thermal coupling occurs when a solid block is thermally coupled to the air or fluid passing through it. The amount of heat transferred through a solid block depends on the heat transfer coefficients of the materials. This paper presents a numerical model to understand how heat transfers through different block materials. This work also describes the thermal resistance network for a one-dimensional block.
In some cases, thermal coupling increases the heat transfer mechanism. As illustrated in FIG. 1D, a heatpipe coupler 112 couples two heatpipes 110-1 and 110-2. This configuration allows the pipes to be coupled to the heat source and to the condenser. In addition, the heat pipe couplers may have bellows at the ends to help facilitate linear motion.
Thermal coupling is achieved by ensuring that at least one block is made of a material with a lower thermal expansion coefficient than the annulus. Ideally, the block’s mean thermal expansion coefficient is at least twenty percent lower than the annulus’s mean thermal expansion coefficient. This ensures that the thermal coupling between the two parts is as efficient as possible.
Another type of thermal coupling is achieved by using flexible elements. These are often washers or springs. These components allow the blocks to maintain physical contact with the post 55, which means that the heat transfer is more efficient even at higher temperatures. The flexibility of these elements also makes it possible to choose an element that will not impede assembly.

Protects rotating equipment

A reliable, long-lasting coupling system can reduce the risk of damage to rotating equipment. Designed to protect against torque overload and wear, Voith torque-limiting couplings provide outstanding safety and reliability. As a result, they can deliver maximum performance and minimize equipment downtime. In addition to their long-term benefits, these solutions are ideal for applications where safety and reliability are of paramount importance.
A good coupling provides many advantages, including the ability to transmit power, compensate for axial movement, and absorb shock. It is essential to choose the proper coupling for your application based on the basic conditions of your rotating equipment. For example, if you have two shafts with parallel rotation axes, you should choose a parallel coupling. Otherwise, you should use an angular coupling.
Torque-limiting couplings can also provide protection for rotating equipment by disengaging at a specific torque level. This protects the drive shaft from undergoing catastrophic failure. Torque limiters are particularly helpful for high-value equipment. By preventing catastrophic failure, you can avoid expensive repairs and minimize equipment downtime.
Coupling guards are easy to install and provide effective protection for rotating equipment. These covers are made of sheet metal bent to fit over the shaft. They are durable and easy to remove when necessary. This type of guard can prevent employees from catching their hands, tools, or loose clothing on motor coupling components.
China wholesaler HDPE Hot Melt Pipe Fittings DN125*90mm Buttfusion Reducer Coupling   a coupling reactionChina wholesaler HDPE Hot Melt Pipe Fittings DN125*90mm Buttfusion Reducer Coupling   a coupling reaction
editor by CX 2023-05-30

China PE HDPE Pipe Fittings Socket Reducer Reducing Coupling coupling constant

Item Description

PE HDPE Pipe Fittings Socket Reducer Lowering Coupling

Attributes of HDPE pipe fittings

one. Substantial corrosion resistance, prolonged services lifestyle (fifty a long time in typical use situations)
2. Excellent chemical balance, good overall flexibility and Toughness.
3.Light fat, easy to set up and transport, reduce routine maintenance fees.
four.Nontoxic,Recycled and Atmosphere-welcoming, environmental tension crack resistance.

HangZhou CZPT Engineering Co., Ltd. situated in HangZhou City of ZheJiang Province, is a professional maker of HDPE Pipe Fittings in China, we possess manufacturing lines which are from Germany and Italy, we have produced and created it because 2008, with large technologies of doing work expertise, we ensure our products’ top quality is significantly far more outstanding than other folks.

We know products’ quality is company’s lifestyle, so we are strict in testing all of items prior to delivery. All of products will be strictly inspected according to top quality administration method. 
Our quality is quite superb and our cost is extremely competitive. We have sold to far more than 60 international locations, this kind of as North The united states, South The usa, Europe, Southeast Asia, Africa, Oceania, Mid East. We would like to cooperate with much more customers without end!
Our principle: Outstanding Good quality, Competitive Price, Very best Provider,
Sincerely welcome you come to visit our factory at anytime! 

Q: What is the Raw material ?
A: 100% virgin raw materials.
Q: What is your MOQ?
A: As customers’ requests. 
Q: why pick us?
A: We are a specialist maker with aggressive price, very good good quality and rapidly delivery time.
Q: How to get the merchandise?
A: Deliver e-mail to me, we will reply to you within 1 day.
Q: Can you make specific Design and logo on product?
A: Of course, quite simple.

Make sure you contact me for a lot more details today!

HangZhou CZPT Engineering Co., Ltd.
Product sales Supervisor : Mr. Dave Liu
Cell Mobile phone:  15953296656 

US $1-100
/ Piece
1 Piece

(Min. Order)


Connection: Welding
Shape: Reducing
Head Code: Round
Technics: Casting
Color: Black
Transport Package: Packing


US $1-100
/ Piece
1 Piece

(Min. Order)


Connection: Welding
Shape: Reducing
Head Code: Round
Technics: Casting
Color: Black
Transport Package: Packing



What Is a Coupling?

A coupling is a device used to connect two shafts. It transmits power between them and allows for some misalignment or end movement. There are several types of couplings. The most common ones are gear couplings and planetary couplings. However, there are many others as well.

Transfer of energy

Energy coupling is a process by which two biological reactions are linked by sharing energy. The energy released during one reaction can be used to drive the second. It is a very useful mechanism that synchronizes two biological systems. All cells have two types of reactions, exergonic and endergonic, and they are connected through energy coupling.
This process is important for a number of reasons. The first is that it allows the exchange of electrons and their energy. In a single molecule, this energy transfer involves the exchange of two electrons of different energy and spin. This exchange occurs because of the overlap interaction of two MOs.
Secondly, it is possible to achieve quadratic coupling. This is a phenomenon that occurs in circular membrane resonators when the system is statically deflected. This phenomenon has been gaining a great deal of interest as a mechanism for stronger coupling. If this mechanism is employed in a physical system, energy can be transferred on a nanometer scale.
The magnetic field is another important factor that affects the exchange of energy between semiconductor QWs. A strong magnetic field controls the strength of the coupling and the energy order of the exciton. The magnetic field can also influence the direction of polariton-mediated energy transfer. This mechanism is very promising for controlling the routing of excitation in a semiconductor.


Couplings play a variety of functions, including transferring power, compensating for misalignment, and absorbing shock. These functions depend on the type of shaft being coupled. There are four basic types: angular, parallel, and symmetrical. In many cases, coupling is necessary to accommodate misalignment.
Couplings are mechanical devices that join two rotating pieces of equipment. They are used to transfer power and allow for a small degree of end-to-end misalignment. This allows them to be used in many different applications, such as the transmission from the gearbox to the differential in an automobile. In addition, couplings can be used to transfer power to spindles.


There are two main types of couplings: rigid and flexible. Rigid couplings are designed to prevent relative motion between the two shafts and are suitable for applications where precise alignment is required. However, high stresses in the case of significant misalignment can cause early failure of the coupling. Flexible couplings, on the other hand, allow for misalignment and allow for torque transmission.
A software application may exhibit different types of coupling. The first type involves the use of data. This means that one module may use data from another module for its operation. A good example of data coupling is the inheritance of an object. In a software application, one module can use another module’s data and parameters.
Another type of coupling is a rigid sleeve coupling. This type of coupling has a pipe with a bore that is finished to a specified tolerance. The pipe contains two threaded holes for transmitting torque. The sleeve is secured by a gib head key. This type of coupling may be used in applications where a couple of shafts are close together.
Other types of coupling include common and external. Common coupling occurs when two modules share global data and communication protocols. This type of coupling can lead to uncontrollable error propagation and unforeseen side effects when changes are made to the system. External coupling, on the other hand, involves two modules sharing an external device interface or communication protocol. Both types of coupling involve a shared code structure and depend on the external modules or hardware.
Mechanical couplings are essential in power transmission. They connect rotating shafts and can either be rigid or flexible, depending on the accuracy required. These couplings are used in pumps, compressors, motors, and generators to transmit power and torque. In addition to transferring power, couplings can also prevent torque overload.


Different coupling styles are ideal for different applications, and they have different characteristics that influence the coupling’s reliability during operation. These characteristics include stiffness, misalignment capability, ease of installation and maintenance, inherent balance, and speed capability. Selecting the right coupling style for a particular application is essential to minimize performance problems and maximize utility.
It is important to know the requirements for the coupling you choose before you start shopping. A proper selection process takes into account several design criteria, including torque and rpm, acoustic signals, and environmental factors. Once you’ve identified these parameters, you can select the best coupling for the job.
A gear coupling provides a mechanical connection between two rotating shafts. These couplings use gear mesh to transmit torque and power between two shafts. They’re typically used on large industrial machines, but they can also be used in smaller motion control systems. In smaller systems, a zero-backlash coupling design is ideal.
Another type of coupling is the flange coupling. These are easy to manufacture. Their design is similar to a sleeve coupling. But unlike a sleeve coupling, a flange coupling features a keyway on one side and two threaded holes on the other. These couplings are used in medium-duty industrial applications.
Besides being useful for power transmission, couplings can also prevent machine vibration. If vibration occurs in a machine, it can cause it to deviate from its predetermined position, or damage the motor. Couplings, however, help prevent this by absorbing the vibration and shock and preventing damage to expensive parts.
Couplings are heavily used in the industrial machinery and electrical industries. They provide the necessary rotation mechanism required by machinery and other equipment. Coupling suppliers can help customers find the right coupling for a specific application.

Criteria for selecting a coupling

When selecting a coupling for a specific application, there are a number of different factors to consider. These factors vary greatly, as do operating conditions, so selecting the best coupling for your system can be challenging. Some of these factors include horsepower, torque, and speed. You also need to consider the size of the shafts and the geometry of the equipment. Space restrictions and maintenance and installation requirements should also be taken into account. Other considerations can be specific to your system, such as the need for reversing.
First, determine what size coupling you need. The coupling’s size should be able to handle the torque required by the application. In addition, determine the interface connection, such as straight or tapered keyed shafts. Some couplings also feature integral flange connections.
During the specification process, be sure to specify which materials the coupling will be made of. This is important because the material will dictate most of its performance characteristics. Most couplings are made of stainless steel or aluminum, but you can also find ones made of Delrin, titanium, or other engineering-grade materials.
One of the most important factors to consider when selecting a coupling is its torque capability. If the torque rating is not adequate, the coupling can be damaged or break easily. Torque is a major factor in coupling selection, but it is often underestimated. In order to ensure maximum coupling performance, you should also take into consideration the size of the shafts and hubs.
In some cases, a coupling will need lubrication throughout its lifecycle. It may need to be lubricated every six months or even once a year. But there are couplings available that require no lubrication at all. An RBI flexible coupling by CZPT is one such example. Using a coupling of this kind can immediately cut down your total cost of ownership.
China PE HDPE Pipe Fittings Socket Reducer Reducing Coupling     coupling constantChina PE HDPE Pipe Fittings Socket Reducer Reducing Coupling     coupling constant
editor by czh 2023-01-28