Merchandise Description

PPR feminine Screw-thread coupling DN20mm-DN110mm Europe Standard


one. Non toxic and hygienic. PP-R has only carbon and hydrogen elements as raw supplies, and there are no harmful and poisonous factors. It is sanitary and reputable. It can be used not only in sizzling and chilly drinking water pipes, but also in pure ingesting water method.

two. Warmth preservation and energy saving. The thermal conductivity of PP-R pipe is .21w/mk, only 1 / two hundred of that of metal pipe.

three. Good heat resistance. Vicat softening point of PP-R tube is 131.5. The maximum operating temperature can attain ninety five, which can meet up with the use requirements of very hot h2o method in the constructing drinking water offer and drainage code.

four. Prolonged provider lifestyle. The services lifestyle of PP-R pipe can be more than fifty several years underneath the situation of functioning temperature 70 and doing work pressure (P.N) 1.ompa, and far more than a hundred a long time underneath the problem of regular temperature (20).

five. Convenient set up and trustworthy connection. PP-R has very good welding functionality. Pipes and pipe fittings can be linked by sizzling melting and electric melting. It is effortless to put in and trustworthy to hook up. The energy of the link part is better than that of the pipe by itself



RITAI PIPE Group was created in 2001 in CHINA,and up until nowadays is a pioneer in the subject of floor heating and plumbing pipe method. 
With much more than twenty year’s extensive encounters in pipe creation, ISO ,and many others. Certificated qualification and strict regular,Employing the most superior technological innovation products as properly as high quality uncooked supplies for our merchandise,permit us hold extremely aggressive in the current market place.What is actually much more,we are the initial manufacturer in China that started out creating PE-Xa pipes,Definitely the foremost maker in China.we have also served numerous massive popular project in China(for case in point,ZheJiang Worker’s athletics stadium etc.),We are self-assured that our items will satisfy your quality even though chopping your expense.

Now Our goods have been exported to many nations,This kind of as Russia, Ukraine, Spain, Brazil and so on., which have been very praise and status from overseas customers.We will be your reliable and reputable lengthy-phrase associate.


Bundle & Delivery:


one.The place is your manufacturing facility situated in?

Our factory positioned in HangZhou City, which is only 2.5 several hours away from ZheJiang City by quick train

two.Can you supply us some samples for tests?

Ok, no issue . To permit you have a excellent understanding of our merchandise good quality,
Sample is accessible for you.

three.Which kind of payment phrases you usually do?

We normally do T/T, But L/C is no problem.

four.How about the shipping time?
For small order, 15 times is ok,large order maybe will 30 times.

five.Do your factory can give OEM Solutions?

Sure, we can make item by customers’ unique need.
We have many OEM Clients from Europe and Southeast Asia

OEM: Yes
Transport Package: Carton
Specification: 16mm to 110mm
Trademark: Ritai
Origin: China


OEM: Yes
Transport Package: Carton
Specification: 16mm to 110mm
Trademark: Ritai
Origin: China



Programming With Couplings

A coupling is a mechanical device that connects two shafts together and transmits power. Its purpose is to join rotating equipment and allows some degree of end-movement or misalignment. There are many different types of couplings. It’s important to choose the right one for your application.

Mechanical connection between two shafts

There are many ways to achieve mechanical connection between two shafts, including the use of a coupling. One common type is the beam coupling, which is also known as a helical coupling. It is used for transmission of torque between two shafts. This type of connection accommodates axial, parallel and angular misalignments.
The hubs and shafts of a worm gear are connected together by a coupling. This mechanical connection allows one shaft to turn another without causing a mechanical failure. This type of coupling is made from sliding or rubbing parts to transfer torque. However, the coupling is not designed to withstand jerks, so it isn’t suitable for high-speed applications.
The use of a coupling is common in machinery and equipment. It helps transmit power from one drive shaft to the other, while adding mechanical flexibility. It is also useful for reducing the impact and vibration caused by misalignment. It also protects the drive shaft components from wear and tear.
A double-hook coupling can be used to provide a uniform angular velocity at the driven shaft. Another example is a double-jointed coupling. A double-jointed coupling can be used to connect shafts that are not directly intersecting. The double-jointed yoke can be used for the same purpose.
A shaft coupling is a device that maintains a strong mechanical connection between two shafts. It transfers motion from one shaft to another, at all loads and misalignments. Unlike a conventional linkage, a shaft coupling isn’t designed to allow relative motion between the two shafts. Couplings often serve several purposes in a machine, but their primary use is torque and power transmission.

Functions that control the flow of another function

One of the simplest programming constructs is a function that controls the flow of another function. A function can take an argument and return a different value, but it must be ready to return before it can pass that value to another function. To do this, you can use the goto statement and the if statement. Another way to control flow is to use a conditional statement.

Criteria for selecting a coupling

There are several important factors to consider when choosing the right coupling. One of the most important factors is coupling stiffness, which depends on the material used and the shape. The stiffness of a coupling determines its ability to resist elastic deformation. A stiff coupling is desirable for certain types of applications, but it’s undesirable for others. Stiffness can reduce the performance of a system if there’s too much inertia. To avoid this, ensure that the coupling you choose is within the recommended limits.
The size of a coupling is also important. Different coupling types can accommodate different shaft sizes and shapes. Some couplings have special features, such as braking and shear pin protection. When choosing a coupling, you should also consider the type of driven equipment. If you need to connect a high-torque motor, for example, you’ll want to choose a gear coupling. Likewise, a high-speed machine may require a disc coupling.
Another factor to consider when selecting a coupling is the torque rating. Despite its importance, it’s often underestimated. The torque rating is defined as the torque of the coupling divided by its OD. In some cases, torque may fluctuate during a cycle, requiring a coupling with a higher torque rating.
Torsionally flexible couplings are also important to consider. Their design should be able to withstand the torque required during operation, as well as the required speed. The coupling should also have a high degree of torsional stiffness, as well as damping. Furthermore, a damping coupling can reduce the energy wasted through vibration.
The sizing of a coupling is also determined by the torque. Many engineers use torque to select the correct coupling size, but they also take into consideration torsional flexibility and torsional stiffness. For example, a shaft may be able to handle large torque without damaging the coupling, while a disk may be unable to handle large amounts of torque.
Besides torque, another important consideration in coupling selection is the cost. While a coupling may be cheaper, it may be less reliable or easier to maintain. Couplings that are difficult to service may not last as long. They may also require frequent maintenance. If that’s the case, consider purchasing a coupling with a low service factor.
There are many different types of couplings. Some require additional lubrication throughout their lifetime, while others are 100% lubrication-free. An example of a 100% lubrication-free coupling is the RBI flexible coupling from CZPT. This type of coupling can significantly reduce your total cost of ownership.
In addition to the above-mentioned benefits, elastomeric couplings are low-cost and need little maintenance. While they are often cheaper than metallic couplings, they also have excellent shock absorption and vibration dampening properties. However, they are susceptible to high temperatures. Also, they are difficult to balance as an assembly, and have limited overload torque capacity.
China PPR Female Screw-Thread Coupling Dn20mm-Dn110mm Europe Standard     coupling capacitanceChina PPR Female Screw-Thread Coupling Dn20mm-Dn110mm Europe Standard     coupling capacitance
editor by czh 2022-12-16