What is the difference between various PVC pipe joints?

What is the difference between various PVC pipe joints?

With the development of social economy, light weight, durable, multi-functional PVC tube has been more and more widely used. We now use all kinds of pipes at home and in the courtyard. It is a common mode of transportation for hot and cold drinking water, sewage and drainage systems. However, only by connecting them with pvc pipe coupling can they play a greater role. So, do you know any pvc pipe coupling? What’s the difference between these joints? Next, we briefly introduce some contents of pvc pipe coupling, hoping to help you better use PVC pipe.

The main points are as follows:

♦ What is a pvc pipe coupling

♦ The difference between various pvc pipe coupling

♦ How to bond pvc pipe coupling with PVC glue

♦ Conclusion

What is a pvc pipe coupling

The main ingredient of PVC pipe is PVC. Other components are added to enhance heat resistance, toughness and ductility. The top layer of the surface film is paint. The main component in the middle of the pipe is POLYvinyl chloride, and the bottom layer is the coating adhesive on the back. It is one of the simplest PVC connectors. This joint is usually permanently connected or “coupled” from one part to another. They can connect pipes to pipes, connect pipes to fittings, or even connectors. Some of these are even reduced, so you can connect small tubes to large tubes and vice versa. For PVC pipe fittings, we can provide sliding or threaded ends upon your request.

The difference between various pvc pipe coupling

PVC pipe is a kind of pipe used in decoration at present. When decorating with PVC pipes, it is necessary to use some pipe fittings with different structures to change the direction of pipes for the sake of construction. Let’s show you about these different PVC fittings.

(1) Shun Shui San Tong

Shunshui tee is a kind of pipe fittings in drainage pipeline, which is used for vertical connection of branch pipe and main pipe. Although it is a vertical connection, the connection between the branch and the main pipe is not a vertical cross, but a small part of the arc connected along the direction of water flow, which makes the branch water very smooth. It flows to the main pipe. The commonly used three-way downstream PVC, small radian, is to play the role of downstream.

(2) Think along the river

Four connections are pipe fittings and pipe connectors. Also known as quadruple joint or quadruple joint, quadruple joint for main branch. PVC four-way nozzle has the same diameter and different diameter, and the same size as the four-way nozzle with the same diameter; the four-way nozzle with different diameter has the same size, while the nozzle size of branch pipe is smaller than that of main nozzle. Four-way is a kind of pipe fittings used in branch of pipeline.

(3) 45 degree elbow

45 degree elbows are fittings and fittings. For main and branch pipes. Change the direction of the pipe.The 45 elbows commonly used in daily life are basically made of PVC, because they are of good quality and more convenient to use.The connection modes of PVC 45 degree elbow and pipeline include direct welding (commonly used) flange connection, hot melt connection, electric melt connection, threaded connection and socket connection. According to the production process, it can be divided into welding elbow, punching elbow, pushing elbow, casting elbow, etc.

(4) 90 degree elbow

The 90 degree elbow made of PVC is a kind of pipe fittings commonly used for pipeline installation, which is used to connect pipeline bending and change pipeline direction. Usage: Connect two pipes of the same or different nominal diameters to make the pipes rotate at different degrees of 90 degrees.

How to bond pvc pipe coupling with PVC glue

Step 1:

Choose fine saw, cutter or special PVC pipe crusher to cut PVC pipe according to the corresponding size.

Step 2:

The burrs and edges of the fracture were removed and chamfered with a plate hammer. Before using the adhesive again, dry the socket with a dry cloth to dry the dust, water and oil on the surface.

Step 3:

Apply the adhesive evenly to the socket surface with a brush.

Step 4:

Find the center of the two pipes and pipes, quickly insert the socket into the socket and rotate one third of the circle, and keep it still for at least 10 minutes so that the adhesive can be evenly distributed and cured.


Therefore, with the increasing application of pvc pipe coupling, more and more pvc pipe coupling have been invented and put into use. Compared with other housekeepers, pvc pipe coupling have more outstanding characteristics, such as light weight, high compressive strength, corrosion resistance and so on. They are welcomed by the engineering community. So, if you want to know more about it or want to buy our products, please feel free to contact us, we are happy to answer your questions.

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