Different Types of Pipe Fittings in Plumbing Systems

Dec. 02, 2022

The plumbing system is one of the most common transmission systems in our daily life. Plumbing systems are used to transport various fluids, including various liquids or gases such as water, oil, and natural gas. The Plumbing system is distinguished from the material. There are different materials such as copper, iron, steel, plastic, etc. According to the different fluids to be transported, it is necessary to use a piping system of suitable material. The Plumbing system is distinguished by its shape and consists of only two parts, which are straight pipes and pipe joints of various shapes that link the straight pipes. The shapes of pipe fittings are different and mainly divided into the following categories: elbows, tees, crosses, unions, reducers, unions, flanges, etc. Next, I will take the malleable pipe fittings produced by Jianzhi Group as an example to introduce the functions of these types of pipe fittings.

Table of contents


Elbow Pipe Fittings

In piping systems, elbows are pipe fittings that change the direction of the piping. According to the angle, there are three most commonly used ones: 45°, 90°, and 180°. In addition, according to engineering needs, other abnormal angle elbows such as 60° are also included. The ways to connect with the pipe are direct welding (the most commonly used way) flange connection, hot-melt connection, electric fusion connection, thread connection, socket connection, etc.

Jianzhi 90° elbow 

Jianzhi 90° elbow


Tee Pipe Fittings

The tee is the connecting piece of the pipe. It is used to change the direction of the fluid, and it is used at the branch pipe of the main pipe. Tee is a chemical pipe fitting with three openings, namely one inlet and two outlets; or two inlets and one outlet. The junction of three identical or different pipelines.


Jianzhi tee equal 

Jianzhi tee equal


Cross Pipe Fittings

The four general purposes are at the main branch pipe of the main pipeline. The four-way can be divided into equal diameters and different diameters. The pipe ends of the equal-diameter four-way are all the same size; The cross is a pipe fitting used at the branch of the pipe.

Jianzhi equal cross 

Jianzhi equal cross 

Coupling Pipe Fittings

A pipe coupling is a short piece of pipe used to connect two pipes. Many pipe couplings are connected by threads, which are divided into internal threads and external threads, and are also divided into equal diameters and different diameters. Equal-diameter pipe couplings are used to connect pipes of equal diameter, and different-diameter pipes are used to connect pipes of different diameters. Because of their convenient use, pipe couplings are widely used in civil construction, industry, agriculture, and other fields.

Jianzhi coupling equal 

Jianzhi coupling equal


Unions Pipe Fittings

A union is a common pipe connector that can be easily installed and disassembled. The pipe fittings connecting two pipes can separate the two pipes without moving the pipes, which is convenient for maintenance. Contains 3 parts: a threaded head, a ball head, and a tight cap. The sealing surface inside the union includes a flat surface (with a gasket), a spherical surface, a conical surface, and so on. There is butt welding, socket welding, screw thread, etc. for the connection between the union and the pipeline.

Jianzhi union 

Jianzhi union


Plug Pipe Fittings

Pipe plugs refer to externally threaded pipe fittings used to block internal threads at the end of pipes. Installed on the internal thread of the pipe end. There are square pipe plugs and hexagonal pipe plugs. The function of a pipe plug is to completely block a certain port of the pipe. Most pipe plugs are connected by threads, and high-quality threads ensure the tightness of the pipeline system.

Jianzhi square pipe plug 

Jianzhi square pipe plug


Cap Pipe Fittings

The pipe cap is a pipe fitting that is welded on the pipe end or installed on the external thread of the pipe end to cover the pipe. It is used to close the pipeline and has the same effect as pipe plugging. The purpose of pipe cap and pipe plug is similar, but the occasion of use is different. The pipe cap is suitable for the external thread pipe port, and the pipe plug is suitable for the internal thread pipe port.

Jianzhi round caps 

Jianzhi round caps

Yes, Jianzhi Group provides all the malleable products mentioned above. As a well-known high-quality supplier of malleable pipe fittings in China, Jianzhi Group has the largest professional malleable steel production plant in China. The following briefly introduces the outstanding advantages of the Jianzhi Group.


1. Good quality

a. The heaviest quality

Compared with the national standard products, the quality of Jianzhi products is the heaviest, which is obviously heavier than the national standard products of the same specifications from any domestic manufacturer.

b. The most beautiful appearance

Due to years of experience in modeling and casting and leading technical advantages, Jianzhi's products have the best appearance in China, and the galvanized surface is smooth and flat. Due to the fine sand, there are no large concave sand holes and residue marks on the surface.

c. The most precise thread

As mentioned in the threading process above, the pipe thread standard for Jianzhi is the strictest in the industry. The length and accuracy of the pipe thread strictly follow the national standards, the installation is simple and trouble-free, and the sealing performance is good.

2. Sufficient production capacity and stable supply

The production capacity of Jianzhi Group has reached an annual production capacity of 400,000 tons. It is the only enterprise in China that can still produce at full capacity without being affected by the national environmental protection policy. Therefore, Jianzhi Group's products can provide customers with a guaranteed production cycle and delivery cycle, so that customers will not suffer from shortages.


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E-mail: sales1@jianzhi-fitting.com

Tel: +86 022 8848 8866

Office In Tianjin:

Heping District, Tianjin, China.

Production Base 1:

Chifeng, Inner Mongolia, China.

Production Base 2:

Tangshan City, Hebei Province, China.

Production Base 3:

Schelei Street,Baicoi City,Prahova County,Romania

Service email: info.ro@jianzhi-fitting.com

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Tel: +40(755)011 849