What types of cast steel pipe fittings are there?

Connecting fittings to construct pipelines with cast steel pipes is quite straightforward, isn’t it? You cannot fully install the pipeline without these cast steel pipe fittings.

While these types of fitting are commonly used in various projects, many people are not aware of the different types available.

Flange fittings connecting cast steel pipes

Flanges are a type of fitting and also a method of connecting pipes, valves, pumps and other equipment to form a piping system.

Flanges usually have 2 main connection methods to the pipeline:

• Connect by direct weld to pipe end
• Threaded connection

Cast steel pipe welding fittings

Welded tee for connecting cast steel pipes

The first welding fitting is the welding tee.

Welded tees are divided into 2 more types, which are: equal tee and reducing tee.

Welded tee fittings are often used in branching sections of cast steel pipes. Depending on the design of the system, it will be necessary to use a regular tee or a reduced tee.

• Tees are used when the pipes branch at right angles to each other, and the diameters of the two pipe sections are equal.
• Reducing tees are also used in the same position, but on condition that the branch pipe section must be smaller than the main pipe section.

Welding tees are crucial in water pipe systems. They allow the system to branch from one pipe into several or combine multiple branches into a main pipe.

The material used to make welding tees is also similar to the pipe: steel tees and stainless steel tees. And of course, depending on the environment of use, the steel pipe material used. Choose the appropriate material welding tee.

Reducer – Reducer for cast steel pipes

The next welding fitting is the steel reducer (many places also call it a concentric reducer).

The reducer, as its name implies, has a funnel-like shape, with one end being larger than the other.

Currently, there are two types of reducers available on the market: concentric reducers and eccentric reducers. Pipeline engineers will select the appropriate type based on the construction conditions.

Reducing fittings is commonly used to connect sections of cast steel pipes within the same branch while decreasing the pipe diameter.

In the construction of fire protection systems for apartment buildings, reducing fittings is typically employed to decrease the pipe size between two or three floors at a time.

The same principle applies to the construction of cast steel pipes for domestic water supply. The pipe sections closer to the end of the system, such as those near a house, are usually smaller in diameter than the main branch or the pipes leading from the factory.

Elbows – Welded steel elbows connecting cast steel pipes

Another equally popular welding fitting is the welding elbow

Their role is to navigate the pipeline system of liquids, steam, oil, and gas.

You might be curious about what navigation is at this point, right?

Just imagine those curves. Some are 90 degrees, while others are smaller or even 180 degrees

In reality, when constructing a pipeline system, you will encounter similar situations. As you may know, cast steel pipes are generally straight, except for smaller pipes that can be bent. However, large-diameter cast steel pipes cannot be bent.

A welded elbow fitting is required.

Welding cap for seamless steel pipes

An essential fitting for welding is the welding cap. This fitting is primarily used at the end of a cast steel pipe. Its main function is to seal the pipe’s end securely, which helps prevent any leakage of the internal fluid.

In many instances, a blind flange may serve as an alternative to a weld cap.

Cast steel pipe threaded fittings

The article about types of seamless steel pipes mentioned by Bao Tin Steel, it discusses various types of cast steel pipes that have threaded ends.

Many customers purchasing cast steel pipes from Bao Tin Steel request that the ends be threaded.

To connect these threaded pipes, it is mandatory to use threaded fitting.

Below are the threaded fittings for cast steel pipes that you need to use:

• Threaded tee (MIHA copper threaded tee, brass tee)
• Threaded reducer
• Threaded elbow
• Threaded bush
• Threaded cap

If customers are interested in the cast pipe fitting products mentioned above, they should not overlook this article about the price list for cast steel pipe fittings.

Through this article, you will learn about the essential fittings needed for pipeline construction. If you need to purchase materials, fittings, or steel products, please contact Bao Tin Steel!

In addition, Bao Tin Steel Company Limited also distributes cast steel pipes, large-sized steel pipes, black steel pipes, galvanized SeAH, Hoa Phat square steel, steel pipe fitting, fire protection materials…

Tiger Steel is a subsidiary of Bao Tin Steel