Forged knee

Introduction to high pressure forged elbow

Forged elbow joints are among the most important high pressure parts. Elbows are one of the most important tools in the piping system. Because by using this fitting in the transfer of fluids, you can easily change the path of the pipes. In the following, you will get to know the features and types of high pressure forged elbows produced by Alborz Part Jahan Company.

What is a knee?

It is better to give a comprehensive definition of a knee before dealing with anything else. An elbow is actually a connection that is used in various plumbing industries to change the direction of the pipe. There are different types of forged elbows based on their uses, which are mentioned below.

Types of high pressure elbows

The elbow of the pipe is divided according to the following 4 items:

Radius
material
angle
Connection type
Types of high pressure forged elbows in terms of radius

Knee joints are also divided into two categories in terms of radius.

Forged elbow with short radius
Compression elbow with long radius

If the radius of the elbow is equal to the radius of the pipe, it is called a short radius elbow. This widely used connection is used for lines with low pressure and flow rate. But if the diameter or radius of the elbow is greater than the radius of the pipe, it is called a long radius elbow. Long radius high pressure forged elbow is used for those pipelines that have high pressure and flow rate.

The type of pipe elbow in terms of material

The most common and best-selling materials that are used to make joints and produce by the forging method include the following:

Carbon steel
Stainless steel
aluminium
copper
rubber
Types of polymers
Types of high pressure elbows based on angle

In terms of angle, elbows are generally made at three angles: 45, 90, and 180 degrees. However, it is possible to make elbows in other sizes based on the needs of a project and customer in Alborz Part Jahan.

Types of forged elbows in terms of connection

One of the most important classifications of knee types is based on their connection type. In the following, after presenting the types of forged elbows based on the connection, we will explain each one.

Ribbed or threaded
Sukti
Joshi
reducer

Ribbed or threaded elbow

One of the most widely used high pressure forged fittings is the ribbed elbow fittings. These elbow joints, due to having threads or ribs on it, connect metal pipes and different valves to each other. This piece has advantages and disadvantages as follows:

Advantages of threaded elbow

Long useful life
Withstand very high pressures
High resistance to bending and rust
Having different angles to change the path of fluids in the piping system

Disadvantages of rib knee

Its almost heavy weight
Lack of flexibility
The heavy cost of the ribbed elbow compared to other joints

socket knee

As it is clear from the name of this knee, the connection of this knee is in the form of a socket. The opening has a larger diameter, so that the pipe is placed inside it and welded from the outside.

reducing knee

This forged elbow is used to connect two pipes with different diameters. One of the advantages of the reducing elbow is that it prevents excessive pressure reduction in the line, also leading to reduced erosion effects.

A swollen knee

Welded elbow is used like other elbows to change the direction of flow and change the direction of the pipe. In this compressive knee, the edges of the knees are welded together. The model and placement of the two edges is in the form of a groove in the middle of the two edges. This groove is filled by welding. Therefore, it has more resistance in high temperature and pressure. Among the different types of this connection, we can mention polyethylene, steel and copper knees.

What is the difference between welded and forged elbows?

In the welding elbow as described above, two edges are welded to each other. But in forging production, the initial piece is placed in the middle of two plates. Then they hit it hard and sometimes gently with a high force.

Conclusion

The main goal of Alborz Part Jahan company is to provide the highest quality products at the lowest prices. You can contact the experts of Alborz Part Jahan collection for advice and purchase. In this way, you can have the best purchase in the field of high pressure forging elbow.