Galvanized connections are one of the most common types of connections that are mostly used to connect galvanized pipes. Normally, the price of galvanized fittings is a little higher than other fittings due to the additional process that is done on Mannesmann pipe or regular seamed pipe, but these fittings are stronger and more resistant and are very resistant to moisture and decay. Pipes and fittings Galvanized is one of the types of metal pipes.
Application of galvanized fittings
Galvanized metal fittings, like other types of fittings, are used to change the piping route, change the size of the pipe diameter, connect the pipe to the device, and also create a branch in the pipe. The most common applications of galvanized joints are in the oil and gas industry, as well as the transfer of various fluids, steam and air. The important point about galvanized joints is that this type of joint should never be used for gassing. Because the coating of zinc metal on the surface of these joints is destroyed by exposure to gas and causes the gas piping path to be closed. Hot galvanization of the joints increases the life and resistance of the joints and from this Today, connections that are galvanized through this method are used in high voltage power towers. In contrast, galvanizing connections by cold method, which is much cheaper and simpler than hot method, is used for bolt and nut connections. Among the most important applications of galvanized iron connections, the following can be mentioned:
Features of galvanized fittings
The act of galvanization in galvanized joints makes these joints have high resistance in any weather conditions and on the other hand, they are resistant to rust and chemicals. The purer the galvanized material used for the process of galvanizing the fittings is, the better it is absorbed by the body of the fittings and therefore increases the strength of the fittings. Another point is that the galvanization process can be done in the fittings as well. He made black seams and Manisman connections; Therefore, it is very important to pay attention to this issue in choosing the type of galvanized joints in the piping system. Also, galvanization is performed on seamed pipes and Manisman pipes.
Types of galvanized fittings
Galvanized joints have different types and are generally divided into 3 common categories, which are welded, ribbed and flanged joints. Welded joints are a type of galvanized joints that are connected by welding. Rib joints are one of the most common types of galvanized metal joints, and the most important limitation of this type of joints is that they are produced in specified sizes from about 10 to 12 cm.
One of the most common types of connections in galvanized pipes are flanged connections. These connections are usually made of cast iron alloy and are connected to the end of the pipe in the form of ribs or welding. These connections are used to close the pipes when changing the direction or changing the diameter of the pipe, and it is also called valve-to-pipe connector. But apart from this category, there are different types of galvanized joints, which you can learn about below.
1- Knee fittings
Elbow joints are generally used to change the direction of piping at angles of 45 degrees, 90 degrees and 180 degrees.
2- Cover fittings
One of the types of galvanized steel fittings are caps, which are used to block the end of the piping route permanently.
3- Three-way connections
Tee is another type of galvanized steel connections, which are divided into three types of converted tees, slanted tees and equal tees. The conversion tee is used to change the diameter of the pipe. An equal tee is used to create three equal branches in the pipe, and a crooked tee is used when the arms have a smaller angle and are perpendicular to the pipe.
4-
Galvanized iron couplings are designed in such a way that they have ribs both in their internal and external parts and are used to connect a pipe to a connection or two connections to each other.
5. Bush connections
Bushing is a common connection for connecting two pipes or one pipe to a device, whose rib is placed in the inner part of the connection.
6. Chat connections
Gap fittings, whose rib is placed on the outer part of the joint, are used to block the end of the pipe path.
7. Left connections
The elbow is used to change the direction of the steel pipe. One side of these connections has an internal gear and the other side has an external gear.
8. Crossroads
This type of connection is used for branching and usually has two to three external ribs. Four-way fittings are used to connect a pipe to four separate branches.
9. Massera vertebral fittings
Spool nut connections are multi-piece connections that are used to connect the pipe to the device in spaces where there are restrictions.
10. Brain fittings
Brain connectors are used to connect two devices together. One of the most important appearance features of these galvanized joints is that its two sides are designed in the form of ribs.
11. Converter connections
Conversion fittings are used to connect two pipes of different sizes. This type of connections are usually designed in the form of ribs both in their inner and outer parts.