A GI union is a pipe fitting variety that is made of galvanized steel and is commonly used to connect two pipes in a way that they can be easily and quickly disconnected or reconnected. The GI union is made up of three parts: the female and male end, and a nut, with the male and female threaded to connect the two pipes while the nut is the one that tightens their connection. This kind of design makes the installation and disassembly of the pipes a lot quicker and easier, making it perfect for applications where regular maintenance or repairs are required.
GI Union Prices
GI union prices can vary depending on the materials they are made of and their sizes. On average it can cost from around ₱135.00 to ₱525.00.
| Description | Size | Price |
| Heavy Duty Galvanized GI Union | 1/2 | ₱135.00 |
| Heavy Duty Galvanized GI Union | 3/4 | ₱165.00 |
| Heavy Duty Galvanized GI Union | 1 | ₱200.00 |
| Heavy Duty Galvanized GI Union | 1/4 | ₱260.00 |
| Heavy Duty Galvanized GI Union | 1 1/4 | ₱345.00 |
| Heavy Duty Galvanized GI Union | 2 | ₱525.00 |
Advantages of GI Union
Cost-Effective – GI unions are generally more affordable than other materials such as stainless steel which is why they are mostly preferred for projects where budget is of great concern. The lower cost of these unions does not compromise their basic functionality and durability, making them a cost-effective solution for various plumbing and piping applications.
Leak-Proof Connections – The threaded connection design of GI unions ensures a tight and leak-proof seal which helps reduce the risks of water or gas leaks in the piping system.
Availability – These union varieties are widely available at hardware stores and plumbing supply stores making them obtainable without much hassle. Their availability adds to their convenience and makes them a practical choice for many plumbing and piping needs.
Disadvantages of GI Union
Limited Lifespan – Even though they are durable, the zinc coating on GI unions can still wear off over time which in turn reduces the GU union’s lifespan.
Maintenance Requirements – This variety of union does require regular maintenance, such as reapplication of zinc coating or replacement, to ensure its continued corrosion resistance and functionality.
Susceptibility to Damage – The zinc coating on galvanized iron unions can be susceptible to damage during handling, transportation, or installation which could lead to potential issues in the future.
Video of GI Union
FAQs
What is the use of GI union?
The GI union is a pipe fitting variety that is commonly used to join two pipes together in a way that it greatly reduces and eases its reconnection and disconnection.
What is a galvanized union?
A GI union is a type of pipe fitting that is made of galvanized steel with the function of joining two pipes together.
Can you use galvanized union for gas?
It is not advisable to use galvanized pipe for gas because of the galvanized coating that could react with natural gas over time, leading to the formation of flammable gas mixtures.
How do you install a galvanized union fitting?
To install a galvanized union fitting, you would typically follow these steps:
- Shut off the water supply to the pipes.
- Use a pipe wrench to loosen and remove any existing fittings or pipes.
- Apply pipe thread sealant.
- Screw the male end of the union onto the other pipe.
- Use a second pipe wrench to hold the female end of the union in place while tightening the nut and sleeve onto the male end.
What is the process of joining galvanized pipes?
The process of joining galvanized pipes involves threading the ends of the pipes and using fittings such as unions, elbows, and tees to connect them together.