Dielectric unions are made from plastic or porcelain, while brass tone fittings are made from metal. Dielectric unions are used to connect two pieces of plastic piping, while brass tone fittings are used to connect two pieces of metal piping. Dielectric unions can be used with PVC, CPVC, and ABS piping, while brass tone fittings can only be used with metal piping.
What is Dielectric Union?
A dielectric union is a specialized type of slip coupling that is used to connect two pipes made from dissimilar materials. The key difference between a dielectric union and a standard slip coupling is that the former has a dielectric insert that helps to prevent corrosion by electrical current. Dielectric unions are commonly used in situations where it is necessary to connect copper pipes to steel pipes, or where two pipes made from different types of plastic need to be joined together.
What is Brass Fitting?
A brass fitting is a type of pipe fitting that is used to connect two pieces of pipe or tubing together. Brass fittings are made of solid brass and are available in a wide variety of sizes, shapes, and designs. Brass fittings are often used in plumbing applications because they are durable and resistant to corrosion.
Brass fittings can be used with both copper and steel pipes and tubing, and they are available in a variety of thread types. Brass fittings are also easy to install and remove, making them a popular choice for many home improvement projects.
Difference between Dielectric Union and Brass
A dielectric union is a type of fitting that is used to connect two pieces of pipe together, while a brass fitting is used to connect copper tubing. Both types of fittings are designed to create a watertight seal, but they differ in their material composition and method of installation.
- Dielectric unions are made of non-conductive materials, such as PVC or ABS plastic, and they have a neoprene gasket that creates a watertight seal. Brass fittings, on the other hand, are made of a conductive material and they rely on solder to create a watertight seal.
- When installing a dielectric union, the pipes must be clean and dry before the fitting is installed. The union nut is then tightened by hand until it is snug against the pipe.
- Brass fittings must also be installed on clean and dry pipes, but the fitting must then be soldered in place using a propane torch. Dielectric unions are more expensive than brass fittings, but they are easier to install and they do not require soldering.
Although brass and dielectric unions have some similarities, there are also several key differences. Dielectric unions are made of plastic or other non-conductive materials, while brass unions include a small amount of copper to help with conductivity. Brass unions are also less likely to corrode over time than dielectric unions.