Pipe fittings play an integral part in the functionality of your pipes as the wrong fitting selection can cause poor water flow and a number of other issues. For this reason, it's imperative that you make the right selection. While there is a host of considerations to look at when making your choice, the material of the fitting and its style are two of the most important factors to consider.
When shopping for pipe fittings, you will be presented with a number of options. Some of these options include galvanized steel, brass, alloy and copper, as well as reinforced plastic options like ABS and PVC. When it comes to choosing an option, it's not as simple as saying one option is better than the other – the better solution is to choose a fitting that is constructed from the same material as the pipes that you will be using the fitting to connect.
The reason this step is important has to do with temperature changes. For example, when very cold liquids are passed through pipes and fittings, this will generally cause them to constrict. However, the rate at which these components constrict will vary depending on the material they are made from. If you choose different materials, with varying constricting rates, this could cause blockages and other issues within the pipe system.
Make sure you understand that there is no one-size-fits-all design when it comes to pipe fittings. There is a range of options available; however, the two most common are drain waste vent, or DWV, and pressure fittings. Exactly how you plan to use the fittings will offer the greatest indication as to which option is going to be a better selection for you. The DWV fitting is all about maximizing gravity.
It's best to use this type of fitting below ground when the goal is to push the water down further below the surface. This option is generally designed with a small slope that helps the water flow downward faster. On the opposite end is the pressure fitting. It's best designed for use in common applications like bathrooms and kitchens because it is designed to help push the water upward. For most residential and commercial applications, you will need a pressure fitting.
Make certain you are taking your time to select the right option that will best meet your specific needs. It's also important not to overlook the assistance of a professional (such as one from Liberty Hose & Supply Inc) if you need help making a decision.