In the realm of plumbing and piping, PVC (Polyvinyl Chloride) fittings play a pivotal role in connecting and directing the flow of water and other fluids. With a wide array of shapes and sizes, understanding the various PVC fittings and their names is crucial for any plumber, DIY enthusiast, or anyone involved in the industry. This comprehensive guide will delve into the world of PVC fittings, providing a detailed list of their names and functions.
Understanding PVC Fittings
PVC fittings are designed to join, change the direction, or branch out PVC pipes. They are lightweight, durable, and resistant to corrosion, making them a popular choice for various applications. PVC fittings are typically identified by their size, followed by a letter or abbreviation that indicates their type. The size refers to the inside diameter of the fitting.
PVC Fittings Name List: Tees and Couplings
| Fitting Name | Function |
|---|---|
| PVC Coupling | Connects two straight pieces of pipe end to end. |
| PVC Tee | Allows the flow to branch off in two directions. |
| PVC Reducing Tee | Allows the flow to branch off and reduces the pipe size. |
| PVC Bushing | Allows a change in pipe size, typically reducing the size. |
PVC Couplings
PVC couplings are simple fittings that connect two straight pieces of pipe end to end. They are available in various sizes and can be solvent-welded or mechanical (using compression or push-fit technology). Solvent-welded couplings are the most common and are joined using a PVC cement that melts the pipe and fitting together, creating a strong, leak-proof bond.
PVC Tees
PVC tees are T-shaped fittings that allow the flow to branch off in two directions. They are used to connect a branch line to a main line, such as when installing a faucet or shower on a water supply line. PVC tees are available in various sizes and can be solvent-welded or mechanical.
PVC Fittings Name List: Elbows and Unions
| Fitting Name | Function |
|---|---|
| PVC Elbow | Changes the direction of the pipe flow. |
| PVC Union | Allows the fitting to be disconnected and reconnected without cutting the pipe. |
| PVC Cap | Seals the end of a pipe. |
| PVC Cross | Allows the flow to branch off in three directions. |
PVC Elbows
PVC elbows are L-shaped fittings that change the direction of the pipe flow. They are available in various angles, including 22.5°, 45°, 90°, and 180°. PVC elbows are used to turn corners, navigate around obstacles, and change the direction of the pipe flow. They can be solvent-welded or mechanical.
PVC Unions
PVC unions are fittings that allow the fitting to be disconnected and reconnected without cutting the pipe. They consist of two halves that are screwed together, with a rubber gasket or O-ring to create a seal. PVC unions are used in applications where the fitting may need to be removed for maintenance or repair.
PVC Fittings Name List: Specialty Fittings
- PVC Check Valve: Allows fluid to flow in one direction only, preventing backflow.
- PVC Ball Valve: A quarter-turn valve that controls the flow of fluid through a pipe.
- PVC Gate Valve: A valve that controls the flow of fluid through a pipe, typically used in larger systems.
- PVC Union Tee: A combination of a tee and a union, allowing for easy disconnection and reconnection.
- PVC Wye: A fitting that allows the flow to branch off in two directions, with one branch at a 45° angle.
This comprehensive list of PVC fittings and their names should provide a solid foundation for understanding the various components used in PVC piping systems. Whether you're a professional plumber or a DIY enthusiast, familiarizing yourself with these fittings will help you tackle any plumbing project with confidence.