How can a plastic drain body be connected to a piping system?

Connecting a plastic drain body to a piping system typically requires a method that maintains the integrity of the material and ensures a secure, leak-proof connection. Using a threaded joint is an effective way to achieve this. In plastic piping systems, the threaded joint is commonly made by cutting threads into the plastic material, allowing it to be connected to other components that also have matching threads, either plastic or metal. This method provides a durable and adjustable connection, which is necessary for maintaining the performance of the system.

The other connection methods involve limitations. For example, welding with metal is not applicable since plastic cannot be effectively welded to metal without compromising the joint. Clamps may provide some level of connection but are not reliable on their own for long-term secure fittings in a drain system. Lastly, while rubber seals are often used to create a watertight interface, they cannot serve as the sole method for connecting a plastic drain body to the piping system. They are generally part of a more comprehensive connection that might include threads or other fittings. Thus, the threaded joint stands out as the most effective and appropriate method for connecting plastic components in plumbing applications.