What is the purpose of tapering pipe threads?

The purpose of tapering pipe threads is primarily to produce a tight joint. Tapered threads are designed so that as they are screwed together, the increasing diameter of the threads creates a wedging action, which compresses the threads against each other. This arrangement ensures that the joint becomes increasingly tight as more turns are made during the connection process, effectively minimizing the likelihood of leakage. The design of tapered threads helps to create a mechanical seal that maintains pressure and prevents fluid or gas from escaping.

While other options may appear relevant to pipe connections and sealing, tapering specifically enhances the ability to achieve a secure and tight joint, which is essential for the integrity of plumbing systems, pipelines, and other applications where pressure containment is critical.