What is the most popular pipe joint?

• A. Push on joint
• B. Bell-and-spigot joint
• C. Welded joint
• D. Compression joint

Answer: (A)

Push-on joints are favored because they provide a fast, easy way to seal pipe sections in the field without heat, threading, or complex tools. The joint uses a bell on one pipe end with a rubber gasket inside and a plain spigot on the other end that slides into the bell until it’s seated. A retaining mechanism or compression ring locks the joint and keeps it watertight under pressure. This design makes installation quick, inexpensive, and adaptable to minor misalignments or ground movement, which is especially valuable for PVC and other plastic piping in distribution systems.

Other options involve more labor or specialized steps: bell-and-spigot joints can require careful sealing and caulking in iron systems; welded joints are permanent and not easily repaired in the field; compression joints are more expensive per connection and typically used for smaller lines or service connections.