Inflatable pipe plug - GIF

[Altair]

Inflatable pipe plug.




Previously:

Tampon leak plug - GIF
Human pipe cleaner - GIF
Man trapped inside sewage pipe - GIF
High pressure pump and gauge for burst testing pipe - photo
Laying miles of pipe in a ditch at once - GIF

[Toolmaker51]

Here, the best known are "Cherne". Unsure about this one, those usually are more flat-ended. But inflatable plugs are used in all kinds of instances, available in a wide range of sizes.

[Ralphxyz]

They are deflating the inflatable plug.

Ralph

[nova_robotics]

Neat. I'm familiar with carber plugs for hydrotests, but those aren't inflatable.