Plant girl

Yep, a picture is worth a thousand words. The "one on the right with the little bump" is the valve used to inflate the balloon to hold in your tube. It does not connect to your stomach but only to the balloon. So the only danger is that it could be damaged or have leaked and your tube is just hanging in your stomach. And that's not much of danger since all that would happen is your tube would come out a day early.

I wish I could tell you from experience how fast the hole would completely heal, but all I can share is that the first time my tube fell out due to a broken valve like yours, the hole had narrowed so much in one hour that they had difficulty putting a replacement in. But luckily for you, OCF has plenty of posters who had temporary PEGS so they would know . I know it took my tracheotomy stoma about two months to heal but it was so much bigger.
Charm