Looks like a simple ANTI-BACKFLOW VALVE would work................
What’s the difference between a check valve and an anti-backflow valve?
Except that contains parts. The more parts the bigger chance of trouble.
At minimum a Check valve would have: A Case or Body, a Spring and a Ball.
A Rupture Disk has 1 moving part.
See My Post above for a Link with details and Pics.
Check valve?