I'm wondering if it self destructed shortly after that.
If I'm doing my math right, the time between the opening and closing of that valve is about .012 seconds. That entire video did not last 1 second in real time. It's amazing to see the amount of energy is in that bolt when it is ejected.
If it took one second to react to shut it down, the valve would have been cycled another 83 times. In the video it cycled 6 times before ejecting that bolt. I'm thinking it wasn't too pretty by the time they got it shut down.
Lawrenceville, GA