42cl per second of water is easy to move.
however 700 litters per seconds of steam at 1Bar absolute is quite a challenge.
As I said Alain: The driving force is the vacuum which is close to zero pressure at the condensation site (rememember water T 60 C!) . But the surface where the condensation happens must be big enough. We know nothing about it. The whole system is far away to be critical in any respect. Problems would only then occur, if the steam speed would go up, close to half the sound speed!
Let's have fun with the brilliant mixture of IH & Rossi. Hollywood will make a great movie, some time soon, I believe...