Rugani, 24, has been linked with Premier League giants Chelsea throughout the transfer window after former Napoli head coach Maurizio Sarri replaced Antonio Conte at Stamford Bridge.
And Torchia says even a massive offer from the Premier League side wasn't enough to tempt the Italians.
"Juventus have no desire to sell him, not even for a high price which, among other things, no-one in Italy could afford," Torchia told RMC Sport .
"However, the player has never asked to leave. Only when a very important offer arrives is it normal to listen, but Juventus have rejected all kinds of offers to keep him in Turin.
"Chelsea made a really big bid, which was close to being unthinkable for me, but Juventus didn't relent.
"[Sami] Khedira played only 10 more games than Daniele last season. I think Rugani can play even more this season."
Rugani will still have plenty of competition for a place in the side with Leonardo Bonucci having returned to Turin in the deal that saw Caldara and Gonzalo Higuain join Milan .