Spurs' director of football Franco Baldini travelled to Valencia on Monday to meet with the club and the player's representative, but they are yet to agree a deal, with the Primera Division side refusing to lower their asking price.
Salvo told EFE: "Soldado can go if he wants - for 30million and under our conditions.
"Valencia never had any intention of selling Soldado. If he goes then it is because the 30million figure has been met, not a cent less or a cent more.
"The buying club will also have to accept Valencia's conditions of payment also.
"We agreed to meet Tottenham again to discuss the ways of paying and we did that because we understood that his buy-out clause would be met.
"Speaking about ways that deals are paid is normal and this will be done in a way that suits the financial department of Valencia and not that of any other clubs.
"We listened to him and we said what we have always said - that the price is 30m, then the boy himself can decide if he leaves and that the conditions of pay are what they are."