After the oil has overcome the highest point in its journey, it begins its descent towards the Ecuadorian coast; therefore, the energy it develops during its descent has to be controlled.
For this, we have two pressure reducing stations and a 4-valve reducing arrangement at the input of our last station: the Marine Terminal at Esmeraldas. The purpose of all these stations is to reduce the pressure accrued by the oil through reducing valves so that the oil may be stored and afterwards dispatched to tanker vessels.
This requires passing the fluid through the labyrinths of discs comprising the reducing valves in order to continue with the pumping.
The operation of the reducing valves requires the support of auxiliary systems so that they may have available, compressed air, electrical power, and fuel, among others.