A system for a power generation plant includes a boiler having a superheater, a first header fluidly coupled to an outlet of the superheater and being configured to receive steam from the superheater, a turbine elevated to a location generally adjacent to the outlet of the superheater, and a main steam piping system extending from the first header to the turbine and being configured to direct a flow of the steam from the first header to the turbine. The system further includes a flexible portion upstream from the first header operative to flex with respect to the first header and the boiler due to a thermal displacement of the boiler.

A liquid-to-vapor conversion device includes a chamber having an opening connected to a liquid intake, a pressure relief opening, and a vapor outlet. The device also includes a flow controller arranged at the level of the liquid intake, and a burst disk installed at the level of the pressure relief opening. Further, the device includes pressure-limiting means arranged at the level of the liquid intake. The pressure-limiting means is configured to decrease the flow rate in the liquid intake when the pressure in the liquid intake exceeds a threshold value smaller than a bursting pressure of the burst disk.

A liquid-to-vapor conversion device includes a chamber having an opening connected to a liquid intake, a pressure relief opening, and a vapor outlet. The device also includes a flow controller arranged at the level of the liquid intake, and a burst disk installed at the level of the pressure relief opening. Further, the device includes pressure-limiting means arranged at the level of the liquid intake. The pressure-limiting means is configured to decrease the flow rate in the liquid intake when the pressure in the liquid intake exceeds a threshold value smaller than a bursting pressure of the burst disk.