The non-return stop valve in a steam system is typically connected to what?

In a steam system, the non-return stop valve is primarily connected to the steam boiler outlet. This valve plays a crucial role in preventing the backflow of steam from the system into the boiler, thereby ensuring that the steam flows in the correct direction from the boiler to the heat exchangers or distribution system.

When the valve is positioned at the outlet of the steam boiler, it serves to isolate the boiler from the distribution system during maintenance or in an emergency. This is vital for safety and operational integrity, as it prevents potentially hazardous situations where steam could flow back into the boiler when it is not operational or when there is a drop in system pressure.

Understanding the function of the non-return stop valve and its connection highlights the importance of controlling and directing steam flow effectively within a power generation system, ensuring reliability and safety.