What type of valve is typically placed between the condenser and the turbine when operating in condensing mode?

In a condensing mode operation, the valve typically placed between the condenser and the turbine is crucial for managing the flow and pressure of the steam system. The atmospheric relief valve serves the primary purpose of preventing overpressure in the condenser by allowing excess steam or non-condensable gases to escape to the atmosphere. This is essential for maintaining safe and optimal operating conditions and avoiding damage to the system.

The use of an atmospheric relief valve in this context ensures that the pressure remains within safe limits, allowing the turbine to operate efficiently without risking equipment failure due to excessive pressure build-up. It also plays a significant role in protecting the integrity of the condenser by ensuring that any sudden increase in pressure can be handled safely.

Other types of valves, such as check valves or ball valves, serve different functions within the steam system. A check valve is typically used to prevent backflow, a ball valve is primarily used for isolation, and a control valve regulates flow and pressure but does not specifically handle situations of excess pressure as an atmospheric relief valve does. Understanding these functions helps clarify why the atmospheric relief valve is the appropriate choice in this scenario.