What is a typical operating pressure for a one pipe steam system?

A typical operating pressure for a one pipe steam system is commonly 2 psig or less. This low-pressure operation is often employed to effectively transfer heat through the steam and utilize it for heating applications. The low pressure helps in ensuring safety and reducing the risk of leaks or other issues that can arise with higher pressure systems.

Operating at 2 psig or less allows for the efficient movement of steam while minimizing the risk of excessive wear on the system's components. Additionally, lower pressures lead to less energy consumption, making the system more efficient and cost-effective for heating purposes. In many residential and small commercial applications, this pressure range is sufficient to meet the heating requirements while ensuring reliable performance.

Higher pressures, as seen in other options, are generally not typical for one pipe systems, as they are designed for specific applications that require more energy or have different operational requirements.