For a low-pressure steam boiler, what would be the maximum steam pressure setting?

In the context of low-pressure steam boilers, the maximum steam pressure setting is typically defined by regulatory standards. For low-pressure steam systems, the standard maximum allowable pressure is 15 pounds per square inch gauge (psig). However, it's important to note that some scenarios or systems might be specified to operate at higher pressures within regulated limits, which could lead to confusion.

Setting a maximum pressure of 30 psig exceeds the classification for low-pressure steam boilers, which is defined as having a maximum operating pressure up to and including 15 psig. This is crucial for ensuring safe operations, as exceeding this threshold can introduce risks associated with higher temperature and pressure levels, which are more typical in high-pressure systems.

Thus, while 30 psig might represent a common misconception about permissible steam settings in low-pressure boilers, maintaining operations within the defined low-pressure range—capped at 15 psig—is essential for both safety and compliance with applicable standards.