Where should the steam gauge be connected to the boiler?

The steam gauge should be connected on the top of the water column or steam drum because this positioning allows for the most accurate assessment of the steam pressure within the system. When the gauge is placed at the highest point, it ensures that it measures only the steam pressure that is readily available to the system, eliminating any potential interference from water or other condensates that may be present lower in the system.

Also, placing the gauge at the top helps to avoid moisture carryover that can occur with steam moving through a piping system, which can lead to misleading readings if the gauge were positioned elsewhere. This accurate measurement is critical for safe and efficient boiler operation, enabling the operator to monitor and adjust steam conditions effectively.