What is the minimum pipe size for all gauge glass connections?

The minimum pipe size for all gauge glass connections is 1/2 inch. This size is specified to ensure that the gauge glass can function effectively by providing an adequate flow of liquid, thereby allowing accurate readings of the liquid level within a vessel. Using a pipe size smaller than 1/2 inch could lead to issues such as blocked flow or inaccurate readings, which could compromise safety and operational efficiency.

Additionally, in high-pressure systems or where the liquid may be volatile, using a larger pipe may sometimes be recommended, but the 1/2 inch standard serves as the minimum requirement across various applications. This ensures consistency and reduces the likelihood of failures due to pressure and flow issues that could arise with improperly sized connections.