What size piping connection requires consideration for adjustable hangers?

When considering adjustable hangers for piping connections, the primary factor is the potential for movement in the piping system due to thermal expansion and contraction. The specific diameter of 2 inches typically comes into play because this size begins to require more significant expansion considerations compared to smaller diameters.

At 2 inches, the chance of thermal expansion causing the pipe to move more than with smaller sizes becomes apparent. Adjustable hangers are designed to provide flexibility, allowing the piping system to expand and contract without putting undue stress on the connections or joints. This helps in maintaining the structural integrity of the system while ensuring proper function.

While smaller sizes like 1 inch or 1 1/2 inches may not require the same level of flexibility due to their lower expansion rates, the increase in diameter to 2 inches necessitates the use of adjustable hangers to accommodate the potential for movement effectively. Thus, 2 inches is the size at which consideration for adjustable hangers becomes critical, marking a point of transition where the design must account for these factors more closely.