Steam Supply Line Sizing

Efficient operation of a steam system in general and steam traps in particular depends on the proper sizing of steam lines.

When steam lines are too large, purchase, installation and fitting costs increase substantially over the more appropriate smaller lines. Additionally, because their surface is greater, these larger lines waste more heat through radiation.

Undersized supply lines can create excessive pressure drop, which may result in insufficient steam pressure to the equipment. As pressure drops, steam velocity rises and energy is lost due to increased piping friction. The resulting increase in steam velocity can also result in a greater risk of water hammer.