What is the typical size of an NH3 drip leg pipe that fits through the roof?

The typical size of an NH3 drip leg pipe that fits through the roof is the same size as the connected pipe. This design choice is crucial as it helps maintain the integrity of the system and ensures that the drip leg is properly sized for effective drainage of ammonia or any liquid that may accumulate. By using the same diameter as the main line, you prevent any potential issues such as turbulence or inadequate drainage that could occur with pipes of different sizes.

This sizing also complies with common engineering practices, which aim for uniformity in piping systems to facilitate consistent flow characteristics and reduce the chances of complications during operation. Moreover, having the drip leg the same size allows for easier installation and maintenance, as all components will fit seamlessly with existing piping configurations.