If you are gonna run pipe use the largest diameter you can afford, up to a point. The longer the run the larger the pipe. People make the mistake of using higher pressure to make up for pressure drop over long distances. This is truly a big mistake. This scheme results in much more water in the air delivered. And also in energy wasted. This wasted energy shows itself in higher power bills and less air delivered. And water in the air. So, decide yourself if the piping you want to use is up to then task but then make sure to use large diameter pipe. Over 20 years ago I went through all the calculations required when I installed new air piping in a machine shop I worked in. Being a machinist and not a pneumatic engineer I ended up learning a lot. But the biggest item that could ruin the whole thing was piping that was too small and pressure that was too high for the job. You really want the pressure delivered from the compressor to be not much higher than the system pressure and you want the piping to be large enough to avoid pressure drop that is below what the tools being powered require. It is a BAD thing to have your air powered tools or air guns lose power. This at the very least causes water to drop out of the compressed air which then flows along the bottom of the plumbing until it comes out of your air tool or air gun. The compressor should be up to the task and then some. Probably twice for a home shop.
Eric
