Well you're in the wrong forum - try the pipelines one instead.
But then please add much more detail than one line.
such as:
Length of pipeline,
diameter(s) of pipeline and branches
Can it be drained of its contents?
What dryness level do you need (dewpoint)
what are you thinking of doing?
Any constraints?
some back ground on you and the project always helps get some attention
do you have lots of power available?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
