Looking for a tool to draw pipe networks

Dear knowledgeable(lazy)web,

I have a friend who’s looking for a free software application to draw pipeline networks using the Piping and Instrumentation Diagram Standard Notation such as this example:

He didn’t find any and resorted to draw each possible elements in svgs he later intend to import as symbols in Dia.  Does such a thing already exist? or is there another specialized tool that comes with such symbols?

Answer in comments to this post. Thanks!