There are NO strict rule written but when I gone through some technical articles I found some guidelines, which I am deriving in steps so as to focus in the problem. My doubt is how to appropriately support the pipe. So just posting here, request all the members throw some light on the issues. I was analyzing the system and got jumbled in some questions. I am a budding piping engineer involved mostly in the pipe stress analysis. I feel piping and piping support is an art, which comes from a rich work experience and sharing the learning so as others can avoid the mistake and can deliver good and safe design to customer an ultimately to the people.