KRSServices, thanks for your response. The project for the most part relates to underground piping of materials similar to beer. All of the regs that I have found so far relate to petroleum products only, and excludes any other. One of things that I am worried about is the pipe joints where...
KThomson; I agree with CVG. Don't mess with the gas line. any shift in your line or any ground movement, could stress the gas line and cause a problem.
A question to anyone who has experience in design of underground pipelines to transfer food grade, high pressure (600 psi), flammable liquids such as ethanol or alcohol. What are the design regulations that apply to this type of design?