Specifications for process interconnections to utilities 1

[sgoel]

Whata are the standards available for process interconnections to utilities. I am specifically looking for Nitrogen connections to process lines.

Thanking you in anticipation please.

Best Regards

 

[brainstorming]

If I understand your question well, then the following would be the answer:

Double block valves with a check valve in between plus a figure 8 blind.

This what I used to see in most of the utilities connection piping with the process stream piping to avoid contamination of the process.

Cheers

 

[IPGBen]

In any case, if you connect any utility-line to a process line/vessel etc. you'll need some sort of back-flow protection.
This can be in the form of a check valve or instrumented system.

Grtz
Ben