Recent content by caet

To BigInch: Is it possible to use pig (with wire brush) in line with standard elbow (e.g. 20", LR)?

To zdas04: I think pennpiper disagrees with you on posteriority of flushing and hydrotest. please see http://www.eng-tips.com/viewthread.cfm?qid=274170&page=1

As i've heard, one of the objective of flushing of piping is to remove internal scales which are formed after first pass of pipe weldment. This will be achieved by high speed circulation of fluid (in case of gas piping, i think water). In case of pipeline, how we can remove these scales (and...

As i know flushing will be done in a closed circuit. What about the cost of a return line for a long pipeline?

Is there any code or standard which requires flushing before hydrotest in gas pipeline? If not, how certainty of cleaning is achieved?

Hey Biginch, Did you censored some items?[wink]

Thank you for your responses.

I want to know, which one,normally, proceed the other. Any explanation will be highly appreciated.