explain meaning | Eng-Tips
Jun 23, 2006 · Jeeping is checking the external corrosion coating for pinholes. Done with a hi voltage loop placed around and passed down the pipe. The electrical field is measured and monitored by the …
How to determine voltage for Holiday Test | Eng-Tips
Apr 24, 2012 · Hi Everybody I want to know how to determine the voltage for Holiday test in Underground Pipes. Is It related to pipe thickness or Polyethylene coating thickness? How does it …
Air Test on Water Main | Eng-Tips
Sep 20, 2006 · We have a Client that has engaged us to design a new trunk water main for its distribution system. Part of the work has taken place this summer,yet there are several other phases …
Underground Stainless Steel Piping | Eng-Tips
Jun 14, 2004 · Need some advice on direct burial of stainless steel piping. An EPC contractor constructing a new power plant has direct buried high pressure natural gas supply lines to the …
CSA Z662 pipeline code hydrotesting requirements and hold times
Jun 22, 2016 · thread378-247995 There are two category of pressure testing according to CSA Z662. Operating pressure greater than 700 KPa and operating pressure less than or equal 700 KPa. For …