Questions regarding underground corrosion protection
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This post was last edited by Desert Fish on 2015-7-20 at 19:57. I would like to ask everyone for their knowledge regarding anti-corrosion measures when pipes are buried; please see below: 1. The ambient temperature can reach -42.6 degrees Celsius. L245N pipes are to be used, with the medium temperature ranging from 2.5 to 27.5 degrees Celsius. Since the pipes will be buried, is it sufficient to consider only 3PE anti-corrosion treatment? There’s no need to consider insulation, right? 2. The extreme environmental temperature is -42.6; what is the temperature of the permafrost layer in the soil? 3. Is there such a protection as 4pe anti-corrosion? 4. Is cathodic protection required when buried 60 meters deep? Buried at a depth of 3 meters. 5. Can buried pipes be designed with insulation and electric heating?
The thickness of the permafrost layer is determined based on local meteorological data. What is the medium?
Thank you for your reply; the medium is natural gas