Feb 9, 2020 #1 jithin john Mechanical Oct 2, 2019 16 Can anybody tell me how this hole formed in this pipe line ? thank you https://files.engineering.com/getfile.aspx?folder=6eb6c957-8886-4227-9201-491acbcd3710&file=WhatsApp_Image_2020-02-02_at_9.25.46_PM.jpeg
Feb 9, 2020 #2 LittleInch Petroleum Mar 27, 2013 21,339 Bit difficult to tell but looks like a manufacturing defect to me ( slag or similar inclusion) Or a corrosion hole. Remember - More details = better answers Also: If you get a response it's polite to respond to it. Upvote 0 Downvote
Bit difficult to tell but looks like a manufacturing defect to me ( slag or similar inclusion) Or a corrosion hole. Remember - More details = better answers Also: If you get a response it's polite to respond to it.
Feb 9, 2020 #3 mk3223 Mechanical Feb 4, 2006 1,482 Is it possible the pipe was dented from outside first, and then corroded? Upvote 0 Downvote
Feb 12, 2020 #4 Dhurjati Sen Materials Dec 14, 2017 948 Dear jithin john, The pit initiated from the surface that is shown in the photograph. Refracory material is visible. Was it a case of improper refractory application? Material, service, years, required for further guidance. Regards. DHURJATI SEN Kolkata, India Upvote 0 Downvote
Dear jithin john, The pit initiated from the surface that is shown in the photograph. Refracory material is visible. Was it a case of improper refractory application? Material, service, years, required for further guidance. Regards. DHURJATI SEN Kolkata, India
Feb 12, 2020 Thread starter #5 jithin john Mechanical Oct 2, 2019 16 thank you every one for your replies , its a ductile iron pipe with cement lining .DN 600 pressure in pipe around 8-12 bar flow 500-600 m3/h the pipe was laid 3 meters below the ground service ; more than 10 years recently there was a leak .while trenching we found heavy rocks https://files.engineering.com/getfile.aspx?folder=b637e069-a370-4e81-a32c-608fa4e97aa9&file=WhatsApp_Image_2020-02-03_at_11.16.33_PM_(2).jpeg Upvote 0 Downvote
thank you every one for your replies , its a ductile iron pipe with cement lining .DN 600 pressure in pipe around 8-12 bar flow 500-600 m3/h the pipe was laid 3 meters below the ground service ; more than 10 years recently there was a leak .while trenching we found heavy rocks
Feb 14, 2020 #6 Dhurjati Sen Materials Dec 14, 2017 948 Dear jithin john, Service is water? Length of pipe? You are doing the right thing, putting a patch is fine. Sometimes you weld a box with a valve at 6 o'clock which drains out the water during welding and you close it after you finish welding. Regards. DHURJATI SEN Kolkata, India Upvote 0 Downvote
Dear jithin john, Service is water? Length of pipe? You are doing the right thing, putting a patch is fine. Sometimes you weld a box with a valve at 6 o'clock which drains out the water during welding and you close it after you finish welding. Regards. DHURJATI SEN Kolkata, India
