Gas Pipeline Repairs by using steel sleeves
Gas Pipeline Repairs by using steel sleeves
(OP)
When fit up is concern for type "A" steel sleeves for gas pipe line, to accommodate the pipe Seam- Weld Reinforcement one of the options to be used is listed below.
1)Removal of the seam weld ( Required Area) by grinding
2)Grinding an accommodating groove in the sleeve
3)Locating the gap between the sleeve halves over the seam
4)Filling all voids in the area where the sleeve bridges the seam weld reinforcement with epoxy or polyester filler material
These are the options given in the PCRI Pipeline repair manual. Having said that I feel that option 1 causes problems mainly due to removal of capping welding run from the weld and might causes problems on the long run. If someone had some experience of involving and having own company procedures I would like to here from you'll regarding pros and cons of the above mentioned options
1)Removal of the seam weld ( Required Area) by grinding
2)Grinding an accommodating groove in the sleeve
3)Locating the gap between the sleeve halves over the seam
4)Filling all voids in the area where the sleeve bridges the seam weld reinforcement with epoxy or polyester filler material
These are the options given in the PCRI Pipeline repair manual. Having said that I feel that option 1 causes problems mainly due to removal of capping welding run from the weld and might causes problems on the long run. If someone had some experience of involving and having own company procedures I would like to here from you'll regarding pros and cons of the above mentioned options





RE: Gas Pipeline Repairs by using steel sleeves
The biggest problem today with flush grinding is the tendency of workers to excessively grind/gouge into the base material and weld due to inadequate training and supervsion.
RE: Gas Pipeline Repairs by using steel sleeves
This method aside, of the others I would say epoxy filler is also a good option.
RE: Gas Pipeline Repairs by using steel sleeves