Welding Pressure Pipeliners and Piping Systems

Welding Pressure . PIPELINES &. Piping Systems . Procedures and Techniques Table of Contents Introduction ..3. Vertical Down vs. Vertical Up ..3-4. Cross Country Pipeline-Vertical Down Welding Joint Preparation ..4. Pipe End Cleaning ..4-5. Welding the Root Pass ..5-6. Current Settings w/Lincoln Engine Driven Welders .6-7. Root Pass Welding ..7. Root Pass Troubleshooting ..7. Techniques for Welding Hot Pass ..8. Techniques for Welding Fill and Cap ..8. Setting the Current etc..8-9. Preventing Cracking.

Techniques for Welding Fill and Cap . . . . . . . . . . . . . .8 ... beyond the edge of the bevel. • One recommended means of cleaning pipe is with a straight shaft grinder with a rubber expanding wheel and carbide coated sleeve. A sanding disc can also be effective, as well ... is not obvious by looking at the dials on the machine how to ...

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  Technique, Beyond, Obvious

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