Installation and Inspection Procedure of Pipe Welding Using GTAW Method Based on ASME Standards

Abstract

The piping installation process involves connecting pipes based on ASME standards using Schedule 20 and Schedule 40 pipes with diameters ranging from 2” to 32”. The pipe joining process is carried out using either electric welding or argon welding methods. Gas Tungsten Arc Welding (GTAW) is applied, utilizing LINCOLN 6010 electrodes for the root pass and LINCOLN 6011 electrodes for the fill pass. After welding, the newly joined pipes must be inspected by a Quality Control (QC) officer using X-ray radiographic testing to detect any internal welding defects. Following radiographic inspection, sandblasting is performed using silica sand once the pipe surface has been properly ground and smoothed. The piping installation follows a circular connection pattern, meaning all pipe ends are continuously joined without interruption. Finally, the piping system is installed on a piperack structure and connected to a storage tank for fluid containment.