Where;
• X” – the nominal size of the pipe
• SVC – the service code for the material that normally flows in the line (see examples below for list)
• ET:SVC – a unique line tag that includes two parts, the equipment tag from which the line originates followed by a unique sequential number
• LS –line specification for the pipe, including class and material type, valves etc.
Service Codes, SVC
Service codes are abbreviations for the fluid the line primarily handles.