T/GDASE 0031-2022 Regular inspection rules for welding equipment for polyethylene piping used for gas
T/GDASE 0031-2022 Regular inspection rules for welding equipment for polyethylene piping used for gas
Basic Information
Scope
Main technical content: This document specifies the terms and definitions, general principles, inspection of electric fusion welding machines, inspection of fully automatic thermal fusion welding machines, inspection of semi-automatic thermal fusion welding machines, inspection conclusions and determination rules, and requirements for inspection reports for regular inspections of polyethylene gas pipelines welding equipment. This document is applicable to the inspection of the performance of polyethylene gas pipelines welding equipment in service, including electric fusion welding machines (voltage-controlled type), fully automatic thermal fusion welding machines, and semi-automatic thermal fusion welding machines. The inspection of other plastic pipe connection thermal fusion and electric fusion welding equipment can be carried out in accordance with this document.