T/CASEI 010-2022 Pressure pipe component manufacturing supervision and inspection implementation guidelines

Scope

Main technical content: This document specifies the relevant requirements, working procedures, inspection requirements, and evaluation of the implementation of the quality assurance system of manufacturing units for the supervision and inspection of pressure pipe components (hereinafter referred to as "supervision and inspection") during the manufacturing process. This document applies to the supervision and inspection work of pressure pipe components in the scope specified in the "Special Equipment Catalog" and the "Rules for Supervision and Inspection of Pressure Pipelines": (1) Submerged arc welded steel pipes and polyethylene pipes (Note 1-1); (2) Gas pressure regulating devices, steam pressure reducing devices, prefabricated pipe sections (Note 1-2), and flow meters (housing) (Note 1-3) in the assembly devices of components. Note 1-1: This does not include polyethylene pipes with metal frames and fiber-reinforced polyethylene pipes. Note 1-2: Pre-fabricated pipe sections refer to pipe element products welded and assembled by manufacturing units in factories according to construction design drawings and then delivered as a whole, including manifolds, filters, separators, condensate (gas) tanks, dirt separators, mixers, buffers, receiving and sending coils, and boom pipes, etc. This does not include pipe prefabrication carried out at construction sites. Note 1-3: Steam pressure reducing devices, prefabricated pipe sections, and flow meters (housing) used in boiler piping can be manufactured and inspected in accordance with the relevant regulations for boilers.

Development Information

Related Standards