T/ZZB 2924-2022 Active Group standards

T/ZZB 2924-2022 Marine gas-tight double-walled pipe

Publish Date: 2022-12-08 Implement Date: 2022-12-31 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZZB 2924-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Ship pipeline accessories

ICS Name: \n Piping system

Publish Date: 2022-12-08

Implement Date: 2022-12-31

Scope

Main technical content: This document specifies the terms and definitions, classification, structural types, and main parameters of marine gas transmission double-walled pipes (hereinafter referred to as double-walled pipes), basic requirements, technical requirements, test methods, inspection rules, marking, certificates, and user manuals, packaging, transportation and storage, and quality commitments. This document is applicable to stainless steel rigid pipes with a design pressure not exceeding 60.0 MPa and a design temperature not lower than -196 °C, with a nominal diameter of DN20 to DN450, and used for transporting natural gas, liquefied natural gas, liquid ammonia, methanol, etc. Double-walled pipes with a nominal diameter of less than DN20 or greater than DN450 for the gas inner pipe may also refer to this document for implementation. Note: In this standard, unless otherwise specified, the pressure refers to the gauge pressure.