T/ZZB 3341-2023 Active Group standards

T/ZZB 3341-2023 Power plant high-temperature and high-pressure stop valve

Publish Date: 2023-11-10 Implement Date: 2023-11-20 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 3341-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Steam turbines and their auxiliary equipment

ICS Name: Gas turbines, steam turbines, and steam engines

Publish Date: 2023-11-10

Implement Date: 2023-11-20

Pages: 15 pages

Scope

Main technical content: This document specifies the models, structural forms, and basic parameters of high-temperature and high-pressure shut-off valves (hereinafter referred to as shut-off valves) used in thermal power plants, as well as the basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage, and quality commitments. This document applies to welded shut-off valves used in the steam and water systems of thermal power plants with a pressure rating greater than PN100 (Class 600) and less than or equal to PN760 (Class 4500), or with an operating temperature greater than 425 ℃ and less than or equal to 630 ℃.