T/ZZB 3390-2023 Active Group standards

T/ZZB 3390-2023 Three-rod switching valve for large air separation equipment

Publish Date: 2023-11-10 Implement Date: 2023-11-25 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 3390-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: \nValve

ICS Name: Other valves

Publish Date: 2023-11-10

Implement Date: 2023-11-25

Pages: 14 pages

Scope

Main technical content: This document specifies the structural type, parameters, and usage conditions of the three-rod switching valve (hereinafter referred to as the three-rod valve) used in large-scale air separation equipment, as well as the basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and quality commitments. This document is applicable to three-rod valves with a nominal pressure of PN6 to PN16 or Class 150 to Class 300, a nominal size of DN300 to DN1800 or NPS 12 to NPS 72, and a medium temperature of -40°C to 425°C for air or nitrogen.