T/ZZB 2878-2022 Active Group standards

T/ZZB 2878-2022 Metal Sealing Axial Flow Check Valve

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 2878-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: \nValve

ICS Name: Check valve

Publish Date: 2022-12-08

Implement Date: 2022-12-31

Scope

Main technical content: This document specifies the terms and definitions, structural types, basic requirements, technical requirements, test methods, inspection rules, marking, painting, packaging and storage of metal-sealed axial flow check valves (hereinafter referred to as axial flow check valves). This document is applicable to metal-sealed axial flow check valves with nominal sizes of DN50 to DN1800, nominal pressures of PN16 to PN400, nominal sizes of NPS 2 to NPS 72, pressure classes of Class 150 to Class 2500, and end connections of flange or welded connections, suitable for temperatures ranging from -29°C to 649°C. Metal-sealed axial flow check valves with end connections of threaded or clamp connections shall be subject to the same requirements.