T/ZZB 2999-2022 Active Group standards

T/ZZB 2999-2022 Flange and butt welding corrosion-resistant gate 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 2999-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: \nValve

ICS Name: Gate 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 and labeling, packaging, transportation and storage, and quality commitments for flange and butt-welded connection corrosion-resistant gate valves. This document is applicable to nominal pressures of Class 150 to Class 300, nominal sizes of DN15 to DN600, with bolt (or screw) connection of the valve cover, lifting valve stem, non-lifting handwheel, wedge or parallel type, valve body made of stainless steel, metal surface of the valve seat, flange or butt-welded connection, and gate valves with hard alloy and higher performance materials on the sealing surface (hereinafter referred to as gate valves). Its applicable media include oil and oil-related products, natural gas, steam, etc.