T/ZZB 2275-2021 Active Group standards

T/ZZB 2275-2021 Corrosion-resistant nickel-base alloy welding ball valve for use in corrosive environments

Publish Date: 2021-08-25 Implement Date: 2021-09-25 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 2275-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: \nValve

ICS Name: Ball valve

Publish Date: 2021-08-25

Implement Date: 2021-09-25

Scope

Main technical content: This document specifies the structural type, basic requirements, technical requirements, test methods, inspection rules, marking, protection, packaging and storage of nickel-based alloy welded ball valves for corrosion resistance. This document is applicable to nominal pressures of PN16 to PN400, nominal sizes of DN50 to DN1400, pressure grades of Class 150 to Class 2500, nominal sizes of NPS2 to NPS56, applicable temperatures of -46°C to 425°C, and nickel-based alloy welded forged steel ball valves used for corrosive media with flange connections.