T/ZZB 1526-2020 Active Group standards

T/ZZB 1526-2020 Wave tube sealing steel stop valve

Publish Date: 2020-02-01 Implement Date: 2020-03-01 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 1526-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: \nValve

ICS Name: Gate valve

Publish Date: 2020-02-01

Implement Date: 2020-03-01

Scope

Main technical content: This standard specifies the structural form, basic requirements, technical requirements, component materials, test methods, inspection rules, marking, supply requirements, and quality commitments of bellows-sealed steel shut-off valves. This standard applies to nominal pressures of PN16 to PN250, nominal sizes of DN15 to DN400, and nominal pressures of Class 150 to Class 1500, nominal sizes of NPS1/2 to NPS16, operating temperatures of -29 ℃ to 538 ℃, and end connection forms of flange, butt welding, socket welding, and threaded connections. The bellows-sealed steel shut-off valves (hereinafter referred to as shut-off valves) with bolted connections, self-sealing connections, and welded connections between the valve body and valve cover are also subject to this standard. Bellows-sealed steel throttle valves and bellows-sealed steel check-shut-off valves can also be implemented in accordance with this standard.