T/ZZB 0992-2019 Active Group standards

T/ZZB 0992-2019 Gas-resistant buried polyethylene (PE) valve

Publish Date: 2019-03-21 Implement Date: 2019-03-31 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 0992-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Gas supply equipment

ICS Name: Ball valve

Publish Date: 2019-03-21

Implement Date: 2019-03-31

Scope

Main technical content: This part specifies the terms and definitions, structural forms, product classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and product accompanying documents, quality commitments, and after-sales services for buried polyethylene valves used for gas, with polyethylene as the valve body (hereinafter referred to as "valves"). This part applies to buried polyethylene valves for gas made from PE 80 or PE 100 compounds. The valves specified in this part are intended for use with pipe materials specified in GB/T 15558.1—2015 and pipe fittings specified in GB/T 15558.2—2005, and are used for gas transmission. This part applies to two-way valves with socket ends, where the dimensions of the socket ends of the valves comply with GB/T 15558.2—2005. The valves are used for connection with pipe materials that comply with GB/T 15558.1—2015 and pipe fittings that comply with GB/T 15558.2—2005. This part applies to valves with a nominal diameter of less than or equal to 400 mm, and an operating temperature range of -20 °C to 40 °C. When transporting artificial gas and liquefied petroleum gas, the adverse effects of other components (such as aromatic hydrocarbons, condensate, etc.) in the gas on the valve performance at certain concentrations should be taken into account.