T/ZZB 0991-2019 Active Group standards

T/ZZB 0991-2019 Parallel Double Gate Valves for Petrochemical Use

T/ZZB 0991-2019 Parallel double-check valve control valve for use in petrochemical industry

Publish Date: 2019-03-15 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 0991-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: \nValve

ICS Name: Gate valve

Publish Date: 2019-03-15

Implement Date: 2019-03-31

Scope

Main technical content: This standard specifies the terms and definitions, basic requirements, basic parameters and structural types, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments for parallel double-gate control valves used in petrochemical industries. The structural type of the control valves specified in this standard is a parallel double-gate valve; the end of the valve body is connected by a flange or butt welding, and the valve cover is connected by bolts, with a lifting stem structure. The control valves are made of steel and are suitable for use in petroleum, petrochemical, natural gas, and related industries. They are applicable to nominal pressures of PN16 to PN420 (ANSI Class 150 to Class 2500) and nominal diameters of DN40 to DN1000 (NPS1-1/2 to NPS40), with operating temperatures ranging from -100°C to +550°C. The control valves can be used to control the flow of pipeline media and adjust its flow. This standard applies to pneumatic, electric, or electro-hydraulic control valves, and the relevant contents also apply to independent actuators and valve assemblies.