T/AHVAXH 12504.3-2025 Active Group standards

T/AHVAXH 12504.3-2025 Check valve - Part 3: Intelligent electric butterfly check valve with slow closing function

Publish Date: 2025-06-27 Implement Date: 2025-06-30 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/AHVAXH 12504.3-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Medical ultrasound, laser, and high-frequency instruments and equipment

ICS Name: Check valve

Publish Date: 2025-06-27

Implement Date: 2025-06-30

Scope

This standard specifies the terms and definitions, structural types, technical requirements, test methods, inspection rules, marking, painting, packaging, transportation, and storage of slow-closing butterfly-type intelligent electric check valves. This standard applies to nominal sizes of DN200 to DN2000, nominal pressures of PN6 to PN40, and working media of water and other liquid media. It is suitable for slow-closing butterfly-type intelligent electric check valves (hereinafter referred to as check valves) installed on pipelines with variable speed check and shutoff requirements, and connected by flanges.