GB/T 44578-2024 Active National standards

GB/T 44578-2024 Diaphragm valves of thermoplastics materials

Publish Date: 2024-09-29 Implement Date: 2025-04-01 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: GB/T 44578-2024

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Plastic profiles

ICS Name: Plastic pipes, fittings, and valves

Publish Date: 2024-09-29

Implement Date: 2025-04-01

Pages: 19 pages

Scope

This document specifies the materials, design, requirements, inspection rules, marking, packaging, transportation, and storage of thermoplastic diaphragm valves (hereinafter referred to as "diaphragm valves"), and describes the corresponding test methods.
This document applies to the manufacture and inspection of diaphragm valves with a nominal outer diameter (DN) of 16 mm to 280 mm, a nominal pressure (PN) of 0.6 MPa to 1.6 MPa, and an operating temperature of -40°C to 120°C.
This document applies to manual or power-driven diaphragm valves used in industrial water supply pipelines, water treatment pipelines, and drinking water pipelines, among other systems.
Note 1: It is the responsibility of the purchaser to select this product appropriately based on the transported medium, pressure, temperature, or specific application requirements, in accordance with relevant laws, standards, or regulatory requirements.
Note 2: When transporting non-water media, the impact of chemical media on diaphragm valves is described in ISO/TR 10358.

Development Information

Word Count: 36 Thousand words Pages: 19 pages

Referenced Standards

GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 8806-2008 Plastics piping systems—Plastics components—Determination of dimensions GB/T 12222-2005 Multi-turn valve actuator attachments GB/T 12222-2023 Multi-turn valve actuator attachments GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system GB/T 19278-2003 General terms and their definitions of thermoplastic pipes, fittings and valves GB/T 19278-2018 General terms and their definitions of thermoplastic pipes,fittings and valves GB/T 21300-2007 Plastics pipes and fittings—Determination of opacity GB/T 27726-2011 Thermoplastics valves—Pressure test methods and requirements GB/T 28494-2012 Globe valves of thermoplastics materials GB/T 30832-2014 Valves—Test method of flow coefficient and flow resistance coefficient GB/T 44580-2024 Thermoplastics valves—Fatigue strength—Test method GB/T 44576-2024 Thermoplastics valves—Torque—Test method GB/T 8806-1988 Method for dimension measuring of plastic pipes GB/T 17219-2025 Hygienic safety evaluation of distribution equipment,protective materials and treatment materials in drinking water system

Adopt standards

ISO 16138:2006

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