GB/T 27725-2011
Butterfly valves of thermoplastics materials (English Version)
- Standard No.
- GB/T 27725-2011
- Language
- Chinese, Available in English version
- Release Date
- 2011
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 27725-2011
- Scope
- This standard specifies the terms and definitions, technical requirements, inspection rules, labeling and signs, packaging, transportation and storage of thermoplastic butterfly valves (hereinafter referred to as butterfly valves). This standard is applicable to manual or power-driven butterfly valves for general industrial water delivery, sewage and waste water systems, domestic hot and cold water, drinking water and heating and ventilation systems. The nominal diameter ranges of butterfly valves specified in this standard are DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500 and DN600. The nominal pressure range is PNO.6, PN1.0, PN1.6.
GB/T 27725-2011 Referenced Document
- GB/T 1048-2005 Pipework components-Definition and selection of PN
- GB/T 12222-2005 Multi-turn valve actuator attachments
- GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system
- GB/T 18475-2001 Thermoplastics materials for pipes and fittings for pressure applications classification and designation--Overall Service(design) coefficient
- GB/T 19278-2003 General terms and their definitions of thermoplastic pipes,fittings and valves
- GB/T 27726-2011 Thermoplastics valves.Pressure test methods and requirements
- 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 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
- ISO ISO IEC 27001-2013 cor2-2015 technical errata*， 2024-04-19 Update
- ISO 10931:2005 Plastics piping systems for industrial applications - Poly(vinylidene fluoride) (PVDF) - Specifications for components and the system
- ISO 15493:2003 Plastics piping systems for industrial applications - Acrylonitrile-butadiene-styrene (ABS), unplasticized poly(vinyl chloride) (PVC-U) and chlorinated poly(vinyl chloride) (PVC-C) - Specifications for components and piping systems; Metric series
- ISO 7005-2:1988 Metallic flanges; part 2: cast iron flanges
- ISO 7005-3:1988 Metallic flanges; part 3: copper alloy and composite flanges
- ISO 8233:1988 Thermoplastics valves; torque; test method
- ISO 8659:1989 Thermoplastics valves; fatigue strength; test method
GB/T 27725-2011 history
- 2011 GB/T 27725-2011 Butterfly valves of thermoplastics materials
