GB/T 37621-2019Buried type butterfly valve (English PDF)
直埋式蝶阀
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 4, 2019
Implementation date
May 1, 2020
Scope
GB/T 37621-2019 is the English-translated version of 直埋式蝶阀.
GB/T 37621-2019 is the Chinese standard "Buried type butterfly valve". Its scope clause reads: This standard specifies the structural form, product model, material, requirements, test methods, inspection rules, and direct-buried butterfly valves (hereinafter referred to as butterfly valves).
Marking, packaging, transportation and storage.
This standard applies to the nominal pressure is not greater than PN25, the nominal size DN200 ~ DN3000, the working temperature is 0 ° C ~ 80 ° C, transport The medium is a non-corrosive liquid or gas and a low viscosity acid, alkali, salt and other corrosive liquid or gas ductile iron shell material, direct A butterfly valve buried in the ground. Its clauses include terms and definitions.
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Document preview — GB/T 37621-2019
National Standard of the People's Republic of China
- ICS
- 91.140.60
- Classification
- P 41
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Structure
- 5 Product Model
- 6 Material
- 7 Requirements
- 8 Test method
- 9 Inspection rules
- 10 logo
- 11 Packaging, transportation and storage
1 Scope
This standard specifies the structural form, product model, material, requirements, test methods, inspection rules, and direct-buried butterfly valves (hereinafter referred to as butterfly valves).
Marking, packaging, transportation and storage.
This standard applies to the nominal pressure is not greater than PN25, the nominal size DN200 ~ DN3000, the working temperature is 0 ° C ~ 80 ° C, transport
The medium is a non-corrosive liquid or gas and a low viscosity acid, alkali, salt and other corrosive liquid or gas ductile iron shell material, direct
A butterfly valve buried in the ground.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 1220 stainless steel rod
GB/T 3098.6 Mechanical properties of fasteners Stainless steel bolts, screws and studs
GB/T 4208 enclosure protection grade (IP code)
GB/T 6739 Paint and varnish pencil method for determination of film hardness
GB/T 9286 color and varnish paint film cross-cut test
GB/T 10002.3 hard polyvinyl chloride (PVC-U) valve for water supply
GB/T 12220 industrial valve sign
GB/T 12225 general valve copper alloy casting technical conditions
GB/T 12227 general valve ductile iron casting technical conditions
GB/T 12230 general valve stainless steel casting technical conditions
GB/T 13663 polyethylene (PE) pipe for water supply
GB/T 13927 industrial valve pressure test
GB/T 17219 Safety evaluation criteria for drinking water distribution equipment and protective materials
GB/T 21873 Rubber seals for water supply and drainage pipes and sewage pipelines
General technical requirements for GB/T 26500 fluoroplastic lining steel pipes and fittings
GB/T 32808 valve model preparation method
CJ/T 511 cast iron inspection manhole cover
JB/T 106 valve marking and painting
JB/T 7928 Industrial Valve Supply Requirements
JB/T 8863 butterfly valve static pressure life test procedure
3 Terms and definitions
The following terms and definitions apply to this document.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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