Standard No.:	GB/T 12226-2005
Chinese Name:	通用阀门灰铸铁件技术条件
English Name:	General purpose industrial valve??Specification of flake graphite iron castings
Professional Classification:	J16 Valve
Professional Classification:	GB National Standard
ICS Classification:	23.060.01 Valves in general
Issued by:
Issued on:	2005-07-11
Implemented on:	2006-01-01
Status:	VALID
Replace:	GB/T12226-1989 General purpose industrial valves-Specification of flake graphite iron castings
Language:	English
File Format:	PDF
Word Count:
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1 Scope

This Standard specifies technical requirements, test methods, inspection rules, as well as marking, packaging, and storage of general purpose industrial valves - flake graphite iron castings.
This Standard is applicable to general purpose industrial valves, flanges, pipe fittings and other pressure-containing flake graphite iron castings(hereinafter referred to as casting).

2 Normative References

The following normative documents contain provisions which, through reference in this Standard, constitute provisions of this Standard. For dated reference, subsequent amendments (excluding corrigendum), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this Standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition applies.
GB/T 6060.1 Roughness Comparison Specimens - Cast Surfaces (GB/T 6060.1—1997，eqv ISO 2632-3;1979)
GB/T 6414 Castings - System of Dimensional Tolerances and Machining Allowances (GB/T 6414—1999，eqv ISO 8062:1994)
GB/T 7216 Gray Cast Iron Metallography (GB/T 7216—1987，neq ISO 945:1975)
GB/T 9439-1988 Grey Iron Castings
GB/T 11351 Mass Tolerances for Castings