GB/T 12227-2025 Active National standards

GB/T 12227-2025 General purpose industrial valves—Technical specification for ductile iron castings

GB/T 12227-2025 General purpose industrial valves—Technical specification for ductile iron castings

Publish Date: 2025-10-31 Implement Date: 2026-05-01 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 12227-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: \nValve

ICS Name: \nValve Comprehensive

Publish Date: 2025-10-31

Implement Date: 2026-05-01

Pages: 16 pages

Scope

This document specifies the technical requirements, test methods, inspection rules, marking labels, accompanying documents, as well as packaging, transportation, and storage for general-purpose valve nodular cast iron parts.
This document is applicable to the design, production, and inspection of ferritic-pearlitic nodular cast iron (hereinafter referred to as "nodular cast iron") for general-purpose valves.

Development Information

Word Count: 17 Thousand words Pages: 16 pages

Replace the following standards

GB/T 12227-2005 General purpose industrial valves—Specification of spheroidal graphite iron castings

Referenced Standards

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 229-1994 Metallic materials—Charpy notch impact test GB/T 229-2007 Metallic materials—Charpy pendulum impact test method GB/T 229-2020 Metallic materials—Charpy pendulum impact test method GB/T 1348-1988 Spheroidal graphite iron castings GB/T 1348-2009 Spheroidal graphite iron castings GB/T 1348-2019 Spheroidal graphite iron castings GB/T 5611-1998 Foundry terminology GB/T 5611-2017 Foundry terminology GB/T 6414-1999 Castings—System of dimensional tolerances and machining allowances GB/T 6414-2017 Castings—Dimensional tolerances and geometrical tolerances and machining allowances GB/T 9441-1988 Metallographic test for spheroidal graphite cast iron GB/T 9441-2009 Metallographic test for spheroidal graphite cast iron GB/T 9441-2021 Metallographic test method for spheroidal graphite cast iron GB/T 9441-2021 Metallographic test method for spheroidal graphite cast iron GB/T 11351-1989 Mass tolerances for castings GB/T 11351-2017 Mass tolerances of casting GB/T 12220-1989 General purpose industrial valves—Marking GB/T 12220-2015 Industrial valves—Marking GB/T 13927-1992 Pressure testing for general purpose valves GB/T 13927-2008 Industrial valves—Pressure testing GB/T 13927-2022 Industrial valves—Pressure testing

Related Standards

GB/T 17213.1-1998 Replaced

GB/T 17213.1-1998 Industrial-process control valves—Part 1:Control valve terminology and general considerations

Publish Date: 1998-01-21

GB/T 17213.5-1998 Replaced

GB/T 17213.5-1998 Industrial-process control valves—Part 5:Marking

Publish Date: 1998-01-21

GB/T 17213.7-1998 Replaced

GB/T 17213.7-1998 Industrial-process control valves—Part 7:Control valve data sheet

Publish Date: 1998-01-21

GB/T 17213.8-1998 Replaced

GB/T 17213.8-1998 Industrial-process control valves—Part 8:Noise considerations Section 1:Laboratory measurement of noise generated by aerodynamic flow through control valves

Publish Date: 1998-01-21

GB/T 12222-2005 Replaced

GB/T 12222-2005 Multi-turn valve actuator attachments

Publish Date: 2005-02-21

GB/T 12223-2005 Replaced

GB/T 12223-2005 Part-turn valve actuator attachments

Publish Date: 2005-02-21