GB/T 12224-2005 钢制阀门 一般要求

ICS23.060.30

J16荡鸿

中华人民共和国国家标准

GB/T12224-2005

代替GB/T12224-1989

钢制阀门一般要求

Generalrequirementsforindustrialsteelvalves

2005-09-19发布2006-04-01实施

中华人民共和国国家质量监督检验检疫总局.*

中国国家标准化管理委员会44'f17

GB/T12224-2005

目次

前言···············································，，，。·······。··，·，··，，，，··········，·······························……皿

1范围·············································。·。·······，，，·······，，，，，，····································……1

2规范性引用文件···，，，，，，，······，·····，··，··，··················································..·.·.·……1

3压力一温度额定值·····。。·····，·，，，··············································································……3

3.1概述·······。。。····，··。··，，，，，，·，··············································································……，3

3.2额定温度·，·，，，，，，·，···················，·，·，··································································……3

3.3温度影响，······，·，························································································……。3

3.4法兰连接端阀门使用要求，，················，，，，·······························……12

3.5偏差·························································································，·，，·。·········，···，，一12

3.6多种材料等级····················································································..……，，，，，.，12

3.7局部运行条件····················································································……，，，，，，，12

4标志································································································，·。········，，，，，，12

5材料·，·····，·······，······························································································，，，，，，13

5.1概述·····································································································，·，···。··一13

5.2材料选择···············································································，·，，，，·，··············一·13

5.3防静电要求····································································。·。········。一，，，，，·，，一13

6设计要求··································································，·，。。···········，，，·····，，，，·，·······……13

6.1阀体设计··································································，，。。。，·。··。·。·····，·，······，··，，，···……13

6.2端部尺寸····································································。，·。···，。，··，，，，，，·，·，，·······，··……17

6.3辅助连接件········································································，·，，，，。···一·，。.，，.，，..…，…18

6.4阀门组件······································，，··············，，，······，···································……20

6.5阀杆············································，，，，·，·········。。。，。，，··········································……22

6.6安装限制·······································。·。···········，·，，，，··················，····················……22

6.7对夹式阀门·······························。·。。···。·····，，，，，，，，······，，···················.···……22

7检验与试验·································，···，。·。，·····。·。。·。，，，，，，············，······························……22

7.1检验·······················································。·。。·。···············································……22

7.2压力试验，······，，，，，·········，··，，····，·，······························································...……23

S缺陷清除及修复···。。。··，，，，，，，，··············，·，·，··························································……24

8.1缺陷清除·····。·。。。。。·。·，，，，·，·······，················，························································……24

8.2补焊修复··。。·。·。··，··，·，，，，，，，，，，，，，，，，·····································································……24

附录A(资料性附录)阀门公称尺寸和阀体端部基本内径的关系····································……25

附录B(资料性附录)压力一温度额定值的确定方法······················································一26

B.1概述·······，，·，·······························································································一，26

B.2标准压力级额定值的确定方法··························································.·……26

B.3特殊压力级额定值的确定方法··················································.·.·……27

附录C(规范性附录)阀门的无损检验要求·······························································……28

C.1范围，，，，，，，··，··，····，，，，，，，·················································································……28

C.2概述···················································································。··。·。。。，·，··，，，，，··，，，，一28

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ca/T12224-2005

C.3规定的检查··········································································。。，···。··········，，一28

附录D(规范性附录)特殊压力级阀门压力一温度额定值·，，，。。···。，·，，，，，，，，··，··，····，，·············……33

图1阀体颈部····················································································，，·。一，。，，，..…15

图2蝶阀阀体························································································。···。·。…，二17

图3焊接端坡口·······························································································一·18

图4辅助连接的螺纹长度···················································································……19

图5辅助连接用凸台···········································································。···。··。……，，。。.19

图6辅助连接的承插焊················································································……19

图7辅助连接的对焊·····················································································……20

图8辅助连接位置的表示方法···················································.·……21

图C1闸阀阀体(自密封阀盖)····························································.··.·..·……29

图C2Y型截止阀阀体(自密封阀盖)，·，，，，·······························································……29

图C.3角阀阀体(自密封阀盖)················································.·……，……30

图C.4下弯阀体(自密封阀盖)···································································.·……30

图C.5闸阀阀体(法兰连接的阀盖)···················，···································.·……30

图C.6截止阀阀体(法兰连接的阀盖)，，，，，··，··········，，·················································……31

图C.7蝶阀阀体.·,-31

图C.8旋塞阀阀体······························，·，···。········，，，，··，，，······，·，·，·······················..……31

图C.9管道闸阀阀体(自密封阀盖)···，·，··，，·，，，，，，···········，·····················.·……32

图C.10蝶形阀盖·························。。，。·。，··。。·····。·。。。。·····，···，，，，······，····，，，······················……32

图C.11盖板··········································，，，···，··············，，，，，，····，·························……32

表1钢制阀门承压件材料················································，，。··…，一，，，，，，，二，，，.，二，，，……2

表2-1至表2-12标准压力级阀门压力一温度额定值·································.·..·.……，.，，…4

表3壳体最小壁厚fm..。一，，，，，二，，，·……14

表4焊接端部尺寸···························································。···。，··。。····，，，·，，··，·，·，·······一18

表5辅助连接壳体螺纹有效长度···············································4一，，，，…，，，，，，……19

表6辅助连接壳体承插焊接有关尺寸·············································，·……~一‘，，…，，.，…19

表7辅助连接凸合的外接圆直径·······················································.·...……20

表8辅助连接件规格·······················································································…·…20

表9阀门壳体试验持续时间·······················································……，.，，，…，，……23

表100.6MPa气体进行密封试验的阀门··················································.·……23

表11阀门密封试验持续时间·································································.·.·..·……23

表A.1阀门公称尺寸和阀体端部基本内径的关系······················································……25

表D.1至表D.12特殊压力级阀门压力一温度额定值······················································……33

GB/T12224-2005

目p言

本标准与ASMEB16.34a-1998《法兰、螺纹和焊接端连接的阀门》的一致性程度为非等效.主要差

异如下:

—本标准取消了ASMEB16.34a-1998中7,3渗漏探测装置的内容。

—本标准取消了ASMEB16.34a-1998中附录B射线照相规程和验收标准的内容。

—本标准取消了ASMEB16.34a-1998中附录C磁粉检验规程和验收标准的内容。

一一本标准取消了ASMEB16.34a-1998中附录D液体渗透检验规程和验收标准的内容

—本标准取消了ASMEB16.34a-1998中附录E超声波检验规程和验收标准的内容。

—本标准取消了ASMEB16.34a-1998中附录G限定压力级阀门要求的内容。

—本标准取消了ASMEB16.34a-1998中附录H质里体系程序的内容。

—本标准取消了ASMEB16.34a-1998中附录I参照标准和技术条件的内容。

—本标准对ASMEB16.34a-1998中附录F确定压力一温度额定值方法的内容作了适当精简。

—本标准把ASMEB16.34a-1998中条款8特殊压力级阀门规定检验的内容放在附录C中。

本标准代替GB/T122241989((钢制阀门一般要求》。

本标准与GB/T12224-1989相比主要变化如下:

—标准格式按GB/T1.1-2000标《准化工作导则第1部分:标准的结构和编写规则》作了

调整;

—适用范围由“公称压力PN16^-320”修改为“公称压力PN16-VPN760气

—在设计要求部分的端部尺寸内容增加了承插焊接端和螺纹连接端;

—本标准中“压力一温度额定值”的制定方法及不同材料的压力一温度额定值按本标准表2-1至

表2-12和GB/T9124-2000((钢制管法兰技术条件》的规定;

—对GB/T12224-1989材料部分的4,4"精密铸造件不得用于公称压力PN>100的阀门”的规

定作了相应修改;

—对GB/T12224-1989材料部分的4.5和4.6按ASME16.34:1998的规定作了相应修改;

—，在设计要求部分增加了阀门组件、安装限制、对夹式阀门3部分;

—增加了标准压力级阀门压力一温度额定值:

增加了阀门的检验与试验部分;

增加了缺陷清除与修复部分;

—增加了附录A管道公称尺寸和内径的关系;

—增加了附录B压力一温度额定值的确定方法;

—增加了附录C阀门的无损检验要求;

—增加了附录D特殊压力级阀门压力一温度额定值;

本标准技术内容与ASMEB16.34a--1998基本一致，技术水平与之相当

本标准附录A和附录B为资料性附录，附录C和附录D为规范性附录。

本标准由中国机械工业联合会提出。

本标准由全国阀门标准化技术委员会((SAC/TC188)归口。

本标准主要起草单位:合肥通用机械研究院、中核苏阀科技实业股份有限公司、沈阳盛世高中压阀

m

GB/T12224-2005

门有限公司、上海市通用机械技术研究所、上海良工阀门厂、浙江五洲阀门制造有限公司、武汉锅炉集团

阀门有限责任公司、上海亚核阀业成套有限公司。

本标准主要起草人:高秉申、陈鉴平、郑云海、孔彪龙、杨恒、郑祖辉、吕召政、杨志聪。

本标准所代替标准历次版本发布情况为:

—GB/T12224-1989

GB/T12224-2005

钢制阀门一般要求

范围

本标准规定了钢制阀门的压力一温度额定值、材料、设计要求、检验与试验、标志和无损检验与修复

等内容。

本标准适用于表1给出的各种材料，阀体可以是铸造、锻造和组焊加工，端部连接可以是法兰、螺

纹和焊接端连接，以及对夹式和单法兰安装的阀门。

本标准适用阀门的参数范围为:

a)公称压力PN16--PN760的阀门，公称压力PN760仅适用于焊接端阀门;

b)公称尺寸不大于DN125。的法兰连接端阀门和对焊连接端阀门;

c)公称尺寸不大于DN65的承插焊接端阀门和螺纹连接端阀门;

d)额定温度不大于5400C、公称压力不大于PN420的螺纹连接端阀门;

e)公称压力PN16-PN25的法兰连接端阀门，额定温度不大于540-C.

2规范性引用文件

下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注明日期的引用文件，其随后所

有的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研

究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。

GB150-1998钢制压力容器

GB/T193-2003普通螺纹直径与螺距系列(ISO261:1998,MOD)

GB/T197-2003普通螺纹公差(ISO965-1:1998,MOD)

(;B/T228-2002金属材料室温拉伸试验方法(eqvISO6892:1998)

GB/T711-1988优质碳素结构钢热轧厚钢板和宽钢带(neqIOCT1577)

GB/T1047-2005管道元件DN(公称尺寸)的定义和选用(ISO6708:1995,IDT)

GB/T1048-2005管道元件PN(公称压力)的定义和选用(ISO/CD7268:1996,IDT)

GB3531-1996低温压力容器用低合金钢钢板

GB/T4237-1992不锈钢热轧钢板(neqJISG4304:1984)

GB6654-1996压力容器用钢板

GB/T7306-2000550密封管螺纹(eqvISO7-1;1994)

GB/T9113一9123-2000钢制管法兰

GB/T9124-2000钢制管法兰技术条件

GB/T12220通用阀门标志(GB/T12220-1989,idtISO5209:1977)

GB/T12221金属阀门结构长度(GB/T122212005,ISO5752;1982,MOD)

GB/丁12228通用阀门碳素钢锻件技术条件

GB/T1222，通用阀门碳素钢铸件技术条件

GB/T1223。通用阀门奥氏体钢铸件技术条件

GB/T12716-2002600密封管螺纹(eqvASMEBI.20.1:1992)

GB/T13927通用阀门压力试验(neqISO5208;1982)

GB/T14976-2002流体输送用不锈钢无缝钢管

JB/T1751-1992阀门结构要素承插焊连接和配管端部尺寸

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GB/T12224-2005

JB4726-2000压力容器用碳素钢和低合金钥锻件

JB4727-200。低温压力容器用碳素钢和低合金钢锻件

JB4728--200。压力容器用不锈钢锻件

JB/T5263电站阀门钢铸件技术条件(neqANSI/ASTMA217M)

JB/T6439阀门受压铸钢件磁粉探伤检验

JB/T6440阀门受压铸钢件射线照相检验

JB/T6902阀门铸钢件液体渗透检查方法

JB/T6903阀门锻钢件超声波检查方法

JB/T7248阀门低温铸钢件技术条件

JB/T7927阀门铸钢件外观质量要求

3压力一温度额定值

3.1概述

3.1.1压力一温度额定值

压力一温度额定值按表2的规定，除表2规定的以外按GB/T9124-2000的规定。

3.1.2标准压力级阀门

满足本标准要求的阀门，除满足附录C阀门的无损检验要求之外的阀门，都定为标准压力级阀门，

其压力一温度额定值按3.1.1的规定。

3.1.3特殊压力级阀门

满足3.1.2要求的阀门，并且满足附录C阀门的无损检验要求，其压力一温度额定值按附录D中

表D.1至表D.12的规定。特殊压力级额定值不适用于法兰连接端阀门。

3.1.4中间额定值阀门

在公称压力等级数值内，处于表列额定温度之间或额定压力之间的中间额定值可以用线性插值法

确定。但对法兰连接端阀门，不允许用线性插值法确定公称压力。

3.1.5组焊件

完全或部分用铸件、锻件、棒料、板材或管材组焊的阀门应满足下列要求:

a)焊件的组焊和热处