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管线阀门API规范6D第22版2002年1月ISO14313 : 1999，石油和天然气工业——管线输送系统—— 管线阀门生效日期：2002年7月1日国家推荐采用国石油学会第22版6D ISO14313：1999 API前言本标准归口于API阀门和井口设备标准分委员会（API C1/SC6）管辖。

本API标准与ISO14313:1999的英文版等同。

ISO14313由石油、天然气工业SC2管线输送系统的材料、设备和海上结构的ISO/TC67技术委员会编制。

本标准已对下列版本进行了修改：a) 取消了来自于国际标准的ISO前言代之的API特殊的注解和前言；b) 包括了国标指导性附录（附录E—API会标）给使用者提供指南。

本标准在封面上打印生效日期，但可以从发布之日起使用。

API出版物可以被任何想要引用的人使用，学会已尽了最大努力保证出版的资料准确并可靠。

但是学会对这些出版物并不表明或者作出保证，并且特别说明不对由于使用本标准而造成损失或损坏承担任何责任，也不因出版物有矛盾而违背联邦、州或地方的法规承担任何责任。

邀请建议的修改宜送交给Upstream Segment, API, 1200 L Street, NW Washington, D. C. 20005。

翻译：朱翌总校对：王国平ISO14313：1999 API第22版6D特别注解API出版物有必要提出一个共性的问题，有关特殊的情况，宜审查地方、州和联邦的法律和法规。

API没有要求雇主、制造厂或供货商承担预先告知和适当培训及装备其雇员和涉及健康和安全危害有关人员的责任，也没有要求他们承担地方、州和联邦法律的责任。

涉及安全和健康危害的资料和有关特殊材料和条件的适当的预防措施宜从雇主、制造厂或该材料的供货商获得，或者从材料的安全参数资料中获得。

API出版物中所含有的内容对于制造、销售任何方法的使用、专利证书范围内的设备或产品并不意味着授与了任何权利，也不保证任何人在使用出版物所包含的内容中不侵犯有关专利证书而违反法律规定。

通常，API标准每5年要审查、修改、重新批准或者撤消，有时可延长2年的审查周期。

在出版日期之后5年就不再作为有效的API版本，再版前已得到延期批准。

出版标准的状态可以从API授权部门查清[电话(202)682-8000]，API出版物和资料的目录每年定期出版，并由API每季适时更新。

地址：1200 L Street, N. W., Washington, D. C. 20005。

本文件按照标准化程序出版，该程序保证适当的通报，并参加到发展的过程中并指定为API的标准。

涉及到标准内容解释的问题和意见以及涉及标准开发的程序问题可直接书面写给美国石油学会Upstream Segment的部长/总经理，1200 L Street, N. W., Washington, D. C. 20005，请求允许出版或翻译全部或部分标准的要求也可写给部长。

API标准出版能容易地得到大量有效性的证明、良好的工程和操作实践。

涉及在什么时候和什么地方适宜使用这些标准时，这些标准并不企图排除采用良好工程判断的需要。

API标准的系统阐述和出版并不打算以任何方式去禁止任何人使用任何其它的实践方法。

任何符合API标准的标志要求进行标志的设备或材料应对符合该标准全部要求负全部的责任。

API并不代表或保证该产品实际上符合所采用的API标准。

目录1 范围····················································································································································( )2 参照标准············································································································································( )3 术语和定义········································································································································( )4 符号与缩略语····································································································································( )4.1 符号···········································································································································( )4.2 缩略语·······································································································································( )5 阀门类型和结构································································································································( )5.1 阀门类型···································································································································( )5.2 阀门结构···································································································································( )6 设计····················································································································································( )6.1 压力和温度额定值···················································································································( )6.2 尺寸···········································································································································( )6.3 面至面和端至端尺寸···············································································································( )6.4 全通径阀门的最小孔径···········································································································( )6.5 阀门操作···································································································································( )6.6 清管···········································································································································( )6.7 阀门端·······································································································································( )6.8 泄压···········································································································································( )6.9 旁路泄放和放空接口···············································································································( )6.10 手轮和扳手（长柄扳手）········································································································( )6.11 锁紧装置···································································································································( )6.12 位置指示器·······························································································································( )6.13 操作器和阀杆延伸件···············································································································( )6.14 密封剂注射口···························································································································( )6.15 吊耳···········································································································································( )6.16 传动器·······································································································································( )6.17 驱动装置···································································································································( )6.18 阀杆固定···································································································································( )6.19 防火安全···································································································································( )6.20 防静电装置·······························································································································( )6.21 设计文件···································································································································( )6.22 设计文件审查···························································································································( )7 材料····················································································································································( )7.1 材料标准···································································································································( )7.2 操作的相容性···························································································································( )7.3 锻件···········································································································································( )7.4 焊接端·······································································································································( )7.5 韧性试验要求···························································································································( )7.6 螺栓···········································································································································( )7.7 酸气腐蚀操作···························································································································( )8 焊接····················································································································································( )8.1 评定···········································································································································( )8.2 冲击试验···································································································································( )8.3 硬度试验···································································································································( )9 质量控制············································································································································( )。

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api,6d,阀门堆焊和补焊作业规范

api,6d,阀门堆焊和补焊作业规范

api,6d,阀门堆焊和补焊作业规范篇一：API 6D 阀门堆焊和补焊作业规范API 6D 堆焊和补焊作业规范1目的规定对阀门密封面堆焊、铸件补焊等工艺要求，保证产品质量。

2范围适用于阀门产品的密封面堆焊和铸件的补焊。

(PED产品不允许补焊)。

3内容3.1从事密封面堆焊和补焊的焊工,应通过国家质量监督检疫总局制订的《锅炉压力容器压力管道焊工考试与管理规则》基本知识与操作考核，持有锅炉压力容器压力管道特种设备操作人员资格位证书，并在有效期内方可从事焊接作业。

3.2 零件基体材料铸材:WCB、CF8、CF8M、CF3、CF3M、LX0Cr18Ni9、LX 0Cr18Ni9Ti、LX 1Cr18Ni9Ti、LX 00Cr18Ni10、LX 0Cr18Ni12Mo2Ti、WC1、WC6、WC9、C5、LX Cr5Mo、LX 20CrMo、LX 20CrMoV、LX 15CrMoV、LX 1Cr13、CA15、LCB、LCC、LC1、LC2、LC3。

锻材或棒材:25、1Cr18Ni9Ti、0Cr18Ni12Mo2Ti、0Cr17Ni12Mo2、00Cr17Ni14Mo2、15CrMo、1CrMo、304、316、304L、316L、2Cr13、OOCr19NI10。

3.3焊接材料 3.3.1阀门密封面堆焊焊接材料a)基体材料为WCB、25、LCB、LCC 焊条：GB984-85 D507 D507Mo D577 GB983-85 A102 A132b)基体材料:奥氏体不锈钢类、WCB、25、LCB、LCC、WC1、WC9、LX1Cr5Mo、C5、LX20CrMo、LX20CrMoV、LX15CrMoV。

焊条：D802、D812，焊丝HS111；c)按产品图纸规定选择焊接材料牌号。

当堆焊钴基硬质合金时，根据工艺方法选择D802、D812或HS111； 3.3.2 承压铸件补焊用焊条a)基体材料为WCB,采用GB5117-85 J422、J502（型号E5003）或J507（型号E5015）焊条；b)基体材料为奥氏体不锈钢类，焊条选用见表1；c)基体材料为低温耐热钢类，焊条选用见表2；d)基体材料为低温钢类，焊条选用见表3。

API 6D-2002管线阀门-中文版

API 6D-2002管线阀门-中文版


3.9 流量系数 Kv 温度为 5 40ºF 至 40
104ºF 的水流过阀门产生 1 巴压力损失的容积流量 m3/小时
注
KV 与流量系数
CV 的关系为 KV
= CV
1156
,
Cv
是温度为
15.6
流量 加仑/分钟
60ºF 的水流过阀门产生 1 磅/英寸²压降的水
3.10 全通径阀门: 阀门通径无阻挡 可使与阀门公称尺寸相同的圆球或其它内部工具通过
8
美国石油学会
API 标准 6D/ISO 14313 1999
9
3.34 单向阀门 设计用来只在一个方向上进行密封的阀门
3.35 文杜里旋塞阀 从全通径平滑过渡到缩口的阀门 但通过旋塞的孔口缩小比较大
4. 符号与缩写
4 1 符号
Cv 英制流量系数 Kv 公制流量系数
4 2 缩写
BM base metal CE carbon equivalent DBB Double-block –and-bleed DN Nominal size HAZ Heat-affected zone HR Rockwell hardness HV Vickers hardness MPD Maximum pressure differential MT Magnetic particle testing NDE Non-destructive examination NPS Nominal pipe zise PN Nominal pressure PQR Procedure qualification record PT penetrant testing PWHT Post-weld heat treatment SMYS Specified minimum yield strength WM Weld metal WPS Weld procedure specification WQR Welder qualification records
API6DDBB及DIB型管线阀门结构解析

API6DDBB及DIB型管线阀门结构解析

API6DDBB及DIB型管线阀门结构解析核心提示：旋塞阀、平板闸阀和固定式球阀，是应用DBB和DIB结构最多的阀种，本文根据API公开的相关标准及增补资料，结合固定式球阀阀座密封结构的具体功能实现，对DBB和DIB型管线阀门的技术特征作一初步解析，以期为制造商正确设计和用户合理选型API6D标准管线阀门，提供实例指引。

美国石油学会(AmericanPetroleumInstitute，API)在2008年4月第23版API6D 《Petroleumandnaturalgasindustries-Pipelinetransportationsystems-Pipelinevalves》《(石油天然气工业-管道输送-管线阀门》)标准(也即国际标准ISO14313：2007)中第4.7和第4.8节明确提出了DBB及DIB型管线阀门的结构特征定义，由于标准原文在这两处的表述非常简略，且较为相似，易导致使用者解读时出现较多偏差，给业内特别是厂家设计部门和用户层面，造成一定程度的技术混淆和供货纠纷。

旋塞阀、平板闸阀和固定式球阀，是应用DBB和DIB结构最多的阀种，本文根据API 公开的相关标准及增补资料，结合固定式球阀阀座密封结构的具体功能实现，对DBB和DIB 型管线阀门的技术特征作一初步解析，以期为制造商正确设计和用户合理选型API6D标准管线阀门，提供实例指引。

1 管线阀门的DBB、DIB结构定义DBB和DIB概念，是API为适应现代油气工业流体控制设备市场，对管线阀门的低成本高可靠性需求而提出的，如在危险介质(易燃易爆、有毒、有腐蚀性等)输送管线下游进行维修巡检时，要求开关阀必须实现零泄漏(ZeroLeakage)以可靠地截断介质，对在线阀门本身密封性能进行检测，甚至对其进行小规模维护时。

要求管网不停车等。

1.1 DBBAPI6D：2008中关于DBB结构定义的原文为：“Duble-block-and-bleedvalve：Singlevalvewithtwoseatingsurfacesthat，intheclosedposition，providesasealagainstpressurefrombothendsofthevalvewithameansofventing/bleedingthecavitybetweentheseatingsurfaces(Note：Thisvalvedoesnotprovidepositivedoubleisolationwhenonlyonesideisunderpressure.)”[1]建议译作“双阻塞与排放阀：具有两个阀座密封面的单体式(非复合联装式)阀门，当其处于关闭位置时，能阻断(阻塞)同时来自阀门上下游端的介质压力，且夹持在阀座密封面间的阀体腔介质有泄放通道。

API 6D产品试验规范

API 6D产品试验规范

为了在腔体的方向试验阀座泄漏，阀门应关闭。试验压力应逐次施加于每一阀门端以自上游侧分别试验每一阀座。泄漏应通过阀门体腔泄压阀连接处监测。
其后，每一阀座应作为下游阀座进行试验。阀门两端应排空并阀腔注入试验介质。然后应施加压力，同时在阀门的两端监测通过每一阀座的泄漏。
4.5.4单向座和双向座的双座阀
4.5.4.1单向座
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昆山东吴阀门有限公司
文件编号：DW TP-6D-05
第0次修订
标题：API 6D产品试验规范
修订日期：
实施日期：2005.03.01
版号：A/0
页码：3／4
4.5截断类阀门的试验程序
4.5.1单向阀
随着阀门半开启，阀门和其内腔应完全充满试验介质。然后阀门应关闭并试验压力施加至阀门相应端。
来自每一阀座的泄漏应通过阀门体腔的排放连接监测。对于没有体腔（排放）连接的阀门，阀座泄漏应监测自在阀门各自下游端每一阀座（带压试验介质的阀端下游）。
松开）除非试验孔口是专门为本试验提供的。
2.3阀门在两端封闭和关闭件处于部分开启位置应注入试验介质直到观察到围绕阀杆有试验介质的泄漏。然后应关闭上密封并提供最小为1.1倍的在38℃(100℉)材料确定的压力额定值，试验压力和时间按表1规定的试验压力和表2规定的时间。
2.4泄漏的监测应通过一试验观察孔口或通过围绕松开的填料监测泄露。在其试验压力下，不允许有可见的泄露。
在壳体液压试验中不允许有可见泄露。
壳体液压试验后，外部泄压阀应（再）装配到阀门上。同阀体的连接应在95%的泄压阀整定压力下进行试验，对于尺寸小于等于DN100（NPS 4）的阀门试验保压时间为2分种，对于尺寸等于DN150（NPS 6）的阀门保压时间为5分种。在试验中泄压阀的连接应无可见的泄露。