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关于《金属硬密封提升式旋塞阀》的编制说明

发布时间:2016-12-31  编辑:taikevalve 查看:

关于《金属硬密封提升式旋塞阀》的编制说明
  One,the background
 
  At present,only iron plug valves national standard,iron plug valves can only be used in low pressure condition.Elevated metal seal plug valve is in recent years the development of new plug valves faster,it uses the first upgrade after Kai closed valve operation mode,greatly reducing the opening and closing torque of plug valve,and is different from the traditional cock the rectangular valve necking channel,the valve usually adopts a circular channel,the fluid pressure valve is greatly reduced,enhance the type metal seal plug valve with ball valve and gate valve.It can be used for high temperature,high pressure,greatly expanding the scope of application of the plug valve.The product has a good market prospect.But at present there is no corresponding product standard.In order to better production and application of improved type metal seal plug valve,in order to better regulate the elevated metal seal plug valve.With the performance,and make the product design more standardized and standardized,the urgent need to develop appropriate product standards
 
  Two,the principles of the preparation of standards
 
  The standard format is based on the GB/T1.1-2000<standard work guidelines part first:Standard for the structure and drafting of rules,GB/T1.2-2002<directives for Standardization-Part second:Standard normative technical elements content determination method.This standard provides improved type metal seal plug valve structure,parameters,technical requirements,materials.Test method,inspection rules,signs,nameplate and delivery requirements.The standard is mainly referring to some related standards at home and abroad,such as:API 599<flange and welding metal plug connection>>ASME B16.10<,the length of the structure of the valve,flange and butt welding steel plug valves,ball valves and>both at home and abroad gate valve standard BS1570<petroleum industry.The main technical indicators to enhance metal seal plug valve,such as shell strength,sealing performance is consistent with the domestic and foreign advanced standards,ensure production The advanced nature of the product.
 
  Three,the main technical content description
 
  3.1 according to foreign standards and regulations of the relevant data and actual production enterprises in China,will enhance the type metal seal plug valve of the nominal pressure is less than PN160,nominal size range is DN25~DN300,the nominal pressure and nominal size range to meet the basic use of improved type metal seal plug valve requirements.
 
  3.2 according to the actual design and production experience,this standard gives the typical structure of the metal hard seal poppet valve,which has a certain guiding significance for the future design and manufacture of the product
 
  3.3 due to elevated metal seal plug valve is mainly used for high temperature,high pressure and some of the more important occasions,therefore,this standard only provides for carbon steel,stainless steel,valve body and valve manufacturing chrome molybdenum steel and low temperature steel cover,does not recommend the nodular cast iron,cast iron and other materials.
 
  3.4 this standard specifies the minimum wall thickness of the valve body,the minimum wall thickness data and API600,API599 and GB/T 12234 and other domestic and foreign steel valve standard data are basically the same
 
  Only 3.5 domestic and foreign BS1570<British Petroleum Industrial flange and butt welding of steel plug valves to the circular channel full size standard>plug valve,plug valve structure length data required so other standards are generally not applicable to the circular channel full bore plug valves.The standard reference to the British standard BS1570,BS2080 structure the length of elevated metal seal plug valve.
 
  3.6 the standard is different from general standard plug valves,plug valves generally use the conventional rectangular necking channel,standard plug valve channel is generally circular,and set a minimum channel channel and reducing channel diameter,the minimum diameter of the specified channel basically in accordance with ISO 17292 and GB/T 12237 standard consistent.
 
  3.7 the Standard Specification for metal hard seal plug valve shell strength and sealing performance in line with GB/T******(JB/T 9092),and the United States API 598 standards,to ensure that the product has advanced performance
 
  3.8 the standard of the metal hard seal lift plug valve maximum operating force has been made to ensure that the valve can be opened and closed easily,reflecting the advanced metal seal valve advanced
 
  3.9 the connection flange adopts the national standard GB/T 9113<integral steel pipe flange>and GB/T 9124<steel pipe flange technical conditions>>
 
  Four,conclusion
 
  The formulation of the standard,issued and implemented,making rule-based design,to enhance the type metal seal plug valve,make the product design,manufacturing more unified,scientific,reasonable,product quality can be fully guaranteed,and helps to enhance the type metal seal plug valve in the popularization and application of the country.
 
  Attached:Download:machinery industry standard"elevated metal seal plug valve>preparation instructions according to the National Standardization Technical Committee[2008]No.twenty-fourth valve standard committee secretary,drafting machinery industry standard"elevated metal seal plug valve.
 
  一,背景
 
  目前,只有铁塞阀国家标准,铁塞阀只能在低压条件下使用。高压金属密封塞阀是近年来开发的新型旋塞阀更快,它采用先后升级后凯阀关闭阀门操作模式,大大降低了旋塞阀的开关扭矩,与传统旋塞阀不同之处在于矩形阀颈缩通道,阀门通常采用圆形通道,流体压力阀大大降低,增强型带有球阀和闸阀的金属密封塞阀。它可用于高温,高压,大大扩大了旋塞阀的应用范围。该产品有很好的市场前景。但目前还没有相应的产品标准。为了更好地生产和应用改进型金属密封塞阀,为了更好地调节提升的金属密封塞阀。随着性能的提高,使产品设计更加规范化,标准化,迫切需要开发适当的产品标准
 
  二,准则的制定原则
 
  标准格式基于GB/T1.1-2000<标准工作准则第一部分:规则结构和起草标准GB/T1.2-2002<标准化指令-第二部分:标准规范性技术要素内容确定方法。本标准提供改进型金属密封塞阀结构,参数,技术要求,材料。测试方法,检验规则,标志,铭牌和交货要求。该标准主要是指国内外一些相关标准,如:API 599<法兰和焊接金属插头连接>>ASME B16.10<,阀门结构长度,法兰和对焊焊钢阀塞,球阀等>国内外闸阀标准BS1570<石油工业。增强金属密封塞阀的主要技术指标,如壳强度,密封性能符合国内外先进标准,确保产品的先进性。
 
  三,主要技术内容描述
 
  3.1根据国外相关标准和规定的相关数据和实际生产企业在中国,将增强型金属密封塞阀的公称压力小于PN160,公称尺寸范围为DN25DN300,公称压力和公称尺寸范围以满足改进型金属密封塞阀的基本使用要求。
 
  3.2根据实际设计和生产经验,本标准给出了金属硬密封提升阀的典型结构,对未来产品的设计和制造有一定的指导意义
 
  3.3由于提升的金属密封塞阀主要用于高温,高压等一些较重要的场合,因此,本标准仅提供碳钢,不锈钢,阀体和阀门制造铬钼钢和低温钢覆盖,不推荐球墨铸铁,铸铁等材料。
 
  3.4本标准规定了阀体的最小壁厚,最小壁厚数据和API600,API599和GB/T 12234等国内外钢阀标准数据基本相同
 
  只有3.5国内外BS1570<英国石油工业法兰和对接焊接的钢塞阀到圆形通道全尺寸标准>旋塞阀,旋塞阀结构长度数据要求,所以其他标准一般不适用于圆形通道全孔旋塞阀。标准参考英国标准BS1570,BS2080结构的高度金属密封塞阀的长度。
 
  3.6标准不同于一般标准旋塞阀,旋塞阀一般采用常规矩形颈缩通道,标准旋塞阀通道一般为圆形,并设置最小通道通道和缩径通道,指定通道的最小直径基本上按照符合ISO 17292和GB/T 12237标准一致。
 
  3.7标准规范金属硬密封塞阀壳的强度和密封性能符合GB/T******(JB/T 9092)和美国API 598标准,以确保产品具有先进的性能
 
  3.8标准的金属硬密封提升塞阀的最大操作力是确保阀门可以轻松打开和关闭,反映了先进的金属密封阀门先进
 
  3.9连接法兰采用国家标准GB/T 9113<整体钢管法兰>和GB/T 9124<钢管法兰技术条件>>
 
  四,结论
 
  标准的制定,颁布和实施,制定基于规则的设计,加强型金属密封塞阀,使产品设计,制造更统一,科学,合理,产品质量可以完全保证,有助于提高型金属密封塞阀在国家的普及和应用。附件:下载:机械行业标准“高架金属密封塞阀”>根据国家标准化技术委员会[2008]第二十四届阀门标准委员会秘书,起草机械行业标准“高架金属密封塞阀。

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