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                                                                        關于《金屬硬密封提升式旋塞閥》的編制說明

                                                                        發布時間:2016-12-31  編輯:taikevalve 查看:

                                                                        關于《金屬硬密封提升式旋塞閥》的編制說明
                                                                          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,只有鐵塞閥國家標準,鐵塞閥只能在低壓條件下使用。高壓金屬密封塞閥是近年來開發的新型旋塞閥更快,它采用先后升級后凱閥關閉閥門操作模式,大大降低了旋塞閥的開關扭矩,與傳統旋塞閥不同之處在于矩形閥頸縮通道,閥門通常采用圓形通道,流體壓力閥大大降低,增強型帶有球閥和閘閥的金屬密封塞閥。它可用于高溫,高壓,大大擴大了旋塞閥的應用范圍。該產品有很好的市場前景。但目前還沒有相應的產品標準。為了更好地生產和應用改進型金屬密封塞閥,為了更好地調節提升的金屬密封塞閥。隨著性能的提高,使產品設計更加規范化,標準化,迫切需要開發適當的產品標準
                                                                         
                                                                          二,準則的制定原則
                                                                         
                                                                          標準格式基于GB/T1.1-2000<標準工作準則第一部分:規則結構和起草標準GB/T1.2-2002<標準化指令-第二部分:標準規范性技術要素內容確定方法。本標準提供改進型金屬密封塞閥結構,參數,技術要求,材料。測試方法,檢驗規則,標志,銘牌和交貨要求。該標準主要是指國內外一些相關標準,如:API 599<法蘭和焊接金屬插頭連接>>ASME B16.10<,閥門結構長度,法蘭和對焊焊鋼閥塞,球閥等>國內外閘閥標準BS1570<石油工業。增強金屬密封塞閥的主要技術指標,如殼強度,密封性能符合國內外先進標準,確保產品的先進性。
                                                                         
                                                                          三,主要技術內容描述
                                                                         
                                                                          3.1根據國外相關標準和規定的相關數據和實際生產企業在中國,將增強型金屬密封塞閥的公稱壓力小于PN160,公稱尺寸范圍為DN25?DN300,公稱壓力和公稱尺寸范圍以滿足改進型金屬密封塞閥的基本使用要求。
                                                                         
                                                                          3.2根據實際設計和生產經驗,本標準給出了金屬硬密封提升閥的典型結構,對未來產品的設計和制造有一定的指導意義
                                                                         
                                                                          3.3由于提升的金屬密封塞閥主要用于高溫,高壓等一些較重要的場合,因此,本標準僅提供碳鋼,不銹鋼,閥體和閥門制造鉻鉬鋼和低溫鋼覆蓋,不推薦球墨鑄鐵,鑄鐵等材料。
                                                                         
                                                                          3.4本標準規定了閥體的最小壁厚,最小壁厚數據和API600,API599和GB/T 12234等國內外鋼閥標準數據基本相同
                                                                         
                                                                          只有3.5國內外BS1570<英國石油工業法蘭和對接焊接的鋼塞閥到圓形通道全尺寸標準>旋塞閥,旋塞閥結構長度數據要求,所以其他標準一般不適用于圓形通道全孔旋塞閥。標準參考英國標準BS1570,BS2080結構的高度金屬密封塞閥的長度。
                                                                         
                                                                          3.6標準不同于一般標準旋塞閥,旋塞閥一般采用常規矩形頸縮通道,標準旋塞閥通道一般為圓形,并設置最小通道通道和縮徑通道,指定通道的最小直徑基本上按照符合ISO 17292和GB/T 12237標準一致。
                                                                         
                                                                          3.7標準規范金屬硬密封塞閥殼的強度和密封性能符合GB/T******(JB/T 9092)和美國API 598標準,以確保產品具有先進的性能
                                                                         
                                                                          3.8標準的金屬硬密封提升塞閥的最大操作力是確保閥門可以輕松打開和關閉,反映了先進的金屬密封閥門先進
                                                                         
                                                                          3.9連接法蘭采用國家標準GB/T 9113<整體鋼管法蘭>和GB/T 9124<鋼管法蘭技術條件>>
                                                                         
                                                                          四,結論
                                                                         
                                                                          標準的制定,頒布和實施,制定基于規則的設計,加強型金屬密封塞閥,使產品設計,制造更統一,科學,合理,產品質量可以完全保證,有助于提高型金屬密封塞閥在國家的普及和應用。附件:下載:機械行業標準“高架金屬密封塞閥”>根據國家標準化技術委員會[2008]第二十四屆閥門標準委員會秘書,起草機械行業標準“高架金屬密封塞閥。

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