英语翻译4.MARKING4.1 Each fitting shall be permanently marked wi

英语翻译
4.MARKING
4.1 Each fitting shall be permanently marked with the required identification by raised lettering,and/or by stamping,electro-etching or-vibro tool.
4.2 The marking shall include (but it is not limited to) the following:
a)Manufacturer's name or trademark.
b) Materialldentfication.The material shallbe identified in accordance with the marking requirements of ASTM Specifications,includ ing Heat Identification.
c) Class.The Fitting Class - "STD" (Standard),"XS" (Extra Strong),"SCH 160"(Schedule 160),"3 000"or "6000".Alternatively the designation 3M or 6M,as applicable,may be used where "M'- stands for l,000.
d) Size.The nominal size ofthe pipe that the fitting's marking identifies - Run (or consolidated range) NPS X Outlet NPS.
e) SP97.This markjng.indicates specification compliance.
4.3 Where size and shape offittings do not permit all ofthe above markings,they may be omitted in the reverse order given above.
5.MATERIAL .
5.1 The material for fittings shallconsist offorgings,bars,and seamless tubular products that conform to the requirements for melting process,chemical composition requirements,and mechanical property requirements ofthe forging product form listed in Table
1,ASME B16.34,including notes.
6.DESIGN AND DIMENSION
6.1 A run pipe having a branch connection is weakened by the opening made in it.The branch connection must reinforce the opening and restore the original strength of the run pipe.It is the intent of this standard that these integrally reinforced branch outlet fittings and the deposited weld metal used to attach the fittings to run pipes contain all the reinforce ment required by the applicable piping codes without the addition of saddles or pads.
6.1.1 The adequacy ofthe design ofbranch connection fittings may be established by mathematical analyses contained in pressure vessel or piping codes,or,at the manufacturer's option,by prooftesting in accordance with Section 7 and Annex B.Records of design or proof tests shall be available at the manufacturer's facility for inspection by the pur-
chaser.
6.1.2 The codes permit a variety ofattachment welds for these fittings.Typical branch attachments are shown in ASME B3 1.1 and B3 1.3.
6.1.3 Fittings shall be contoured to provide a good fit at the opening in the run pipe.The run attachment weld bevel angle design will vary with the size and type of fitting and the manufacturer.The size of the run opening is dependent on each manufacturer's
specification.
6.2 Buttwelding end finish shallcomply with the standard welding bevel and root face of ASME B16.25.
6.3 Threads in threaded fittings shall comply with ASME Bl.20.1 requirements for NPT.
6.3.1 The minimum wall thickness at the root of the thread at the hand tight plane shall be equal or greater than the nominal wall ofthe schedule pipe ofthe appropriate fitting class as shown in Table l.

4.标识
每个拟4.1应永久标记,以提高文字识别、及/或冲压、electro-etching or-vibro工具.
42标识应当包括(但不限于)以下.
一).制造商的名称和商标.
Materialldentfication).这个资料计税依据确定按照标记的ASTM规格,萤火虫ing热识别.
c)班.配件类——“性病”(标准)、“x”(超强度),”舒马赫160”(计划)," 3万160”或“6000”.另外指定或6米,如适用三百万,可用于在“M”,代表了1000.
d)的尺寸.种群的公称通径管配件的标记识别运行(或合并范围)NPS X出口转.
SP97 e).这markjng.indicates规格的符合性.
43在大小和形状offittings不允许所有最最上述标记,他们也可以忽略的相反的顺序给以上.
5.资料.
shallconsist 5.1物料为offorgings配件、酒吧和无缝钢管产品符合要求的熔炼工艺、化学成分和力学性能要求、锻造产品需求表形式
1,B16.34,包括讲稿.
6.设计和尺寸
有一个运行管6.1个分支连接被打开了.这个连接必须加强开放和恢复原有强度的管道.这是该标准,这些整体配件及存放分支插座,焊缝金属用来连接的管道配件,包含所有的强化运行所需之潮的管道标准不加鞍座或垫.
6.1.1军纪的充分性ofbranch连接配件设计可以由数学分析中压力容器或管道标准,或者在生产厂家的选择,prooftesting依照第7节和附件b记录的设计或证明测试应可在商的工厂进行检查的高密度-
驱逐舰.
这个代码允许多种6.1.2 ofattachment焊缝为这些配件.附件中显示的是典型的分支机构和B3 1.3% ASME B3 1.1%.
6.1.3配件部应提供一个合适的开幕典礼.焊接斜角的运行附件的设计将不同的尺寸和类型的配件及制造商.跑开的大小取决于各厂家的
规格.
最后完成shallcomply Buttwelding 6.2级标准,焊接斜角的B16.25 ASME根面.
63螺纹应符合ASME螺纹配件Bl.20.1《不扩散核武器条约》的要求.
6.3.1最小壁厚的线程在手里紧紧飞机应等于或大于其标称墙最最最最适当安排管配件类显示于表格.