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第39页
Page 39
铜管管件
Copper Tube Fittings

美国尼伯科有限公司
     
连接类型
TYPES OF JOINTS
     
  扩口连接 - 扩口连接的原理是由美国尼伯科公司在1928年首先为铜管管件发明的。扩口类型连接是铜管完全机械式连接方式。管道螺母放置在连接铜管的末端端口上,然后采用扩口工具将管道端口扩口成45度角。接着通过管道螺母将扩口端拔出使其内部表面与管件球座紧密结合。这种连接方式随时可以拆卸,实际上相当于活接头连接方式。扩口连接方式通常局限于软(退火)铜管,因为在进行扩口连接时(如果末端端口事先没有进行退火处理)硬拉管道可能会导致管道劈开。美国尼伯科公司扩口管件的扩口末端端口都是按照美国机械工程师协会ASME B16.26“用于扩口铜管的铸造铜合金管件” 标准的要求生产的。
  Flared Joint - The principle of the flared joint was first developed for copper tube plumbing in 1928 by NIBCO. The flared type joint is wholly a mechanical means of joining copper tubes. The tube nut is placed over the end of the copper tube to be joined; the tube end then is flared out at an approximate 45 degree angle by a flaring tool. The flared end is then drawn up by the tube nut so the inside surface is tightly secured against the ball seat of the fitting. This joint can be readily dismantled at any time and is, in effect, a type of union connection. Its use is generally restricted to soft (annealed) copper tubes since hard drawn tubes would be subject to splitting when flared (if the ends were not previously annealled). The flared ends of NIBCO Flared Fittings are produced to the requirements of ASME B16.26, "Cast Copper Alloy Fittings for Flared Copper Tube."

  焊料连接 - 美国尼伯科公司是开发焊料连接方式的先驱者,并将这种连接方式应用到铜管管道领域。如今,焊料连接已经被广泛采用,证据就是美国大多数城市和州的正式规程中都将铜管道和焊料连接作为一般管件、水管线、通风、烟道、废水和排水管道以及其他工业用途的理想连接方式。实验证明,根据所选用的焊料合金,通常焊料连接的强度甚至高于所连接的管道。对于完全实现焊接强度的要求来说,虽然准备焊料连接的方法是一种非常严格的技术,但是这种方法对于熟练的技术人员来说还是很容易掌握的。正是由于这个原因,为了确保管道连接的准备工作能够正确恰当,货源安全可靠,美国尼伯科产品都是通过著名的管道供应商进行销售。焊料连接准备工作的重要步骤在本样本第48页中有图文并茂的描述。
  Solder Joint - NIBCO pioneered the development of the solder joint and its application to the field of copper tube piping. Today the solder joint is widely adopted, as evidenced by the majority of cities and states that have written codes to include copper tube and solder joints as desirable for general plumbing, water lines, vent, stack, waste and drain lines, as well as other uses in industry. Testing has shown that often the solder joint has greater strength than the tubes being joined, depending upon the soldering alloy selected. While the method of preparing a solder joint is an exacting art to insure a full strength joint, it can be readily mastered by skilled tradesmen. It is for this reason - to insure the public of the protection afforded by properly prepared joints - that NIBCO products are marketed through the reputable sources of supply to the piping trades. Important procedures for preparing a solder joint are graphically illustrated in this catalog on page 48.

  铜焊连接 - 在铜管道可能遇到紧急情况的地方和时候,就需要用到这种连接方式。这种连接方式与焊料连接在许多方面是相同的,但是在焊接过程中要求更多的热量和多种更精致的技术,这些特殊的步骤在本样本第49~50页中有进一步的描述。
  Brazed Joint - This type of joint has long been used wherever and whenever critical situations have been encountered in copper piping. The joint itself is completed much in the same manner as the solder joint; however, considerably more heat and several refinements of technique require separate procedures that are described further in this catalog on pages 49-50.

  螺纹连接 - 为了将铜管适配到配置美国标准锥管螺纹(NPT)的设备上,或者将铜管连接到现存安装的铁管上以及其他螺纹连接件上,美国尼伯科公司提供配置外螺纹和内螺纹管件。这些螺纹端口的制造过程符合美国机械工程师协会ASME B1.20.1“管道螺纹,通用(英寸)”标准的要求。
  Threaded Ends - To adapt copper tube to equipment having National Standard Pipe Taper (NPT) threads or to add copper tube to existing iron pipe installations or other threaded connections, NIBCO provides fittings having both external and internal NPT threads. These threaded ends are produced to the requirements of ASME B1.20.1, "Pipe Threads, General Purpose (Inch)."

 

  法兰 - 为了将铜管适配到配置法兰连接端口的设备上,或者将铜管连接到法兰管道上以及其他用途上,美国尼伯科公司提供法兰管件。根据铜管实际应用中常用的法兰种类,美国尼伯科公司生产两种标准类型法兰。一种是压力等级150法兰,符合美国机械工程师协会ASME B16.24“铸造铜合金管道法兰和法兰管件压力等级150,300,400,600,900,1500和2500”标准;另一种是压力等级125法兰,符合美国阀门及配件制造商协会MSS SP 106“铸造铜合金法兰和法兰管件压力等级125,150和300”标准。
  Flanges - To adapt copper tube to equipment having flanged connections, or to add copper tube to flanged pipe installations or other purposes, NIBCO provides flanges. The flanges are produced in two standard types widely used in this field where copper tube can serve - Class 150, comply with ASME B16.24, "Cast Copper Alloy Pipe Flanges and Flanged Fittings Class 150, 300, 400, 600, 900, 1500 and 2500"; and Class 125, which conform to MSS SP 106, "Cast Copper Alloy Flanges and Flanged Fittings Class 125, 150 and 300."

  用于聚丁烯(PB)的倒钩插入式管件 - 美国尼伯科公司提供完整系列的铜倒钩插入式管件,用于连接聚丁烯管道。这种插入式管件的生产制造符合美国材料实验协会ASTM F 1380的标准。与插入式管件一起提供的还有铜压接环,如果正确使用铜压接环,将能够实现零泄漏机械连接。还可提供转换管件,用于适配新的或现存的螺纹或焊料连接端口。
  Barbed Insert Fittings for Polybutylene (PB) - NIBCO offers a complete line of copper barbed insert fittings for joining PB tube. The insert fittings are produced to the requirements of ASTM F 1380. Along with the insert fittings are copper crimp rings, which, when properly installed, provide a leak-tight mechanical joint. Transition fittings are available for adapting to new or existing threaded or solder joint ends.

 
管件术语和缩写
Fitting Terms and Abbreviations
     
C   内焊料连接杯口接头
Female solder cup
Ftg   外焊料接头
Male solder end
F   内NPT螺纹接头
Female NPT thread
M   外NPT螺纹接头
Male NPT thread
Hose   标准软管螺纹接头
Standard hose thread
Hub   粪管内接头
Female end for soil pipe
Spigot   粪管外接头
Male end for soil pipe
No Hub   用于机械管接
Used with mechanical coupling
O.D. Tube   实际管道外直径
Actual tube outside diameter
S   直螺纹
Straight thread
SJ   伸缩接头
Slip joint
FL   扩口接头
Flared
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