|
|
发表于 2013-9-3 23:04
|
显示全部楼层
来自： 中国湖北鄂州
youngfp 发表于 2013-9-2 17:35 
规范要求乙炔管是不锈钢，氧气管可以说铜管或者不锈钢管。ABS，BV要求是一样的，不过ABS要求高压部分最好有 ...
7.5.1(b) Piping materials. Materials for acetylene on the high-pressure side between the cylinders and the regulator are to be steel. Copper or copper alloys containing more than 65% copper are not to be used in acetylene piping (high or low pressure). Materials for oxygen on the high-pressure side are to be steel or copper. Materials for both acetylene and oxygen on the high-pressure side are preferably to be corrosion resistant. All pipes, both high- and lowpressure sides, are to be seamless.
19.3.3 Piping systems
a) In general, the acetylene and oxygen piping systems are to comply with the following provisions:
? all valves and fittings as well as welding torches and associated supply hoses are to be adapted to this specific service and suitable for the conditions expected in the different parts of the system
? acetylene piping is to be of stainless steel and seamless drawn
? oxygen piping is to be of copper or stainless steel and seamless drawn
? the connections between the various pipe sections are to be carried out by means of butt welding.
Other types of connections including threaded connections and flange connections are not permitted
? only a minimum number of unavoidable connections are permitted provided they are located in a clearly visible position. |
|
提升卡
变色卡
