I would like to ask about the pipe code xSCH60 – what does the ‘x’ at the beginning mean?
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I would like to ask about the pipe code xSCH60 – what does the ‘x’ at the beginning mean? Thank you
The designation xSCH60: the ‘x’ here represents a multiplication sign, and it implies \"having\"; it is an alternative way of writing multiplication. For example, a seamless steel pipe designated as φ114XSch60 means that it is a seamless steel pipe with an outer diameter of 114 mm and a wall thickness of Sch60, which is 6.3 mm. See page 592 of the textbook \"Tutorial on Design and Engineering Applications of Industrial Piping\", as well as standards and specifications such as \"Design Techniques for Pressure Piping\".
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Mine is a valve, and the design institute specified it as CL600(PN10.0)xSCH60 – it just seems strange to me:funk:
The valve is denoted as CL600(PN10.0)xSCH60, which indicates that it has flange connections; the flange belongs to the 600 Class, and the wall thickness is SCH60. Sometimes it’s normal to write it this way. Some are described in piping design reference books.
X denotes the dimension at both ends, meaning that the wall thickness at one end is SCH60. The specific thickness for SCH60 can be found in ASME B36.10M-2004
This post was last edited by tie008 on 2017-10-27 at 20:17. There’s nothing strange about it; it’s a valve with a butt weld connection. The wall thickness grade for such a connection is SCH60 – no issues at all! Furthermore, the design institute uses petrochemical standards;~~~ Personally, I suggest it’s better to use chemical industry standards when indicating pressure levels. That 600lb corresponds to 11.0 MPa, not 10.0 MPa~~~ It’s still okay since it’s a butt weld, but if it were a flange joint with an RJ surface, and the matching flanges purchased happened to be of European standard with a pressure rating of 10.0 MPa, some people would cry themselves unconscious in the bathroom~~~
If the valve is specified as CL600(PN10.0)xSCH60, it means that the valve features a buttwelded connection; its pressure rating is 600 Class, and the wall thickness of the buttwelded steel pipe corresponding to this rating is SCH60. Don’t mislead that person upstairs! ! There are many pipe numbers corresponding to SCH: 20#, 40#, 60#, 80#, 160# (XS, XXS). Here, the X represents a connection symbol and doesn’t have much meaning. . .
X represents the dimension at both ends, meaning that the wall thickness at one end is SCH60.
Thank you all, I basically understand now, haha