What does this mean? Could that expert please teach me?
Thread Content
WN700 (BJ -15Q RF S=8
HG/T20623B WN700-150RF S=8?
Large-diameter steel pipe flange, Class B, WN RF 150 SCH80?
WN700 refers to a 700 caliber; (B) denotes the B series; 15 indicates a pressure rating of 1.5 MPA; RF stands for convex flange; S=8 means that the thickness of the welded part is 8. Common standards include HG20595-97, HG20592-2009, and GB9115.1-2000
Very comprehensive; refers to the standard HG/T20623-2009
This post was last edited by niat8888 on 2018-7-10 07:54 :lol These standards are 10 years outdated. . . . It seems what the poster described isn’t a flange. . . What is the standard number required to make an accurate determination? WN700 (BJ -15Q RF S=8: weld neck type, 700: nominal diameter; BJ-15Q: meaning unknown; RF indicates that the sealing surface type is raised face). . . . S=8: The thickness of the butt-welded end fitting is 8 mm.
BJ-15Q: I don’t know what that means-------------It’s probably because the original poster copied it incorrectly; there is no such term as BJ-15Q. The correct one should be the combination I sent.