Question: What does “XH” mean in the specifications of American standard flanges?
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Recently, the company imported a batch of flanges that meet American standards. The specifications of these flanges are, for example, 6\"-150# WNRF XH FLGS. I would like to know what the “XH” stands for The purchase request specifies the wall thickness grade for SCH80 pipes; the standard designation should be SCH80 or XS. After searching extensively for information with no success, I thank all the experts for helping me solve this problem! :handshake
Was it typed by mistake? Ask the imported manufacturer.
XH refers to the pipe wall thickness; the commonly used SCH wall thickness codes in the past were STD, XH, XS, EH, XXH, and XXS. For flanges, it is important to ensure that the groove at the flange’s welding end is consistent with XH.
It’s the foreign owner who specified it; there’s nothing we can do!
It seems that the XH rank no longer exists.
Yes! So I’m struggling...
What a high-end flange; they even buy imported ones. How expensive must it be?