可以的。ASME B16.5有解释:
Interpretation: 2-34
Subject: Bolting a Raised Face Flange With a Flat Face Flange
Date Issued: February 18, 1993
File: B16-9235
Question: Do B16.1-1989 and B16.5-1988 prohibit bolting a raised flange
with a standard flat face flange?
Reply: No
可以的。ASME B16.5有解释:
Interpretation: 2-34
Subject: Bolting a Raised Face Flange With a Flat Face Flange
Date Issued: February 18, 1993
File: B16-9235
Question: Do B16.1-1989 and B16.5-1988 prohibit bolting a raised flange
with a standard flat face flange?
Reply: No