bolt tightening sequence for flanges, Click Here.
NOTE: Tap end studs and stud bolts shown above have lengths to
accommodate joining 30" 600 MSS full bore flanges with flange
thickness as shown.
30" 600 MSS blind flanges have a flange thickness of 6".
To join a 30" 600 MSS blind flange to a full bore
flange, use studs with lengths as follows.
Studs: 11-1/2" long.
Bolts: 16-3/4" long.
have chosen to make 30" nominal diverters in 500 and 1000
psi working pressure ratings, but have chosen existing MSS
flanges rather than proposing new flanges.
with "R" ring grooves can connect and seal with either
R or RX
ring gaskets. RX gaskets increase the stand-off between flanges, and
studs shown in the illustration above have sufficient length to accommodate RX
gaskets in these connections. In some cases equipment design may
restrict clearance and shorter studs will increase convenience. For
information on these shorter stud lengths, see AWHEM document TR9501 at www.awhem.org/docs.htm.
To compare the difference in stand-off
when using R or RX gaskets click here.
Information above, and in other
parts of this Web Site, may help persons who really seek to know. If you
have a question, or need a quote, please use our
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chance to help, and send WOODCO USA some business.
provides Web Site Tools for identification, estimating, and
reference only. Do not use this information for manufacturing or
inspection. Users of these tools should not use them as a
substitute for professional engineering advice. Anyone making use of the information
presented does so at his own risk and assumes any and all liability resulting from such
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