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NOTE: Tap end studs and stud bolts shown above have lengths to
accommodate joining 30" 900 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.
Tap End
Studs: 11-1/2" long.
Stud
Bolts: 16-3/4" long.
Manufacturers
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.
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.
WOODCO USA 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
use.
FOR FURTHER INFORMATION, OR TO LEARN MORE ABOUT WOODCO
USA PRODUCTS AND SERVICES,
CONTACT:
WOODCO
USA
P.O. Box 1261
Houston, Texas 77251-1261
Phone: 713-672-9491
USA and Canada: 1-800-496-6326
Fax: 713-672-8768
www.woodcousa.com
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