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ABOUT FLANGES   Revised: 11/07/2013

For recommended bolt tightening sequence for flanges, Click Here.

Torque values shown applicable to "black" or "plated" bolts and nuts used with integral flanges.  For fluoropolymer coated bolts and nuts click here.

CAUTION: This API flange mates with a 10" 600 CLASS RTJ, ANSI B 16.5 flange.  The resulting connection has a working pressure of 1440 PSI.

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.htmTo compare the difference in stand-off when using R or RX gaskets click here.

CAUTION: The difference in stand-off between R and RX gaskets can cause alignment problems on close coupled manifolding or pressure controlling loops. Assembly designers specify component dimensions which allow for the difference in stand-off between flanges when choosing either R or RX gaskets. When operators perform maintenance that involves disassembly, trouble free reassembly requires using gaskets the same as the gaskets originally chosen.


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 Contact Us link and give us a chance to help, and send WOODCO USA some business.


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.

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Phone: 713-672-9491
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www.woodcousa.com
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