On this page you will find API Spec 6A Top Connector information. By selecting the Flange (or Hub) size and working pressure that corresponds to the run of the Christmas Tree, you will view the API specified upper connection dimensions.

Provided links give access to illustrations and/or additional information.
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API TOP CONNECTOR SLIDE RULE

INDEX

THIS "WEB SITE TOOL" GIVES YOU THREE USEFUL WAYS TO VIEW TOP CONNECTOR DIMENSIONAL INFORMATION. SCROLL DOWN TO SELECT THE WAY THAT WORKS BEST FOR YOU.
   

Top Connectors specified in API Spec 6A have designated uppermost Collar connections for specific Flange and Hub sizes and working pressures. API Spec 6A does not mention cross adaptation. Following the exact Flange / Hub top connection specification allows operators to always know the uppermost connection if they know the Run connections of the Christmas Tree. If adapting proves necessary operators may use an independent unit of equipment or order a special Top Connector with the desired combination of sizes and pressures.

To learn more about API Top Connectors, click here.

To view catalog pages for API Top Connectors, 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.