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Expander Flange

Posted by: Time:2017.07.26 02:46

Expander flange is a welding-neck pipe flange where the nominal size of the non-flanged end is larger than the nominal size of the flanged end. They can be used to change the size of a pipe run. These are usually used to increase the line size to the first or second larger size. This is an alternative to using a separate reducer and weld neck flange combination. The expander flange can be used to connect pipe to pumps, compressors and Valves.


Expander flanges are also known as a cost effective alternative to using a separate reducer-welding neck flange combination. The expander flange is available in a range of sizes and materials. It’s compact size saves space when compared to a reducer-welding neck flange.

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