Tuesday, January 4, 2022

Butt weld fittings: stub end

Butt weld fittings: stub end

A Stub End always will be used with a Lap Joint flange, as a backing flange; both are shown on the image below.
Butt weld fittings: stub end

This flange connections are applied, in low-pressure and non critical applications, and is a cheap method of flanging.

In a stainless steel pipe system, for example, a carbon steel flange can be applied, because they are not come in contact with the product in the pipe.

Stub End is available in almost all pipe diameters. Dimensions and dimensional tolerances are defined in the ASME B.16.9 standard. Light-weight corrosion resistant Stub Ends (fittings) are defined in MSS SP43.

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