美标法兰大全(外文版)

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美标法兰大全

Flanges
Flanges - General InformationA Flange is a method of connecting pipes， valves， pumps and other equipment to form apipework system. It also provides easy access for cleaning， inspection or modification.
Flanges are usually welded or screwed into such systems and then joined with bolts.

Flange Types
This flange is circumferentially welded into the system
at its neck which means that the integrity of the butt
welded area can be easily examined by radiography.
The bores of both pipe and flange match， which
reduces turbulence and erosion inside the pipeline.
The weld neck is therefore favoured in criticalap plications
This flange is slipped over the pipe and then fillet welded. Slip-on flanges are easy to use in fabricated applications.
This flange is used to blank off pipelines， valves and pumps， it can also be used as an inspection cover. It is sometimes referred to as a blanking flange.