“Weld neck flange”的意思、由来-开放百科全书

A weld neck flange (also known as a high-hub flange^[1] and tapered hub flange^[1]) is a type of flange. There are two designs. The regular type is used with pipes. The long type is unsuitable for pipes and is used in process plant.^[2] A weld neck flange consists of a circular fitting with a protruding rim around the circumference. Generally machined from a forging, these flanges are typically butt welded to a pipe. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts.^[4]

Such flanges are suitable for use in hostile environments that have extremes of temperature, pressure or other sources of stress.^[3] The resilience of this type of flange is achieved by sharing the environmental stress with the pipe with which it is welded.^[4] This type of flange has been used successfully at pressures up to 5,000 psi.^[1]

References

1. ^¹{{cite book |url=https://books.google.com/books?id=ZsU5A1mANWUC&pg=PA620&dq=%22Weld+neck+flange%22&hl=en&sa=X&ei=MNQ-VKZfstjsBsSngLgK&ved=0CCwQ6AEwAg#v=onepage&q=%22Weld%20neck%20flange%22&f=false |title=Heat Exchanger Design Handbook |edition=2nd |last=Thulukkanam |first=Kuppan |page=620 |publisher=CRC Press |ISBN=9781439842126 |date=20 May 2013 |accessdate=15 October 2014}}
2. ^{{cite web |url=http://piping-designer.com/Weld_Neck_Flange |title=Piping Designer - Resources for piping, engineering and design |publisher=piping-designer.com/ |accessdate=15 October 2014}}
3. ^¹{{cite book |url=https://books.google.com/books?id=ep5-MDDnt3YC&pg=PA195&dq=%22Weld+neck+flange%22&hl=en&sa=X&ei=G8giVKeHNYKvyASjqoCIDA&redir_esc=y#v=onepage&q=%22Weld%20neck%20flange%22&f=false |pages=195–196 |title=Piping Materials Guide |last=Smith |first=Peter |publisher=Gulf Publishing Company |date=20 January 2005 |accessdate=15 October 2014}}
4. ^¹{{cite book |url=https://books.google.com/books?id=DS_AkW9uiUgC&pg=PA59&dq=%22Weld+neck+flange%22&hl=en&sa=X&ei=G8giVKeHNYKvyASjqoCIDA&redir_esc=y#v=onepage&q=%22Weld%20neck%20flange%22&f=false |pages=59–60 |title=Pipe Drafting and Design |author=Roy A. Parisher, Robert A. Rhea |publisher=Gulf Publishing Company |date= 4 October 2011 |accessdate=15 October 2014}}