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shiras
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Join Date: Aug 2012
Posts: 10

Concentric Reducer

08/23/2012 2:23 AM

Anybody please intimate me, Is it possible to manufacture a reducer (concentric/eccentric) from a plate as seamless(without welding). If possible kindly explain that process.
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jesw55
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Join Date: Aug 2010
Location: Wales, UK
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#1

Re: Concentric Reducer

08/23/2012 2:58 AM

Hi Shiras,

More information please, what is the application?, what are the sizes? what is the material? what is the working pressure? and anything else you might think is relevant.

Best regards,

John

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shiras
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Join Date: Aug 2012
Posts: 10
#2
In reply to #1

Re: Concentric Reducer

08/23/2012 3:12 AM

Hi John,

Thanks for your reply. Its application is oil & gas piping, size is 6''x4'' sch.120 and the material is ASTM/ASME SA 240 UNS 31803. let me know about its manufacturing process, from plate without welding. Is it possible to make?

Regards,

Shiras
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jesw55
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#3
In reply to #2

Re: Concentric Reducer

08/23/2012 3:42 AM

Hi Shiras,

Why would you want to form it from plate?, I would have thought it would be made from pipe.

At the very least I would think you needed a plate (possibly with a hole in it) and high tonnage press to extrude the shape with a lot of trimming to reach the final shape.

The process doesn't seem as if it would be very cost effective to me.

Then you would need to have all the tests carried out on the "new design" to ensure it met the relevant standards.

Unless this is a "project" I would think that the current means of production is the most cost effective.

Best regards,

John

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shiras
Active Contributor

Join Date: Aug 2012
Posts: 10
#6
In reply to #3

Re: Concentric Reducer

08/23/2012 4:31 AM

Hi John,

Actually this thing i was asked for one clarification. Because I have one MTC mentioning that raw material is plate & there is no welding. Thatswhy i request for help. Now its clear. I got one drawing series also from manufacturer side. Thanks for your valuable comments.

Regards,

Shiras
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
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#4

Re: Concentric Reducer

08/23/2012 3:49 AM

Deep drawing or metal spinning might do. You should be able to Google these methods and see how they work. (I think forging is the standard process, but not done from plate.)

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shiras
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Posts: 10
#7
In reply to #4

Re: Concentric Reducer

08/23/2012 7:28 AM

K. Thanks
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#5

Re: Concentric Reducer

08/23/2012 4:21 AM

These can be purchased, fully compliant. Why make a special <rhetorical question - NNTR>?

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