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# Thread: Calculation for Dishend of Vessel

1. Junior Member

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Nov 2008
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## Calculation for Dishend of Vessel

Dear All,

I am here writing to ask one doubt so if anybody knows this then please tell me.

I m working as Trainee Engineer. I am required to calculate how many plates of which sizes required for manufacturing of dishend?

I have calculated BlankDiameter...now i m stuck with how to calculate..numbers of plates required. I need this for procurement.

So I am requesting if any body knows this then please reply me back.

Thanks Very Much

Hardik

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3. Junior Member

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Feb 2009
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hi,
Could you type in your question more clearly? Number of plates? are you trying to put a mitred end closure?

4. -

5. Senior Member

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Jun 2008
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114
Dear member,
If you got the diameter of the blank, then it is the plate size physically available are the informations you nedd to decide on the number of plates required for the blank. You need to join them before into sufficient ly enough for accomodating the blank plate onto joined plates. Standard plates sizes available are 2, 2..5 mts or even 1.6 mts wodth. length of the plate may vary such as 6, 5.6, 10, 12 mts of standard mill lengths.
After joining them you nedd to do ultrasonic test or radiographic tests to make joint as good as parent plate itself. Then go for marking the blank plate dimension on to it. Cut to size and use it for dished end pressing.

6. Junior Member

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Sep 2008
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## hi here is the excell file

Check the zip file attached . it contains a excell file calculation the dish end for a boiler

7. Member

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Dec 2008
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dear all,

how to calculate required power to forming dish end ??? torque or Force power

thanks,
marv01

8. Junior Member

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Oct 2009
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please send me design of 102 PSI Diameter of vessel is 660mm and hieght is 1600mm
4 nozzles of dia 50mm at 160mm centre to centre and one nozzle at the top of dia 42mm please specify thickness of shell and dish end and other related designs
Thanks and Regards

9. Member

Join Date
Nov 2007
Location
Saudi Arabia
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gentlemen,

Try to fit whole dish in one single plate so that you can avoid lot of stresses and if you are making in two or more plates, then there will be more stress and it required RT (100%). So go for one single plate.

br,
sameer

10. Junior Member

Join Date
Feb 2009
Posts
5
well we use the dish end having 2 radius one knuckle and crown radius . having
formula like

r=.17 D
R=.906 D
sf =50
Height of dish end=.25 D

D= dia of tank

how can calculate the blank dia for dat.

11. Junior Member

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May 2010
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Dear Hardik,
can you send me blank dia calculator for dished end
tmvgirish@rediffmail.com

thanks

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Prashanth thanq

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Originally Posted by marv01
dear all,

how to calculate required power to forming dish end ??? torque or Force power

thanks,
marv01
See the following site:

[link Point to another website Only the registered members can access]

14. Very Active Member

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Originally Posted by tmvgirish
Dear Hardik,
can you send me blank dia calculator for dished end
tmvgirish@rediffmail.com

thanks
See the following site:

[link Point to another website Only the registered members can access]