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Re: [MW:29795] maximum and minimum size of Dish end end SPIN hole plate.

By Materials & Welding
Dear Sir,

can two holes in dish be accepted as our dish end manufacturer did one hole 140 mm  offset from centre, now he is telling that they will close it and will do hole at centre,according to this two holes will come for which we require two patches, is it acceptable? if not then please provide base of not accepting it if any.

Regards
Mangeram Tyagi

On Friday, September 7, 2012 at 11:40:31 AM UTC+4, cbe swamym wrote:

 

As per ASME

 

Spin-Holes

 

Spin-holes are permitted at the center of heads to facilitate forming. Spin-holes with a diameter less than or equal to 60 mm (2 3/8 in.) may be closed with a full-penetration weld using either a welded plug or weld metal. The thickness of the weld and plug shall be greater than or equal to the thickness of the head material adjacent to the spin-hole. The finished weld shall be examined by the magnetic particle or liquid penetrant method in accordance with Part 7. Full volumetric inspection of the weld in accordance with Part 7 shall be performed in addition to any examinations required by the material specification.



 


Thank & Best Regards,

 

M Veera SAMY- Bureau Veritas.

Coimbatore

 

 


 
From: hsu...@chemithon.co.in
To: material...@googlegroups.com
Subject: [MW:15226] maximum and minimum size of Dish end end SPIN hole plate.
Date: Thu, 6 Sep 2012 09:16:10 +0530

Dear Sir,

What is the minimum  & Maximum size of spin hole plate as per code reference. Pls reply me.

 

HEMANT SUTHAR

QA/QC

CEPL-SILVASSA

9712973092

 


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