Re: [MW:12613] Need the miter angle detail from DNV code

dear sir,

Clarification: Can we cut the bend to change the degree???

Regards
antony
sr.inspection engineer.

On 10/3/11, antony jenis <antonyjenis@gmail.com> wrote:
> Dear karthik,
>
> thanks for your reply.its useful for me.
>
> Regards
> antony
> sr.inspection engineer.
>
> On Mon, Oct 3, 2011 at 7:44 AM, Karthik <karthik6684@yahoo.com> wrote:
>
>> Hi,
>> Please find herewith the attached file might be useful to you.(FAQ for
>> DNV-OS-F101 Submarine Pipelines Systems )
>> *What constitutes a mitred joint and what constitutes angular
>> mis-alignment?*******
>>
>> Section 7, Paragraph G106 states that mitred bends are not permitted.
>> However, Section 7, Paragraph B700 references ASME VIII & BS5500 or other
>> industry standard with regard to components fabricated by welding. ASME
>> B31.8, Section 841.232 paragraph a) also states that mitred bends are not
>> permitted but qualifies that angular misalignments of less than 3° is not
>> considered a mitre.
>>
>> So, what is the interpretation of OS-F101? Is an angular misalignment of
>> less than 3° acceptable?"
>>
>> DNV OS-F101 is intended to be applied to subsea pipelines and alignment
>> is
>> in the majority of cases obtained by the use of internal or external
>> alignment clamps. Requirements to angular misalignment of a pipeline
>> follows from Section 5, H200 Pipe Straightness and is hence limited by
>> design considerations from case to case.
>> A mitred bend is made by introducing on purpose an angular misalignment
>> between lengths of pipe. Such bends are not acceptable regardless of the
>> angular misalignment between adjacent pipes.
>>
>> *Back to
>> Top<http://one.dnv.com/offshore/oct750/DNV%20OS-F101%20FAQ.htm#top>
>> *
>> ------------------------------
>>
>>
>> Leif Collberg
>> Copyright © Det Norske Veritas. All rights reserved.
>> Revised: September 10, 2001.
>>
>>
>>
>> *Thanks & Regards,
>> *
>> *
>> *
>> *(Karthik)
>> *
>> *
>> *
>> *Karthikeyan.S*
>> *QA/QC Manager*
>> *Getabec Energy Co.,Ltd.*
>> *379,Moo6,Soi8,Nikhomphatana,*
>> *Rayong-21180,*
>> *Thailand.*
>> *Phone: 0066 38 897035-8 (Off)*
>> *Fax: 0066 38 897034*
>> *Hand Phone: 0066 892512282*
>>
>>
>> --- On *Sat, 10/1/11, antony jenis <antonyjenis@gmail.com>* wrote:
>>
>>
>> From: antony jenis <antonyjenis@gmail.com>
>> Subject: Re: [MW:12599] Need the miter angle detail from DNV code
>> To: materials-welding@googlegroups.com
>> Date: Saturday, October 1, 2011, 11:19 PM
>>
>> Dear manoj,
>> Thanks for your reply
>> I have the detail about miter cut in other codes.
>> But i need the DNV F101 or other DNV code says any thing about miter cut.
>> If anybody have related miter cut detail means just update me.
>>
>>
>> Regards
>>
>> antony
>> Sr.inspection engineer.
>>
>>
>> On Sat, Oct 1, 2011 at 4:22 AM, manu
>> <manojkumar.dme@gmail.com<http://us.mc1205.mail.yahoo.com/mc/compose?to=manojkumar.dme@gmail.com>
>> > wrote:
>>
>> Dear Antony;
>>
>> please provide how cut mitter are you planning to do ; i can give you the
>> cut back dimension if you provide the correct details
>>
>> Regards
>> manoj\
>>
>> On 30 September 2011 13:32, antony jenis
>> <antonyjenis@gmail.com<http://us.mc1205.mail.yahoo.com/mc/compose?to=antonyjenis@gmail.com>
>> > wrote:
>>
>> Dear Friends,
>>
>> If anybody have the detail about the miter cut & angle detail from the
>> DNV
>> code please send me the detail.
>> here we have in offshore pipeline we have 30 degree angle miter joint .
>> Material;API 5L X65,
>> dia:48 inch.
>> thickness;20 mm
>>
>> --
>> Thanks & Regards
>> Antony Jenis
>> Offshore Sr.Surveyor / Representative,
>> GERMINSCHER Lloyd-NOBLE DENTON
>> IRAQ CRUDE OIL EXPANSION PROJECT,IRAQ OFFSHORE,
>> LIGHTEN DSV, ORANDA-1
>> UAE Mobile No: 00971505624002
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>> The views expressed/exchnaged in this group are members personel views
>> and
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>> and
>> meant for educational purposes only, Users must take their own decisions
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>>
>
>
>
> --
> Thanks & Regards
> Antony Jenis
> Offshore Sr.Surveyor / Representative,
> GERMINSCHER Lloyd-NOBLE DENTON
> IRAQ CRUDE OIL EXPANSION PROJECT,IRAQ OFFSHORE,
> LIGHTEN DSV, ORANDA-1
> UAE Mobile No: 00971505624002
>

--
Thanks & Regards
Antony Jenis
Offshore Sr.Surveyor / Representative,
GERMINSCHER Lloyd-NOBLE DENTON
IRAQ CRUDE OIL EXPANSION PROJECT,IRAQ OFFSHORE,
LIGHTEN DSV, ORANDA-1
UAE Mobile No: 00971505624002

--
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To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.